Answer: Option A. Natural selection is incapable of creating perfect organisms; artificial selection is the only way that perfect organisms can evolve.
Explanation: Natural selection and selective breeding can both cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but artificial selection or selective breeding only occurs when humans intervene. Natural selection is not all-powerful; it does not produce perfection. If your genes are "good enough," you'll get some offspring into the next generation — you don't have to be perfect. Artificial selection is the only way that perfect organisms can evolve.
Farmers and breeders allowed only the animals with desirable characteristics to reproduce, causing the evolution of farm stock. This process is called artificial selection because people (instead of nature) select which organisms get to reproduce.
Chicken's sign is the same as the food sign for BIRD.
Amino acids are essentially the "building blocks" of proteins. You could think of it as an individual amino acid combining with others to form a link or stand.
Answer: The water is polar because of the fact that the bent shape of the molecule has a highly electronegative oxygen atom that attracts electrons or negative charge to it, along with making the region around the oxygen more negative than the areas around the two hydrogen atoms.
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Answer:
This enzyme is responsible for the production of DNA molecules from RNA molecules.
Explanation:
DNA polymerase is a type of enzyme that produces DNA molecules from RNA molecules. The enzymes play a vital role in the replication of DNA in which the enzyme produces two identical copies of DNA from one original DNA molecule. This replication of DNA is very important for cell division as well as growth of the organisms. Without this replication, no mitosis occurs in the body that leads to no growth of the organism so we can say that this enzyme plays a great role in growth of an organism.
