Potential energy; energy created by the position of an object.
Compare and contrast the structure of prokaryotic and eukaryotic cells
Prokaryotic and eukaryotic cells differ in various ways, including the presence of a true nucleus and membrane-bound organelles in eukaryotic cells.
Explanation:The structure of prokaryotic and eukaryotic cells differ in various ways. While both types of cells have a plasma membrane, cytoplasm, genetic material, and ribosomes, eukaryotic cells are typically larger and more complex. Eukaryotic cells have a true nucleus, membrane-bound organelles, and multiple chromosomes, whereas prokaryotic cells lack a nucleus and membrane-bound organelles and generally have a single, circular chromosome.
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After millions of years, nonliving chemicals will become living.
True,
False.
the answer for this question is false.
Which most likely happen to the population of deer in 1963
A. The population increased its death rate.
B. The population exceeded past carrying capacity.
C. The population crashes down to 0.
D. The population steadily increased to get closer to carrying capacity.
Answer:
The correct answer is D. The population steadily increased to get closer to carrying capacity.
Explanation:
Carrying capacity is the maximum capacity of an environment to support a population of species. Carrying capacity denotes the highest population size of a species in an environment and population beyond this carrying capacity cannot be supported by any ecosystem because of the limiting of resources, area and increasing competition due to overgrowing population.
In this graph, the population is increasing steadily to get closer to carrying capacity and once it reaches the carrying capacity the rise in population will stop and then the graph will look like logistic growth graph.
So, the correct answer is D. The population steadily increased to get closer to carrying capacity.
Answer:
The population steadily increased to get closer to carrying capacity.
Explanation:
Which good, once consumed by an individual doesn’t, reduce the ability of another individual to consume it? A(n) good is a product that, once consumed by an individual, doesn’t reduce the ability of another individual to consume
The best answer would be:
1. Private goods
2. Public goods
Private goods are scarce, or in other words very limited. These are goods that are owned by an individual that is obtained in exchange of money. Now this limits the ability of another to consume it. Private goods are categorized as excludable and rivalrous.
Because it is limited, not anyone can get it, thus creating competition.
Public goods are the opposite. Anyone can use it and anyone can obtain it. For example, air, public defense, streetlights. All these things are obtainable and even when one will consume, there is more for others to make use of.
I hope this did not confuse you more. Good luck!
Answer:
Public good
Explanation:
Public good is a property belonging to some Estat, financed by public money. The main characteristic of public goods is that they do not establish rivalry and exclude no one. This means that it is impossible for a public good user to exclude other users from benefiting from the good. It also means that when a person uses the good, he does not prevent others from using it as well.
PLZ ANSWER ASPA which of the following is an example of natural selection? Explain why. A. cricket frogs prefer to sleep during the day,while red-eyed tree frogs prefer to sleep during the night. B. rabbits with a mutation for longer,thicker fur survive an unusually cold winter,while many normal rabbits do not survive. C. to produce a more desirable fruit,a farmer crosses a tree that produces sweet oranges with a tree that produces large organges. D. pesticides are sprayed in a field, resulting in an increase in crop growth and a decrease in insect population.
Final answer:
Option B illustrates natural selection, where rabbits with a heritable trait - longer, thicker fur - survive an exceptionally cold winter better than rabbits without this mutation, leading to a genetic shift in the population.
Explanation:
The example of natural selection provided in the student's options is B. rabbits with a mutation for longer, thicker fur survive an unusually cold winter, while many normal rabbits do not survive. This situation illustrates natural selection because it demonstrates an environmental pressure - the unusually cold winter - which leads to differential survival based on a heritable trait - the longer, thicker fur. As a result, rabbits with the mutation are more likely to survive and reproduce, passing on the gene for thicker fur to the next generation, thereby changing the genetic make-up of the rabbit population over time.
Two lines perpendicular to one another can represent a _____-dimensional coordinate system.
A. 2
B. 3
C. 4
B would be your answer, let me know your scores.
