Answer:
A a living thing that has undergone a mutation.
Explanation:
A mutagen is an agent that causes a mutation in DNA.
The correct option is B .
A mutagen is any physical or chemical agent that has the ability to induce changes in the DNA sequence of an organism. These changes, known as mutations, can alter the genetic information and may lead to various effects on the organism's characteristics or traits.
Mutagens can include chemical substances, radiation, and certain types of viruses that can directly damage the DNA molecule or interfere with its replication or repair processes. Mutagens are significant in the field of genetics and can have both beneficial and harmful effects on living organisms, depending on the context and the specific mutations induced.
Hence , B is the correct option
To learn more about mutagen , here
brainly.com/question/13837704
#SPJ6
Some birds look for food near cattle and other livestock. The movement of
the cattle churns up the ground, making insects available to the birds. The
cattle appear to be unaffected by the presence of the birds. What kind of
relationship exists between the birds and the cattle?
O
A. Parasitism
O
B. Commensalism
O
C. Predation
O
D. Mutualism
I think the answer is B. Commensalism. The cows are unaffected by the birds taking advantage of their stirring up the ground, while the birds benefit. Thus, this is not parasitism, while one organism benefits while the other is harmed, or preparation, where one organism kills the other for food, or mutualism, where both organisms benefit.
The answer is B. Commensalism
Hope this helps!
Commensalism relationship exists between the birds and the cattle.
In commensalism one organism is benefitted and other remain unaffected.What is commensalism?Commensalism is a relationship between two organisms in which one benefits from the other without causing harm to it. The commensal organism obtains food, shelter, locomotion or support.What are the relationship exist in nature?There are five main symbiotic relationships:
Mutualism,Commensalism,Predation, Parasitism,Competition.Hence, B option is correct.
To know more about relationships in environment here
https://brainly.com/question/14528343
#SPJ2
Protozoa are usually found in
Answer:
Protozoa's are usually found in fresh water and is free-living.
Explanation:
Hope my answer has helped you in any way!
Answer:
water
Explanation:
Which structure is the cytoplasm?
Answer:
It is basically the background of the cell where everything sits.
Match the enzymes to their role in the DNA replication process
Key enzymes in prokaryotic DNA replication include DNA polymerase III, helicase, DNA gyrase, single-strand binding proteins, and primase. DNA polymerase III synthesizes new DNA strands and proofreads them for errors, while helicase and gyrase unwind and relieve stress on the DNA helix. Primase generates RNA primers to start replication.
During the process of prokaryotic DNA replication, a variety of enzymes work in concert to ensure accurate copying of the genetic material. A fundamental enzyme in this process is DNA polymerase III, which adds nucleotides to build a new strand complementary to the template strand, while also proofreading and correcting any errors made during replication. Another essential enzyme is helicase, which unwinds the DNA double helix at replication forks. DNA gyrase helps relieve the stress caused by the unwinding of DNA. Single-strand binding proteins (SSBs) stabilize the separated DNA strands to prevent them from re-annealing. And finally, primase synthesizes a short RNA primer, which is necessary for DNA polymerase III to commence the replication process.
The replication mechanism also deals with the challenges presented by the antiparallel strands, creating leading and lagging strands. The latter is synthesized discontinuously in the form of Okazaki fragments, which are later joined together to form a continuous strand.
Note that while the discussion here focuses on prokaryotic DNA replication, similar but not identical enzymes play roles in eukaryotic DNA replication, and the overall processes are conserved across life forms.
What is the correct term for an area of rotating currents in an ocean?
When ocean currents combine, they create an area of rotating currents called a(n)
Answer:
thermohaline current = thermohaline circulation
name the glands associated with human digestive system
Answer: consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder).
We live in the Cenozoic era, and scientists know more about this era and the epochs it's divided into than any other time period. Why is this?
The Cenozoic era is the shortest and most recent era of all, the one that still lasts and we live in. The major reason why the scientists have by far the most knowledge about this era is exactly the fact that it is the most recent. Because it is the most recent era, the rock layers are better preserved, and in much lesser degree destroyed when compared to the previous eras. The fossils records are also much richer, as the fossils need longer periods of time to be destroyed, so there's an abundance of them. The other factor is that there a lot of remains in the most recent part of this era by the humans, which are also a nice representation of what has happened, how it happened, what were the living conditions etc.
Where is the energy in a sucrose molecule stored?
O
A. Inside the hydrogen atoms
O
B. Inside the carbon atoms
O
c. In the bonds between the atoms
O
D. Inside the protons
Answer:
c. In the bonds between the atoms
Explanation:
The energy in a sucrose molecule is stored in the bonds between the atoms.
Hope this helps!
The energy stored in the sucrose molecule is stored in the bonds between the atoms.
Option C
Explanation:
During photosynthesis the sugar molecules are synthesized with help of captured light energy. The bonds between the carbon atoms of sucrose molecule are the covalent bonds and during their breakdown they produces reduced co-factors like NAD and FAD into NADH and FADH2. These reduced cofactors transfer their electrons into electron transport chain which later help ATP synthase to catalyse the production of ATP. Hence the bonds which were made by utilising the photon energy of sun are responsible for the production of energy molecule ATP so the energy is stored in the the bonds between the atoms of sucrose molecule.
Which When measuring the volume of a liquid in a graduating cylinder, you measure_____.
at the top of the meniscus
the average between the volume at the top of and the bottom of the meniscus
from the bottom of the meniscus
from the exact top of the liquid
Answer:
Option C, from the bottom of the meniscus
Explanation:
The meniscus in a graduated cylinder represents the volume of the liquid being measured
The prime aim is to take the reading at the center of the meniscus whether it takes concave shape or convex shape
In case of water, the reading is taken from the bottom of the meniscus and in case of mercury the reading is taken from the top of the meniscus.
However, except mercury in most of the cases the reading is taken from the bottom of the meniscus. Hence, option C is correct
Which statement best describes the breakdown of food in the digestive system? Carbohydrate digestion starts in the stomach and protein digestion starts in the stomach. Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach. Carbohydrate digestion starts in the esophagus and protein digestion starts in the small intestine. Carbohydrate digestion starts in the small intestine and protein digestion starts in the esophagus.
Answer:
Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.
Explanation:
Digestion of carbohydrates start at the moth with the help of salivary amylase which is an enzyme that helps breakdown the polysacharrides found in food with carbohydrates.
Protein digestion on the other hand, begins in the stomach and the duodenum. The stomach releases the enzyme called pepsin, which help breakdown the proteins, with the aid of two other enzymes, chymotrypsin and trypsin which are enzymes released by the pancreas.
Answer:
B, Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.
Explanation:
plants that we recognize today spend the majority of their life in the
Answer:
they spend the majority of their life in the Seed phase
Answer:
Sporophyte phase.
Explanation:
The plants present today have sporophyte as the dominant stage of their life cycle. The sporophyte phase is the seed phase and serves to produce spores. Germination of spore leads to the formation of the less conspicuous gametophyte.
Example: flowering plants have dominant sporophyte and reduced gametophyte.
Archaebacteria use _____ for movement. celia flagella pili cell walls
Archaebacteria use flagella for movement.
How do archaebacteria move?Archaebacteria being unicellular, are extremely small. Their method of movement comes from an organelle known as the flagella and a process known as Brownian movement.
What is flagella in archaea?The archaeal flagellum is a unique motility apparatus distinct in composition and likely in assembly from the bacterial flagellum.
To learn more about Archaebacteria , here
https://brainly.com/question/2598723?referrer=searchResults
#SPJ2
A hill is made of rock particles of different sizes. Which of these agents of
erosion probably caused the hill to form?
A. Glacialice
B. Waves
C. Wind
D. Flowing water
Answer: The answer is A. Glacial Ice
Explanation:
Final answer:
Flowing water is the most probable agent of erosion responsible for the formation of a hill made of rock particles of different sizes, due to its capacity for erosion and deposition based on particle size and gravity's role in pulling it downhill.
Explanation:
A hill made of rock particles of different sizes is likely influenced by several agents of erosion. Among the listed options, flowing water is the most probable cause for the formation of such a hill. Flowing water can transport rock particles of various sizes through erosion and deposition processes. As water moves over land, it picks up smaller particles first, leaving behind larger particles which can accumulate to form a hill. Besides, water moving over steeper slopes increases erosion potential, contributing to the shaping of the landscape.
Although other agents like glacial ice, wind, and waves can also cause erosion, they are less likely to be responsible for the formation of a hill comprised of rock particles of mixed sizes. Glacial ice, for instance, typically forms more uniform deposits and has a distinct erosion pattern, including features like U-shaped valleys rather than hills mixed with varying particle sizes.
It is important to note that gravity also plays a role in the process of erosion by pulling water and ice downhill, which in turn shapes the earth's surface. Flowing water also contributes to the formation of distinctive geological features through the differential erosion of rocks with varying levels of erosion resistance.
Refer to the family pedigree shown here. In generation I, one parent is affected by the gene mutation and one parent isn't. In generation II, all three children are affected by the gene mutation. What can you conclude about this gene mutation?
A. All children born in future generations will be affected by this disorder.
B. This gene mutation is a dominant disorder.
C. This gene mutation is a recessive disorder.
D. The generation I mother is a carrier of this gene mutation.
Answer:
B. This gene mutation is a dominant disorder.
Explanation:
Since all the children in generation III do not have the disorder, there is no indication that all the children born in the future generations will be affected by this disorder.
The gene mutation appear dominant from the pattern of inheritance. The children in generation II are all affected because there are two dominant alleles for the disorder in the father. Some of the children in generation III do not have the disorder because only one allele is dominant in the mother, hence, the unaffected children inherited the non-dominant allele from the mother.
The gene mutation is not recessive, otherwise, not all the offspring in generation II are supposed to be affected for the disorder.
The mother in generation I cannot be a carrier because the disorder is a dominant one. There can only be heterozygous for a dominant disorder but they are usually phenotypically affected for the disorder.
The correct option is B.
Answer:
B. This gene mutation is a dominant disorder.
Oogenesis ultimately results in the production of how many cell(s).
Answer:
one cell
Explanation:
Oogenesis takes place in the outermost layers of the ovaries, ultimately resulting in the production of one cell.
Answer:
4 cells
Explanation:
Oogenesis ultimately results in the production of 4 cells.
Hope this helps!
Feel free to ask if you have anymore questions!
Which of the following is true of red blood cells?
A. They have multiple nuclei
B. Once created in bone marrow, they circulate for our lifetime
C. They live for only 120 days
D. They live for only about 20 days
Answer:
C. They live for only 120 days
Explanation:
Well, not exactly 120 days but they live for about 100-120 days. red blood cells are also called erythrocytes. Unlike other cells, they do not have a nucleus. The red blood cells circulate through the body for about 100 to 120 days and are eventually recycled. Their main function is to carry oxygen to the different parts of the body.
Answer:
C
Explanation:
Give an example of how a society can have an effect on scientific research.
Answer: generating new knowledge, improving education and increasing our quality of life
Explanation:
Cure for many kinds of cancer is attained through scientific research.
How a society can have an effect on scientific research?In medicine, we have come a long way. For almost all medical conditions we have a cure nowadays.Technologically we can easily compare the life we used to live 5 years before and the life we are living at present.Everything came out as a result of successful scientific research.Scientific research plays a vital role in the improvement of human lifestyle.To learn more about scientific research refer to:
https://brainly.com/question/27599117
#SPJ2
each trait of a plant is determined by______ A. an allele B. one gene C. a pair of genes D. one dominant gene
Answer:Pair of genes
Explanation:
The trait of the plant can be determined by the the pair of genes that is transferred from the parents to the offspring.
The genes that is carried from the parents has both the pair of genes. The dominant genes that is expressed in the generation is known as dominant gene. It is dominant over other gene.
The gene which is not expressed is known as recessive gene.Hence, the correct answer is option C.
Suppose a person developed a mutation in a somatic cell which diminishes the performance of the body’s natural cell cycle control proteins. This mutation resulted in cancer yet, but was effectively treated with a cocktail of cancer-fighting techniques. Is it possible for this person’s future children to inherit this cancer causing mutation? Be specific when you explain why or why not.
Answer:
awdawd
Explanation:
What are the two main phases of a cell cycle
Answer:
1. interphase
2. mitotic (M) phase
Explanation:
The two main phases of a cell cycle are interphase and mitotic (M) phase.
Hope this helps! Have a great day!
Answer:
Interphase and mitotic
Explanation:
how does a mutation in a sex cell affect an organism
D, since it only affects the sex cell which are for forming offspring.
Answer:
it only affects the offspring of the organism
Explanation:
apex
In what type of cell must a mutation occur for it to be passed to offspring
Answer:
The only mutations that matter to large-scale evolution are those that can be passed on to offspring. These occur in reproductive cells like eggs and sperm and are called germ line mutations. A single germ line mutation can have a range of effects: No change occurs in phenotype.
Explanation:
A mutation must occur in a germ cell, or gamete, for it to be passed to offspring. This type of mutation is known as a germline mutation, and it can be inherited, affecting every cell of the offspring.
For a mutation to be passed to offspring, it must occur in a germ cell, also known as a gamete. These germline mutations are present in the sperm or egg cells and can be transmitted to future generations. When such a mutation occurs, it can result in every cell of the offspring containing that mutation, as the mutation will be present from the initial zygote stage and is replicated during every cell division. Somatic mutations, in contrast, occur in the non-reproductive cells of the body and are confined to the individual in which the mutation occurs; they cannot be passed on to offspring.
A - Prophase
B - Metaphase
C - Anaphase
D - Telophase
Choose the correct description for each phase of mitosis.
Label A
|| |||||||||||||||||||||||||||||||
A Centromeres are split apart and sister chromatids are pulled to opposite poles of the cell
B. The chromosomes that were doubled become attached to the spindle fiber by their centromeres
C. Chromatin in the cell coils into chromosomes that can be seen
D. Sister chromatids are separated and contain identical copies of DNA
Intro
Help!
Answer:
A - Prophase:::::::Chromatin in the cell coils into chromosomes that can be seen.
B - Metaphase :::::::The chromosomes that were doubled become attached to the spindle fiber by their centromeres.
C - Anaphase ::::::Centromeres are split apart and sister chromatids are pulled to opposite poles of the cell
D - Telophase:::::::Sister chromatids are separated and contain identical copies of DNA .
Explanation:
Mitosis:
It is the division process of the cell in which cell becomes divide into two equal halves each containing equal amount of DNA.
This division process is further divided into 4 subphases known as
Prophase
Metaphase
Anaphase and
Telophase
Answer:
Label A. Correct Answer Is C.
Label B. Correct Answer Is B.
Label C. Correct Answer Is A.
Label D. Correct Answer Is D.
Explanation:
Edge 2022
Which organelle in a eukaryotic cell is most noticeable under a microscope?
nucleus
nucleolus
ribosome
nuclear envelope
Answer:
nucleus
Explanation:
give an example in which the electrical energy changes to sound energy
Answer:
Sound energy is produced when an object vibrates. The sound vibrations cause waves of pressure that travel through a medium, such as air, water, wood or metal.
Explanation:
Please mark brainliest and have a great day!
Vibrations.
➤ Reason[[Im mainly going of the knowledge I already know, I don't know if I'll be wrong about any of this.]]
