The pituitary gland is the gland that triggers other glands to release hormones. It is a pea sized gland attached to the base of the brain. It is important in controlling growth and development and the functioning of the other endocrine glands. Without the pituitary gland, the body wouldn't reproduce, wouldn't grow properly and wouldn't function.
<span>In order for individuals best suited for growth and reproduction in a particular environment to contribute disproportionately to the next generation natural selection must take place. Natural selection is one of the basic mechanism of evolution. This mechanism leads</span> to adaptations and adaptations contribute to survival and reproduction.
Answer: C. Humans have avoided animal habitats.
Explanation:
Emerging diseases are those diseases which occur frequently after a single tenure of infection. These disease poses a serious challenge over the immune system of the body and it becomes incapable of recovery and can also be lethal.
Humans have avoided animal habitats. is the correct option this is because of the fact that on rare instances the association of animals was proven to be infectious to humans. Thus animal habitat avoidance cannot prove to be the concern for the re-emergence of a disease.