Answer:
B. 3
Explanation:
The Cartesian plane consists of two perpendicular lines called x-axis and y-axis which, together with the intersection point (the origin), define a two-dimensional coordinate system that makes it possible to specify the location of points in the plane. Following this same line of reasoning, to describe the location of a point in space we need to introduce a third dimension into the two-dimensional system. For this, from the Cartesian plane, we define a z axis (perpendicular to both axes) passing through the origin which, together with the x axis and y axis will constitute our three-dimensional coordinate system.
Accordingly we can say that two perpendicular lines can represent a three-dimensional coordinate system.
Osmosis is usually thought of as diffusion of
A-sugar out of a cell.
B -salt into a cell.
water through a cell membrane.
smells through the air.
The correct answer is: [C]: " water through a cell membrane " .
____________________________________________________
Is the Venus fly trap a plant? If it is why can't it make it's own food?
The Venus flytrap is a species of plant. It naturally occurs in areas such as bogs and marshes with very little nutrients such as nitrogen. As such, it has evolved to capture prey such as insects, spiders, and other invertebrate and small vertebrates to digest, allowing it to gain nutrients from its food. Hope this helped!
Explain why scientist believe the warm climates provide greater biodiversity
Warm temperate climates are classified as a climate region with distinctive summer and winter seasons. This kind of climate help in maintaining constant body temperature.
Biological diversity (biodiversity) refers to the diversity of life throughout all levels of biological organization, including not only the total number of life forms found in a given region but also the scope of variations among those forms.
Biodiversity encompasses everything from genetic variation within a single simple population to the diversity of ecosystems throughout the world.
Scientists believed the warm climates provide greater biodiversity because there is an abundant amount of rainfall seasonally in the warm climatic region to increase crop productivity which in turn results in greater Biodiversity.
Also, in the warm-climate region, species are exposed to greater genetic diversity, this makes the species to be adapted to various conditions such as resistance to climate change, therefore increasing Biodiversity.
In conclusion, from the above explanation, we now have a clear understanding on how warm climates improve biodiversity.
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Which of the following biological processes only occurs in organisms that are able to reproduce sexually?
In the first stage of sexual reproduction, "meiosis", the number of chromosomes is reduced from a diploid number (2n) to a haploid number (n). During "fertilization", haploid gametes come together to form a diploid zygote and the original number of chromosomes is restored.
Meiosis is the answer
Translation involves the synthesis of _________ and occurs in the _________.
Translation involves the synthesis of proteins and occurs in ribosomes outside the nucleus, guided by the genetic code. Translation is the process of protein synthesis where proteins are made at ribosomes based on the information in mRNA. This involves assembling amino acids in the correct sequence as directed by mRNA codons, with the help of tRNA molecules.
Explanation:Translation involves the synthesis of proteins and occurs in the ribosomes. This process is one of the two main stages of protein synthesis, the other being transcription. During translation, the sequence of bases in messenger RNA (mRNA) is decoded to build a polypeptide, or protein, using a genetic code that dictates the sequence of amino acids in the protein. The ribosomes, where translation occurs, are complexes made up of rRNA and proteins located outside the cell nucleus.
Translation occurs in three phases: initiation, where the ribosome assembles around the mRNA; elongation, where amino acids are added sequentially to the growing polypeptide chain; and termination, where the completed polypeptide is released. Each amino acid is brought to the ribosome by a transfer RNA (tRNA) molecule that has an anticodon sequence to pair with the mRNA codon, ensuring that the correct amino acids are incorporated into the protein.
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Fred wants to summarize mitosis in the cell cycle. Which statement describes mitosis?
Mitosis is when the cell begins to divide and the cell membrane and the cytoplasm split apart and the chromesomes that act as a nuclei get replaced and a nucleus is formed in 2 identical copies of a diploid cell (daughter cells )
Answer:Mitosis includes several steps that occur after the DNA has been copied but before the cytoplasm is divided.
Explanation:It cant break apart then copy the DNA.That does not make sense.
what are the main differences between living cells and viruses?
Living cells can exist on themselves, like bacteria or part of an larger organism.
Viruses are smaller than the cell and need a living host to reproduce.
Flesh-eating parasitizing maggots are the offspring of the fly, Ormia ochracea, which invaded Hawaii from North America. The adult flies follow the chirps of a calling cricket and then deposit wriggling maggots onto the cricket's back. The maggots burrow into the cricket, and emerge, a week later, killing the cricket in the process. Between 1991 and 2001, there were documented major declines in the island's cricket population. In one study, 30% of calling males were infested with the parasite, and in 2001, the island was virtually silent. But in 2003, the cricket population had rebounded. Crickets were back but they were silent crickets! What is the BEST explanation of how this happened?
The silent crickets survived because they weren't located by the Ormia ochracea flies. When these silent crickets reproduced, the 'silent' trait was passed on to the offspring. Over time, the cricket population rebounded, but with crickets that were silent due to this evolved defense mechanism against the lethal parasites.
Explanation:The best explanation for the revival of the silent cricket population relates to evolutionary adaptation and behavioral changes brought on due to parasite infestation. The silent male crickets likely survived the parasite infestation because, not producing any sound, they were not detected and targeted by the Ormia ochracea flies whose maggot offspring are deadly for the crickets. Essentially, the flies were unable to locate the silent crickets.
These silent males reproduced with available females, passing on the 'silent' trait. Over time, the cricket population rebounded, but these new generation of crickets had evolved to be silent as a defense mechanism against the fly parasites. This demonstrates a clear case of natural selection, where the trait providing a survival advantage in a given environment increases in frequency within a population over successive generations.
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Adaptation through natural selection led to the rebound of the cricket population in 2003. Silent crickets, less noticeable to the deadly flies, survived better and passed on more of their genes, resulting in a predominantly 'silent' cricket population.
Explanation:The best explanation for the rebound of the cricket population by 2003 is the concept of adaptation due to natural selection. Cognizant of the dire threat presented by the maggots released by flies, some of the crickets likely underwent mutation that silenced their chirps, which renders them less noticeable to the flies. These silent crickets could survive better, reproduce more, and pass on more of their genes, including potentially the gene causing silence, to the next generation. This process of natural selection would eventually lead to a predominantly 'silent' cricket population. Elaboration The rebound in the cricket population aligns with how species adapt to predation pressures. If a species is strongly preyed upon, individuals with traits that make them less likely to be killed by predators will pass on their genes more frequently, leading to a population change.
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Identify the types of genetic recombination.
______occurs in metaphase I.
______occurs during sexual reproduction.
______is random chromosome alignment resulting in variation.
_______occurs in prophase I.
_______fuses gametes to form offspring with genes from each parent.
______exchanges genetic information between non-sister chromatids.
Genetic recombination includes crossing-over during prophase I, random chromosome alignment in metaphase I, and fertilization, where gametes fuse to form uniquely genetic offspring. Crossing-over is the exchange of genetic material between non-sister chromatids.
Explanation:The types of genetic recombination include:
Crossing-over occurs in prophase I.Genetic recombination also occurs during sexual reproduction.Random chromosome alignment resulting in variation occurs in metaphase I.Crossing-over, which fuses gametes to form offspring with genes from each parent, occurs in prophase I.Fertilization fuses gametes to form offspring with genes from each parent.Crossing-over exchanges genetic information between non-sister chromatids.During prophase I, homologous chromosomes pair up and exchange segments of genetic material through crossing-over, leading to new combinations of genes on each chromosome. This exchange of genetic material between non-sister chromatids of homologous chromosomes creates unique gene combinations and contributes to the genetic diversity of offspring.
In metaphase I, the random alignment of recombined chromosomes on the metaphase plate generates additional genetic variation.
Finally, after meiosis, the process of fertilization combines the diverse gametes to produce genetically unique offspring.
What do scientists call organisms which obtain energy from the foods that they consume
Organisms that obtain enegy from the food they consume is called a heterotroph or consumer
In the human, the allele for brown eyes, B, is dominant over the allele for blue eye,b. Which combination of alleles shown below could result in a person with blue eyes?
The Cold War resulted from?
The European international system collapsed, with the Second World War, and the results of that war led to radical transformations in the form of the distribution of power at the global level. The European countries, "the poles of the old regime, the Axis and the Allied Powers" emerged from the Second World War exhausted, economically, militarily and politically. , And then fell positions in the ladder hierarchy of international forces, while emerged two new global poles, the United States of America and the Soviet Union, and in the new situation are only able to determine the image of the entire international system, with their own capabilities. Thus, the international pattern shifted to its image, which became known as the bipolar international order. .
