Answer:
1) Ocean currents can carry warm water, which can raise the temperature of the air and land.
2) Ocean currents can carry cold water, which can cool the air and land.
The effects that ocean currents have on short-term climate change are as follows:
Ocean currents can carry warm water, which can raise the temperature of the air and land.Ocean currents can carry cold water, which can cool the air and land.Thus, the correct options for this question are A and B.
What is Climate change?Climate change may be characterized as the significant alterations in global temperature, precipitation, wind patterns, and other measures of climate that occur over several decades or longer. It generally involves the long-term shifting of temperature and weather patterns.
Ocean currents act like conveyer belts that particularly transport warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching the Earth's surface.
Therefore, the correct options for this question are A and B.
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Why do you think the complementary base pairing between the two strands helps cells to detect and
repair errors in their DNA?
Answer: answer is.......
Explanation: Strands are complementary to each other, its mean that if one strand contain Adenine, Gunine and cytosine so on the other strand there will Thymine bond with Adenine, Cytosine with Gunanine and Gunanine with Cytosine. DNA molecules have an antiparallel structure - that is, the two strands of the helix run in ... Replication relies on complementary base pairing, that is the principle explained ... DNA replication occurs through the help of several enzymes.
Answer:
Strands are complementary to each other, strand contain Adenine, Thymine Gunine and cytosine the other strand will also have this just in a different pattern. They have an antiparallel structure, a complementary strand is needed in order for replication to occur, along with the help of many enzymes.
What is your hypothesis regarding difference in urine "chloride" concentration between subjects who drank water and subjects who drank a sports drink? Briefly state the physiologic basis for your prediction. Did your results support your prediction? If not, provide a possible explanation.
Answer:
Chloride concentration in urine is more who drank sport drink as compared to a person who drank normal water.
Explanation:
Chloride concentration in urine is high who drank sport drink as compared to a person who drank water because in sport drink there is more concentration of salts are present which is required our body. Due to more salts present in the sport drink, more chloride is present in urine due to the removal from the body while normal water has less amount of salts so urine has less concentration of chloride in urine.
Answer: there is an increased chloride content in subjects who drank sport drinks compared to those who drank water.
Explanation:
Chloride concentration in urine is high in subjects who drank sport drink as compared to a subject who drank water because more concentration of salts are present in sport drinks which is required our body. Due to more salts present in the sport drink, more chloride is present in urine due to the removal of excess chloride from the body while normal water has less amount of salts and also aid in diluting Cl content which makes the urine less concentrated.
Edit: Use the drop-down menus to select the storm that causes each environmental hazard.
Flash flood - (options: thunderstorm, tornado, hurricane)
Storm surge - (options: thunderstorm, tornado, hurricane)
Answer:
it is actually thunderstorm and hurricane
Explanation:
Environmental hazard flash flood is due to thunderstorms and storm surge is due to hurricanes.
What is an environmental hazard?The majority of flash flooding is brought on by thunderstorms that move slowly, move over the same region repeatedly, or bring heavy rainfall from hurricanes and tropical storms.
On rare occasions, ice or floating debris may build up near a natural or artificial obstacle and impede water movement. The unexpected increase in water caused by a storm's winds is known as a storm surge.
Storm surges and powerful waves can cause significant property damage and fatalities near the shore.
Therefore storm surges and a flash flood is an environmental hazards. condition by thunderstorm hurricane.
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Which of the following factors does NOT influence biodiversity?
The PCR primer ‘D7S820’ is used to amplify the D7S820 locus. Using this gel below, determine whether each person (M1, P1, P2, C1) is homozygous or heterozygous at this locus. Also determine the size of each person’s amplicons. Using this gel, you can determine paternity. M1 is the mother. C1 is the child. Is P1 or P2 the father of C1? Explain how you made this determination. If you were actually determining paternity, would you use one PCR primer? Why?
Answer:
1) M1 is heterozygous since it contains 2 bands, which means that it contains one recessive and one dominant allele
P1 is homozygous for this locus, since it contains a single band or is known to be homozygous for the locus or gene.
