Answer:
The term "population dynamics" refers to how the number of individuals in a population changes over time. Biologists study the factors that affect population dynamics because they are interested in topics such as conservation of endangered species (for example, the Florida panther) and management of fish and wildlife.
I think it is because of a varicose ulcer, might not be right though
B. Subcutaneous
this means that the needle goes into the fat layer of the skin.
it does NOT go into the muscle.
hope this helps.