The sectarian strife between the two poles has had a profound effect on deepening the differences between them, and in the emergence of a new variable that has played a prominent role in the international struggle, the ideological factor. This sectarian dispute has divided the developed world into two main blocs: the Western "capitalist" bloc, The United States of America, the West European countries, Canada and Japan, and the communist bloc, led by the Soviet Union and by the Eastern European countries. These are both the NATO and the Warsaw Pact.
Both poles in their struggle with the other on the land of the Third World resort to indirect means, in order to avoid direct armed contact between them. Examples include diplomacy and economic propaganda, alliances, pro-government regimes, and the overthrow of hostile regimes. All this has resulted in the so-called Cold War.
This concept was first used by Prince Juan Manuel in the fourteenth century and then by the American economist Bernard Baruch "1870-1965" in early 1947 and became a common expression with the American journalist Walter Lippman (1889-1974) In general, the state of tension between the western and eastern blocs formed in 1945 was described in the wake of World War II.
This conflict has spread since the end of the Second World War, from the mid-1940s to the end of the 1980s. The collapse of the Soviet Union in 1991 can be seen as the end of the Cold War, although many of the ideological bases of this war had disappeared before.
Answer:
D. lack of trust between the United States and the Soviet Union
Explanation:
I just did it open ape.x its correct
ANSWER CHOICES
A. aggressive British behavior in Europe
B. aggressive Soviet behavior in the Middle East
C. U.S. nuclear power
D. lack of trust between the United States and the Soviet Union
Cystic fibrosis is a lethal, autosomal recessive genetic disorder. Which statement BEST explains how cystic fibrosis is maintained in the gene pool? A Organisms that are heterozygous can pass on only the dominant allele. B Organisms that are homozygous-dominant pass on either dominant or recessive alleles. C Organisms that are heterozygous can pass on either dominant or recessive alleles. D Organisms that are homozygous-recessive pass on only the dominant allele.
The right answer is : A Organisms that are heterozygous can pass on only the dominant allele.
Cystic fibrosis is a genetic disorder affecting the glandular epithelia of many organs. It is the most common lethal genetic disease with autosomal recessive inheritance in Europoid type populations, whereas it is very rare in African and Asian populations.
For a heterozygous subject, he has a recessive allele (the mutated allele) and a dominant allele (normal). In this subject the disease is not expressed as it is recessive compared to the normal allele, therefore, only the dominant allele will be expressed in subjects heterozygote for cystic fibrosis.
ANSWER THIS ASAP!! A biome associated with fluctuations in water salinity will MOST LIKELY be found near the letter
A) A
B) B
C) C
D) D
it is c because there is land and water near it. i think
Answer:
The answer is C
Explanation:
A and B denote zones of river channels. In those zones, the river channels out to the sea. While A seems to be far from the sea coast, B is closer to the sea.
Zone D is oceanic zone and here the salinity will not fluctuate
C is zone where the river water mixes with the sea. This is termed as estuary where there are partially enclosed coastal bodies as there is flow of river or stream into the sea. Here the river freely connects with the sea. In other words, we can say this zone is transition place for the river environment and maritime environment. If biomes are situated here, it is sure to experience a mixup of saline water and river water bringing in fluctuations in salinity.
Which layer of the earth’s atmosphere do we live in
Humans live in the layer of the atmosphere referred to as the troposphere. (Most of the mass of the atmosphere can be found in the troposphere.)
Final answer:
We live in the troposphere, the lowest layer of the Earth's atmosphere, which extends up to about 10 kilometers from the Earth's surface and where most human activities and weather events occur.
Explanation:
The layer of the Earth's atmosphere in which we live is the troposphere. It extends from the Earth's surface up to about 10 kilometers (6 miles) in altitude. The troposphere contains about 80% of the Earth's atmosphere by mass and is where most weather events originate. Virtually all human activities occur within this layer, including the peak of Mt. Everest which is the tallest mountain on the planet at about 5.6 miles (9 km) high.
Describe 2 ways that Newton’s Laws can apply in a car crash.
newtons first law : an object (example a car) at rest will remain at rest and an object in motion will stay in motion until acted upon by an unbalanced force.
newtons second law : force ( if the car has an increase in mass, you must increase force to have the same resulting acceleration).
Newton's laws of motion explains the magnitude and direction of the forces acting on the car in a car crash.
What are Newton's law of motion?Newton's law of motion describes the motion of objects.
There are three Newton's laws of motion.
The second and third laws of motions can be used applied in a car crash.
Newton's third law of motion law of motion states that action and reaction are equal and oppositel.Newton's second law of motion states that a force applied to an object at rest causes it to accelerate in the direction of the applied force.In a car crash, the cars receive an equal but oppositely acting reactionary force to the force they apply.
Also, in a car crash, the object hit by a car accelerates the object that it crashes on.
Therefore, in a car crash, Newton's law of motion explains the magnitude and direction of the forces acting on the car.
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The child of a short mother with black hair and a tall father with red hair is tall and ugh black hair. This occurred because
Mother: Dominate trait is black hair, Recessive trait is short.
Father: Dominate trait is tall, Recessive trait is red hair.
Child has all traits, but only the dominate traits show through.
why is then a tornado potentially so destructive
A tornado is potentially so destructive due to its high wind speeds and ability to cause significant damage to structures and landscapes.
- High wind speeds: Tornadoes are characterized by extremely high wind speeds, often exceeding 200 miles per hour (320 kilometers per hour), which can wreak havoc on anything in their path.
- Structural damage: Tornadoes can easily tear apart buildings, homes, and other structures, leading to extensive property damage and posing a significant risk to human life.
- Projectile debris: Tornadoes can hurl debris at high velocities, turning everyday objects into deadly projectiles that can cause further destruction and injury.
- Large size and reach: Some tornadoes can be several miles wide and travel long distances, covering vast areas and affecting numerous communities along their path.
- Unpredictability: Tornadoes can form rapidly and change direction unpredictably, making it difficult for residents to prepare or evacuate in time, increasing the potential for destruction and loss of life.
- Overall, the combination of high wind speeds, structural damage, projectile debris, large size, and unpredictability makes tornadoes incredibly destructive natural phenomena that can have devastating consequences for affected areas.
The complete Question is given below:
Why is then a tornado potentially so destructive? explain ?
someone please help with this question!!!! Describe how an indicator can be used to determine if starch diffuses through the membrane into the beaker i need help with this hw question
Add starch indicator solution to the water in the beaker. If the indicator solution changes color than starch is present.
An iodine indicator can be used to test whether starch has diffused through a membrane into a beaker by reacting with starch present to produce a blue-black color. However, starch molecules are generally too large to pass through the membrane. The iodine molecules, which are smaller, can do so and react with any starch within the bag.
Explanation:One can use an indicator such as iodine to test whether starch has diffused through the membrane into the beaker. Iodine reacts with starch to produce a blue-black color, serving as a clear visual indicator of the presence of starch. If the beaker's solution turns blue-black after adding iodine, this would suggest that starch has indeed diffused through the membrane.
However, you must remember that the dialysis tubing simulates a semi-permeable membrane, and larger molecules like starch often cannot pass through. The iodine, on the other hand, being a smaller molecule, can pass through the membrane and react with any starch present inside the bag to give the blue-black color.
To interpret the results, if the surrounding water in the beaker turns blue-black upon adding iodine, it can be inferred that starch has diffused out of the membrane, though unlikely. But if the color change is only observable within the dialysis bag, the starch did not pass through the membrane and has instead reacted with iodine that diffused into the bag.
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The graph shows the number of calories two people burned while they perform various exercises for one hour. Which conclusion is supported by the graph?
1 ) The 200-pound person burns more calories per hour doing aerobics than doing any other exercises shown.
2 ) The 160-pound person burns about 50 calories per mile while jogging.
3 ) The 200-pound person would need to play volleyball for three hours to burn the same number of calories as he burns in one hour of basketball.
4 ) The 160-pound person burns about twice as many calories jogging as she does walking.
It could be number #3
Answer:
The correct statement is option 4, that is, the 160-pound person burns about twice as many calories jogging as she does walking.
Explanation:
The statement 1st is not correct as one can observe from the graph that the 200-pound individual burns more calories in an hour by doing jogging and playing basketball than performing aerobics.
The 2nd statement is also not correct as one can see that the 160-pound individual burns more than 50 calories per mile while doing jogging. The statement 3rd is also not correct as when a 200-pound individual plays volleyball for three hours then about 1000 calories will get burned, as in 1 hour of playing 350 calories are burned.
The last statement, that is, the fourth one is correct as one can see from the graph that a 160-pound individual burns approximately 600 calories by doing jogging and she burns 300 calories while walking.
are this answers right?(13 points)
Which statement best describes the arrangement of silicon-oxygen tetrahedra in clay minerals?
A.random
B.sheets(answer)
c.spherical
d.tightly packed
(2)What is the main difference between sulfate minerals and sulfide minerals?
A
Sulfates lack sulfur compounds, whereas sulfides contain sulfur compounds.
B
Sulfates contain sulfur-oxygen compounds, whereas sulfides contain sulfur-metal compounds.
C
Sulfates contain sulfur-carbon compounds, whereas sulfides contain sulfur-oxygen compounds.(answer)
D
Sulfates contain sulfur compounds, whereas sulfides lack sulfur compounds.
(3)Carbon varies greatly as a mineral. It can form minerals as different as graphite and diamond.
1Points
Which descriptions explains carbon's versatility?
Select the 2 correct answers.
A
Due to its atomic structure of four valence electrons, carbon can combine easily with other elements.
B (answer)
Carbon's versatility is due to the specific conditions where it is found - temperature, pressure, and the presence of other silicate minerals with which it joins.
C
Carbon's ability to be weak or strong in different compounds is due to the number of valence electrons it shares.
D
Carbon always gives up all of its valence electrons, forming strong hydrogen bonds.(answer)
its the right anwsers
many different types of mutations can occur within the body. An individual experience a mutation that changes a base in a tRNA strand, but during translation the tRNA strand still creates the same protein. Which type of mutation is responsible for the change in the tRNA base
I guess the answer for this would be the DNA but i'm not sure tho, I haven't see this things since a long time.
Answer:
Silent mutation.
Explanation:
A silent mutation may be defined as a change in the single nucleotide base without any change in the amino acid and result in the formation of the same protein.
Mutation has changed a single base of tRNA strand but this does not change the protein product. This means the mutation has not changed the amino acid.
Thus, silent mutation is responsible for the change in the tRNA base
what is the neurotransmitter released at motor end plates by the axon terminals
In vertebrates, motor neurons release acetylcholine (ACh), a small molecule neurotransmitter, which diffuses across the synaptic cleft and binds to nicotinic acetylcholine receptors (nAChRs) on the cell membrane of the muscle fiber, also known as the sarcolemma.
Acetylcholine (ACh) is the neurotransmitter that is released at motor end plates by the axon terminals, triggering a series of reactions that lead to muscle contraction.
The neurotransmitter released at motor end plates by the axon terminals is acetylcholine (ACh). This release is triggered when an action potential travels down the motor neuron's axon, leading to the opening of voltage-gated calcium channels. As calcium ions enter the synaptic terminal, they facilitate the fusion of neurotransmitter-filled vesicles with the presynaptic membrane, permitting the release of ACh into the synaptic cleft.
Upon release, ACh diffuses across the synaptic cleft and binds to ACh receptors on the motor end plate. The binding of ACh to these receptors causes ion channels to open, allowing sodium ions to enter the muscle cell and initiating an end-plate potential. This depolarization then triggers an action potential that propagates along the sarcolemma, leading to muscle contraction.
Guard cells are responsible for allowing carbon dioxide to enter a plant. They also control the release of oxygen and water to the atmosphere. Based on this description, where are guard cells located? A. on the surface of leaves B. along the root system C. the interior portion of leaves D. within the stem
on the surface of leaves.
Answer: On the surface of leaves
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