P2 is hetozygous for this locus because two bands appear in which each band represents one allele for the gene.
ChildC contains two gel bands, representing two alleles and is therefore heterozygous
P1 is the father of the child C1, if we look at the gel, each father shows a similar band, one coinciding with the mother and the second with the father p1
As for the paternity study, the PCR test is not useful, since it provides asymmetric results, thus only one strand information will be provided, and because the DNA is double-stranded, a more complete study is required.:
3. ¿Cuáles son las dos técnicas utilizadas para restaurar la biodiversidad?
Answer:
Las dos técnicas utilizadas para restaurar la biodiversidad son la biorremediación y el aumento biológico.
Explanation:
Giant pandas use their thumbs to grip and eat bamboo. They spend most of their time eating and save energy by not moving much. They live near streams of fresh water and have no natural predators. They reproduce once every two years. This description is an example of
Answer:
Explanation:
For many years, scientists wondered whether pandas were a type of bear, raccoon or something all their own. But plenty of genetic studies have made it clear that pandas are a type of bear, according to the San Diego Zoo.
Also called great pandas, parti-colored bears, bamboo bears and white bears, giant pandas are distinguished from other pandas by their large size and black-and-white coloring. Their bold coloring provides camouflage — giant pandas are nearly invisible in dense patches of bamboo, according to the Smithsonian National Zoo.
Giant pandas grow to be 27 to 32 inches (70 - 80 centimeters) tall at the shoulder, 4 to 5 feet (1.2 to 1.5 meters) long and can weigh up to 275 lbs. (125 kilograms), according to the San Diego Zoo Their size is about the same as an American black bear. By comparison, the giant panda's distant relative, the red panda, is only 20 to 26 inches (50 to 65 cm) tall and weighs 10 to 20 lbs. (4.5 to 9 kg).
In the wild, giant pandas are only found in the remote, mountainous regions of central China, in Sichuan, Shaanxi and Gansu provinces, according to the National Zoo. In this area, between 5,000 and 10,000 feet elevation (1,524 - 3,048 m), are the cool, wet bamboo forests that giant panda's call home. The large bears make their dens from hollowed-out logs or stumps of conifer trees found within the forest.
Answer:
This is an example of a K-selected species.
Explanation:
K-selected species are characterized by being more intelligent in comparison to their counterpart - r-selected species - saving more energy (being energy efficient), having a weaker sex drive (reproducing less) and the tendency to delay maturation.
Compare the environmental and societal impact of urban sprawl to upward growth. please hurry!!!
Answer:
Urban sprawl means the Migration of population from the densely populated cities to the low populated areas around the cities.
Urban Sprawl has a huge impact on the environment. Urbanisation leads to cutting down of trees which are called deforestation. Deforestation is extremely bad for the environment because it creates a disbalance in the environment. Trees are extremely important to us because they provide us with raw materials and oxygen and we should not cut down the trees at any cost.
When people move further and further out from the city center, only the poor are left behind int he city. They have no choice but to live in the most blighted areas. Buildings are crumbling, shops are closed, and access to basic necessities is lacking. The natural environment is often damaged as well. For example, unhealthy air quality is aggravated by heavy traffic congestion, causing high rates of respiratory illnesses. The quality of life in these abused and neglected urban centers is greatly reduced.
Explanation:
Urban sprawl negatively impacts the environment through increased automobile dependency, land consumption, and pollution, leading to socioeconomic segregation and higher developmental costs.
Upward growth, representing high-density living, is often more sustainable but may also result in high-density sprawl. The greatest challenge for sustainable cities is controlling sprawl to conserve resources and promote a better quality of urban life.
The environmental and societal impact of urban sprawl compared to upward growth, refers to the consequences on the environment and society when cities expand horizontally versus growing vertically. Urban sprawl, characterized by low-density expansion into rural areas, increases average travel distances, encourages automobile dependency, and leads to extensive land, energy, and soil consumption.