Electric energy is energy in general, which can totally cause somewhat disturbing vibrations to the surrounding area. Examples of this are thunder, but, the reason this doesn't count as it is actually converting electric energy, into heat energy, into sound energy. The heat warms up the air so fast it creates a wave of pressure, a shock wave, which is powerful enough to rumble into the distance for miles. What would count is electrical energy by itself. Everyone has heard the sound electricity makes when it zaps and buzzes. It can be rather loud to. This is the energy from the electricity causes vibrations, which is sound energy that can be heard by our ears. Electricity can also power things such as speakers which turn electrical pulses into sound that we can hear with our ears, which is kinda amazing. Science is epik.
✧ Oh god no, I dropped my bass, help.╚═⋄═◇═◈═❖═✧═☆═✧═❖═◈═◇═⋄═╝How would a biologist classify the plant stem shown
Answer:
There is no picture so I don't know what it's supposed to be showing
Explanation:
Match each organ with the germ layer from which it is formed.
mesoderm
ectoderm
endoderm
Answer:
The correct answer would be- intestine: mesoderm, Bone: mesoderm and tooth enamel: ectoderm.
Explanation:
The three germ layers of form during the gastrula stage of the embryo development in triploblastic organisms. Every germ layer gives rise to different organism later in the development.
Ectoderm gives rise to the nervous system, tooth enamel, cornea and lens and epidermis and other.
Mesoderm gives rise to skeleton system, intestine, notochord, stomach and other.
The endoderm gives rise to the respiratory system, urinary system and other.
Thus, the correct answer would be- intestine: mesoderm, Bone: mesoderm and tooth enamel: ectoderm.
How does competition increase stability in an ecosystem?
A a decreases biodiversity
B it keeps population balanced
C it causes cyclical disturbances
D it removes keystone species
Answer:
b
Explanation:
so that the habitat doesnt get overcrowded
The competition increase stability in an ecosystem by keeping population Balanced.
Explanation:
There is increase in competition this will in turn deals with stability in ecosystem. Because this creates continuous food chain where a larger animal will eat the smaller one and this cyclical chain keeps in check. The food chains creates complexities in the biodiversity this again is compensated with increase in population. With a lot more increase in species again the food chain demands the cyclical procedure. This is how in our biodiversity the stability in the organism is maintained.
Which of the following is a chemical reaction?
A.
breaking a glass pane
B.
freezing water
C.
digestion of food
D.
cutting down a tree
E.
evaporation of rubbing alcohol
Answer:
The answer is c
Explanation:
on edmentum
Scientific research about the nitrogen cycle and water quality is most
valuable to human populations with:
A
few sources of electricity.
B. few sources of fresh water.
C. large coastal populations.
D. large amounts of farmland.
Scientific research on the nitrogen cycle and water quality is most valuable to human populations with large coastal populations, as they heavily rely on coastal resources for various purposes. The correct option is C.
Large coastal populations are particularly dependent on the health of marine ecosystems, including water quality. The nitrogen cycle plays a crucial role in maintaining water quality, especially in coastal areas where nitrogen runoff from agricultural activities, sewage discharge, and atmospheric deposition can significantly impact marine environments.
Excessive nitrogen inputs into coastal waters can lead to harmful algal blooms, hypoxia (low oxygen levels), and eutrophication, all of which can have detrimental effects on marine biodiversity, fisheries, and human health. Research on the nitrogen cycle helps to understand the sources, pathways, and impacts of nitrogen pollution, allowing for the development of effective management strategies to mitigate its adverse effects.
Furthermore, large coastal populations often rely heavily on coastal resources for drinking water, recreation, tourism, and economic activities such as fishing and aquaculture. Therefore, maintaining water quality in coastal areas is essential for safeguarding public health, sustaining livelihoods, and preserving the overall well-being of coastal communities.
In conclusion, scientific research on the nitrogen cycle and water quality is most valuable to human populations with large coastal populations due to the significant ecological, economic, and societal implications of nitrogen pollution in coastal environments.
Scientific research on the nitrogen cycle and water quality is most valuable to human populations with:
C. large coastal populations.
Question:-
Scientific research about the nitrogen cycle and water quality is most
valuable to human populations with:
A. few sources of electricity.
B. few sources of fresh water.
C. large coastal populations.
D. large amounts of farmland.