A person who specializes in the study of animals is called a zoologist. Zoologists who study certain kinds of animals have their own names.
Answer:
Good environmental conditions and food availability.
Explanation:
Good environmental conditions and food availability are the factors that simulates the growth of parasite population in an animal with the passage of time. Yes, drug can reduces the population of parasites but all parasites can't be removed because some gain resistance against that chemical which allows them to survive in that environment so good environmental conditions and food availability increases population of parasite.
Answer:
True
Explanation:
The coelom is the main body cavity found in a group of multi-cellular animals known as metazoans that functions in absorbing shocks, supports immune system, acts as hydrostatic skeleton, and or facilitates a kind of transport system in the animals.
<em>The coelom arise from the mesoderm and as a result, the tissue lining the inner side of the body cavity arises from the same germ layer as the tissue lining the outer side of the body cavity.</em>