These factors contribute to greenhouse gas emissions and elevate air and noise pollution levels. Sprawl also has socioeconomic impacts such as segregation of development by income, greater societal divisions, and increased developmental costs.
Contrarily, upward growth in cities, through the construction of high-rise buildings and denser living spaces, can be more sustainable, reducing pressure on surrounding agricultural and natural lands, and promoting efficient use of land and resources.
However, it might also lead to high-density sprawl depending on the urban design and infrastructural support. The sustainable city model aims to tackle these challenges by integrating growth within the existing urban footprint, promoting high-density living, and encouraging sustainable transportation options.
The major hindrance for designing a sustainable city is suburban sprawl, as it spreads into natural and agricultural lands and necessitates greater resource allocation for infrastructure, leading to economic and environmental challenges.
How is a junior penguin able to survive in the ocean?
someone now this question
Answer:
the penguins have a special care process since the hatching of the egg, the newborns receive care from their parents and have warmth from them placing themselves between their paws, the parents take turns caring for them and when the father is not with the chick, he goes in search of food, which he gives regurgitated, then the cris can go to a kindergarten where others of the same age are cared for by a herd of penguins, however his parents go to the sea and feed and continue to bring food to their son, this process it is kept until they change plumage and are ready to get their food on their own.
Final answer:
Junior penguins are able to survive in the ocean due to adaptations such as blubber for insulation, waterproof feathers, and the ability to store and use oxygen efficiently.
Explanation:
Junior penguins are able to survive in the ocean due to several adaptations and behaviors. Firstly, penguins have a layer of body fat called blubber, which helps to keep them warm in cold water. This fat also helps them to float and conserve energy. Secondly, penguins have specialized feathers that are waterproof, allowing them to stay dry while swimming. These feathers trap air, providing insulation and buoyancy. Finally, penguins have evolved a unique way of storing and using oxygen. Unlike other birds, penguins can control how much oxygen they carry in their lungs when diving. They can store oxygen in their muscles and blood, allowing them to stay underwater for extended periods of time.
Which of the following statements best describes the significance of the ocean to humans?
Answer:C
Explanation:
Answer:
The ocean is a source of oxygen, water, food, minerals, and other resources.
Explanation:
Humans depend on the materials that the ocean provides. Most importantly, the ocean's microscopic algae create the majority of the world's oxygen. Without this oxygen, most forms of life on Earth would die.
The ocean also provides humans with resources such as water, food, minerals, and resources such as oil.
the Blank immune system consists of cellular immunity and humoral immunity
Answer:
Adaptive Immune System
Explanation:
The adaptive immune response consists of cellular immunity and humoral immunity. They both involve specialized cells for fighting off bacteria and viruses which is what the adaptive immune system is responsible for.
Answer:
The adaptive
Explanation:
I took the test 2021 on odyssey-ware
In the Virtual Lab, what are two observations you made about how changes in an ecosystem can impact populations?
Answer:
Changes in the environment can modify the amount of natural resources available for the populations to survive. Changes in the environment can separate a population and cause changes so intense that it prevents members of the population from establishing crossings.Explanation:
As we know, changes in the environment can be caused by the manipulation of human beings or even by natural processes and phenomena of nature. What matters is that these changes always provide an environmental impact that can be beneficial or harmful, but will always affect populations.
Environmental impacts can cause changes in the environment that will modify the amount of environmental resources (food, water, habitat) needed for the populations to survive. The reduction of these environmental resources can cause an increase in the mortality rate of populations.
In addition, environmental changes can separate a population and cause an evolution in each separate part to the point of generating new species and not allowing members of each species to establish crosses.
Answer:
Changes in the environment can modify the amount of natural resources available for the populations to survive.
Explanation:
What is fertilization?
Fertilization is the union of sperm and egg cells, forming a zygote that develops into an embryo through cell division.
Fertilization is the fusion of a sperm cell with an egg cell, resulting in the formation of a zygote. This process combines the genetic material from both the male and female gametes to form a single diploid cell, which then undergoes rapid cell division to develop into an embryo. In human reproduction, fertilization typically occurs in the fallopian tubes, where a sperm cell penetrates the egg cell's protective layer and fuses with it. The successful fertilization of an egg marks the beginning of pregnancy and initiates the developmental process that eventually leads to the formation of a new individual.
what is the relationship between animals and plants that process similar nitrients
Answer:
Both plant and animal cells absorb nutrients and convert those nutrients into usable energy. Animal cells absorb nutrients from food, while plant cells absorb energy from sunlight via a process called photosynthesis.
Which the following has the lowest ionization energy?
○ Br
○ Cl
○ F
○ I
Answer:A
Explanation:The answer is Br
Suppose that each β–adrenergic receptor bound to epinephrine converts 100 molecules of the G???? subunit to the GTP-bound form, G????s. If each molecule of activated adenylate cyclase produces 1000 molecules of cAMP per second, how many molecules of cAMP are produced in 10 seconds after the formation of a single complex between epinephrine and the β–adrenergic receptor? Assume the pathway is fully responsive.
Answer:
The correct answer is 10^5*10 molecules of cAMP are produced.
Explanation:
It is given that when each molecule of epinephrine combines with the adrenergic receptor the transformation of 100 molecules of G-alpha takes place into their stimulated GTP form, which further stimulates adenylate cyclase. This stimulated adenylate cyclase further give rise to 1000 molecules of cAMP per second.
Therefore, in one second the production of 100 * 1000 or 10^5 cAMP molecules is taking place.
Thus, in 10 seconds, the production of 10 * 10^5 cAMP molecules will take place.
After epinephrine binds to a single β-adrenergic receptor, it activates 100 Gαₛ units, which each activate adenylate cyclase to produce 1000 cAMP molecules per second. Over 10 seconds, this results in the production of 1,000,000 molecules of cAMP.
The question concerns the biochemical pathway by which the hormone epinephrine activates the production of cyclic AMP (cAMP) in cells. When epinephrine binds to the β-adrenergic receptor, it activates a G-protein, which in turn activates adenylate cyclase. This activation leads to the conversion of ATP to cAMP. According to the supplied information, each β-adrenergic receptor bound to epinephrine activates 100 Gαₛ units, and each molecule of activated adenylate cyclase produces 1000 molecules of cAMP per second.
To calculate the total cAMP produced after 10 seconds, we multiply the number of Gαₛ units activated by the cAMP production rate of adenylate cyclase, and then by the duration of 10 seconds:
100 (Gαₛ units) x 1000 (cAMP per second) x 10 (seconds) = 1,000,000 cAMP molecules
Therefore, 1,000,000 molecules of cAMP are produced in 10 seconds after the formation of a single complex between epinephrine and the β-adrenergic receptor.
Simon makes poor food choices and does not exercise. When Simon goes to the doctor for a checkup, his doctor
tells him he is obese What is his doctor most likely concerned he will develop?
A.diabetes
B.asthma
C.cancer
D.color blindnes
Answer:
A Diabetes
Explanation:
A gene is a segment of DNA on a chromosome. How are genes related to the proteins made by a cell?
A.
The structure of the genes in a cell determines the structure of the proteins made by the cell.
B.
All genes in a cell have the same exact structure, but each gene codes for a different set of proteins.
C.
All genes in a cell have the same exact structure, so all genes code for the same exact set of proteins.
D.
The structure of the genes in a cell is unrelated to the structure of the proteins made by the cell.
The structure of the genes in a cell determines the structure of the proteins made by the cell.
What is DNA?DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA.
Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA). Mitochondria are structures within cells that convert the energy from food into a form that cells can use.
The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same in all people.
Therefore, The structure of the genes in a cell determines the structure of the proteins made by the cell.
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2. When there is an imbalance in a body system, and the body cannot maintain homeostasis, how might other systems respond?
Answer:
Read the explanation
Explanation:
A very common type of imbalance in the human body that disrupts homeostasis is diabetes. In the body of a diabetic, the endocrine system has a hard time maintaining proper glucose levels in the blood. So, a person has to monitor their glucose levels very carefully, to make sure that they stay healthy. However, this is only one of many examples. I hope this helps you!
What do all protists have in common? Check all that apply.
Protists are organisms composed of one or more cells.
Protists’ cells contain a nucleus.
Protists live in dry environments.
Protists produce their own food from water.
Protists reproduce asexually or sexually.
Protists live in moist environments.
Answer: The answers are A,B,E,F
Explanation: because i listened to the wrong answers and they showed me what i had got wrong and it showed me the answers to the questions! IF YOU GUYS GET IT RIGHT LIKE THE ANSWER !! HOPE THIS HELPED!
Protists are eukaryotic organism that contains one or more cells and has a nucleus. They reproduce by both types of methods and live in moist environments. Thus, options A, B, E, and F are correct.
What are protists?Protists are one of the kingdoms along with plants, animals, and fungi. They are eukaryotic species that may contain more than one cell. They also contain a nucleus like the other eukaryotic cell and hence exhibits similar cellular processes.
They can reproduce through both modes of reproduction to produce progeny. Protists live in moist environments that are suitable places for reproduction and growth.
Therefore, the protists have a nucleus, can reproduce through both methods, and live in moist environments.
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Mites often attach themselves to flies, wasps, or beetles for free transportation. The flies, wasps, and beetles are not impacted. What type of relationship is this?
Answer:
It is Mutualism
The episome in an Hfr strain is inserted near the trp (tryptophan operon) locus. This Hfr strain is grown with an F- Trp- strain. From this mating, we isolate an F+ Trp+ strain that can readily impart the Trp+ phenotype to F- Trp- strains, but no other traits are ever transferred. (When the original Hfr strain is mated with F? strains, traits other than Trp+ can be transferred, although at lower frequency than Trp+.) What most likely has happened?
Answer:
It is a typical Hfr mating, as trp gene is very closed to F plasmid, the Hfr bacteria donates its trp gene along with F plasmid and then process is disturbed.
Explanation:
"The most likely scenario is that a recombination event has occurred between the episome of the Hfr strain and the bacterial chromosome of the F- Trp- strain, resulting in the integration of the trp (tryptophan operon) locus into the F factor, creating an F' (prime) plasmid.
This F' plasmid carries the trp+ gene, which confers the ability to synthesize tryptophan, and can be transferred to other F- Trp- strains through conjugation.
Here's the explanation and logic behind this
1. The Hfr strain has an episome (a type of F factor) inserted near the trp locus on its chromosome. This allows for the transfer of chromosomal genes, including trp, to an F- strain during conjugation.
2. When the Hfr strain mates with an F- Trp- strain, the trp+ gene can be transferred to the recipient strain via conjugation. Since the trp locus is near the origin of transfer on the Hfr strain's chromosome, it is transferred first and with higher frequency.
3. The F' plasmid is formed when the trp+ gene from the Hfr strain is incorporated into the F factor through a recombination event. This F' plasmid can replicate independently of the bacterial chromosome and carries the trp+ gene.
4. The F' plasmid can then be transferred to other F- Trp- strains through conjugation, imparting the Trp+ phenotype. Since the F' plasmid is smaller than the entire bacterial chromosome, it is transferred more efficiently than the larger segment of the chromosome that would be transferred by the Hfr strain.
5. The fact that no other traits are ever transferred along with the Trp+ phenotype suggests that the F' plasmid does not carry any other chromosomal genes from the original Hfr strain. This is consistent with the observation that the trp locus is the only gene that is consistently transferred at a high frequency.
6. The original Hfr strain can still transfer other traits to F- strains, but these traits are located further from the origin of transfer on the chromosome and are therefore transferred at a lower frequency. This is because the further away a gene is from the origin of transfer, the less likely it is to be completely transferred before the mating pair separates.
In summary, the formation of an F' plasmid carrying the trp+ gene through recombination best explains the observed results of the mating experiments. The F' plasmid can efficiently transfer the Trp+ phenotype to F- Trp- strains without transferring other chromosomal traits."
A 20 – year old man who has cystic fibrosis has a sister who is planning to have a child. The man encourages his sister to see a genetic counselor. What do you think the man’s reasons are for giving such advice?
Answer:
Man encourages his sister to see a genetic counselor in order to find out that she has the genetic disease or not.
Explanation:
Cystic fibrosis is genetic disease that can transfer from parents to their offspring. This is a very dangerous disease which decrease the life span of patient and the patient die in early stages of life. The man with Cystic fibrosis disease encourage his sister to go to the genetic counselor to find out the presence of disease in her blood because she is planning a baby and we know that this is a hereditary disease so if she has this disease it will transfer to her child.
Final answer:
The man with cystic fibrosis advises his sister to see a genetic counselor to assess the risk of her potential child inheriting the disease, as cystic fibrosis is recessively inherited and genetic counseling can provide valuable risk assessment and information for family planning.
Explanation:
The 20-year-old man with cystic fibrosis is likely suggesting genetic counseling to his sister because cystic fibrosis is a recessively inherited genetic disorder. This means that while he expresses the condition, his sister could be a carrier of the cystic fibrosis gene mutation without showing symptoms. If she and her partner are both carriers, there is a chance their child could inherit the disorder. A genetic counselor can help assess this risk by evaluating family history and possibly conducting genetic tests. This would enable his sister to make informed decisions about family planning and prepare for any necessary medical interventions or lifestyle adjustments should the child be at risk for cystic fibrosis.
Explain how waves, tides, and sea level influence the physical structure of the shore
Answer:
The shoreline is affected by waves (produced by wind at sea) and tides (produced by the gravitational effect of the moon and sun). Waves are caused by wind. Wave height in the open ocean is determined by three factors. The greater the wind speed the larger the waves.Explanation:
Final answer:
Waves and tides influence the physical structure of the shore by causing erosion and deposition, resulting in distinctive coastal features. Understanding how waves, tides, and currents interact is essential in managing coastal erosion and protecting shorelines.
Explanation:
Waves play a crucial role in shaping shorelines through erosion by transporting sand on and off beaches, along beaches, and carving structures along the shore. Features formed by wave deposition include beaches, sandbars, and spits. Shorelines can be protected from wave erosion through measures like building seawalls, planting vegetation, and nourishing beaches with sand.
Tides contribute to coastal erosion and deposition as they cause the shoreline to migrate landward and seaward due to the rhythmic rise and fall of sea level. Tidal mudflat depositional environments are influenced by strong tidal currents and have specific characteristics like submerged areas during high tide and smaller particles.
The combined effect of waves, currents, and tides leads to gradational processes in the coastal zone, with abrasion being a significant factor caused by sediment carried by water scraping against shore materials, especially under the impact of breakers.
Which feature of chytrids makes them different from the other types of fungi?
the material that strengthens their cell walls
the special digestive material they release
their use of budding to reproduce
their ability to live in dry environments
PLZ HELP!!! 30 PTZ!!
Answer:
A
Explanation:
Wild-type E. coli grow best at 37 but can grow efficiently up to 42 . An E. coli strain has a mutation of the sigma subunit that results in an RNA polymerase holoenzyme that is stable and transcribes at wild-type levels at 37 . The mutant holoenzyme is progressively destabilized as the temperature is raised, and it completely denatures and ceases to carry out transcription at 42 . Relative to wild-type growth, characterize the ability of the mutant strain to carry out transcription at: 37 degrees A. organism does not transcribe gene, B. organism transcribes slowly,C. organism transcribes a wild type, D. organism transcribes faster than a wild type What term best characterizes the type of mutation exhibited by the mutant bacterial strain?
Answer:Temperature- Sensitive Mutation, C
Explanation:
AT 37°C , The organism transcribe a wild type--C.
The type of mutation exhibited by the mutant bacterial strain is a Temperature- Sensitive Mutation. This is because at different temperatures, the organism transcribes differently ie transcribes at wild-type levels at 37°C and completely denatures and ceases to carry out transcription at 42°C .
Ras is a GTP-binding protein that is often defective in cancer cells. A common mutation found in cancer cells causes Ras to behave as though it were bound to GTP all the time, which will cause cells to divide inappropriately. From this description, the normal Ras gene is _____. a proto-oncogene. an oncogene. a proto-tumor suppressor gene. a gain-of-function mutation. a tumor suppressor.
Answer:
a proto-oncogene.
Explanation:
The protooncogenes are genes capable of causing cancer when they are activated to oncogenes by mutations that dysregulate their functions. In this case, the mutation in the Ras is a GTP-binding protein convert it to an oncogene that stimulates the cell proliferation mechanism
.
Final answer:
The normal Ras gene is an oncogene that can cause uncontrolled cell division and potentially cancer when mutated.
Explanation:
The normal Ras gene is an oncogene. Oncogenes are genes that have the potential to cause cancer when they are mutated. In the case of the Ras gene, when it is mutated and behaves as though it were bound to GTP all the time, it causes uncontrolled cell division, leading to inappropriate cell proliferation and potentially the development of cancer.
Select the scenarios that describe a biotic factor that is density dependent. Select the TWO answers that are correct.
1.Fir trees grow in number, increasing the amount of food available for moose.
2.Heavy and continuous rains flood the land, submerging habitats.
3.Lightning strikes a tree and begins a fire that clears the land.
4.Ticks infesting moose weaken the moose's health and reproductive success.
5.Frigid temperatures flow into the area, causing hypothermia and death.
The scenarios that describe a biotic factor which is density dependent are: fir trees growing in number, increasing the amount of food for moose and ticks infesting moose, weakening the moose's health and reproductive success. They are considered density-dependent factors as their effects change based on the population size. They are biotic factors as they pertain to living features of the environment.
Explanation:In the context of ecology, density-dependent factors include any factor whose effects on the population increase or decrease depending on the size of the population. Therefore, the correct answers are:
Fir trees grow in number, increasing the amount of food available for mooseTicks infesting moose weaken the moose's health and reproductive successIn these instances, the factor's impact changes according to the population size (number of moose). In the first scenario, more food becomes available when the fir population expands, which would generally allow for a growth in the moose population. In the second scenario, as the moose population grows, the tick infestation becomes more severe, harming the moose population's health and reproduction.
These are biotic, density-dependent factors because the impact changes based on the number of organisms and the factors are living features of the environment.
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Fill in the blanks with the answer that correctly completes the sentence below.
_______ and _______ can only obtain food through consuming other organisms.
A.
Euglena and amoebae
B.
Volvox and euglena
C.
Amoebae and paramecia
D.
Paramecia and volvox
Answer:
C. Amoebae and paramecia is the answer.
Explanation:
The correct sentence completion is c) "Amoebae and paramecia", as they are the organisms that can only obtain food through consuming other organisms unlike Euglena which can both perform photosynthesis and take up nutrients heterotrophically.
Amoebae and paramecia can only obtain food through consuming other organisms. The correct completion for the sentence is: c) Amoebae and paramecia can only obtain food through consuming other organisms. This indicates that both amoebae and paramecia are heterotrophic organisms, which means they do not produce their own food through photosynthesis but instead rely on other sources for nourishment.
In contrast, Euglena, as mentioned within the Euglenozoans information, can operate as mixotrophs. When light is available, they can perform photosynthesis, but in its absence, they switch to heterotrophy and take up organic nutrients from their environment. Therefore, they would not fit this sentence as they are capable of photosynthesis under certain conditions.
describe what happened to China's air pollution between December and March and explain why IN YOUR OWN WORD (hint*, use what the video says about cars and factories)
Answer:
The air pollution in china decreases due to less usage of transportation and shutdown of industries.
Explanation:
From December to march, transportation and industrial work is greatly affected due to the corona virus. Due to reduction of activities in both transportation and industries, there is a lot of decrease occurs in the air pollution. We know that smoke produce by vehicles and industries are the main cause of pollution so that's why air pollution decreases between December to march..