Answer:
No, because a cell wall is only present in plant cells and is located outside the cell to give it structure.
<span>During crossing over in meiosis </span>an incomplete exchange of genetic material occurs. This would most likely produce,a deficiency in one homologue and a duplication in the other homologue
Answer:
They increase the levels of catecholamines—a family of brain chemicals that includes dopamine.
Explanation:
Stimulants are a class of drugs that “stimulate” the body's central nervous system, which includes the brain and spinal cord. They increase the levels of catecholamines—a family of brain chemicals that includes dopamine. These chemicals are used in the brain processes to signal reward and motivation.
Answer:
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 selective breeding only occurs when humans intervene. For this reason selective breeding is sometimes called artificial selection.
Explanation:
