Answer:
Biological Anthropologist
Explanation:
Biological Anthropologist studies human evolution, variation and adaptation in relation to changes in the environment
Because there will eventual reach a point where the food or some other necessity runs out and instead of growth continuing, it stays at relatively constant.
Answer:
A model organism is a species that has been widely studied, usually because it is easy to maintain and breed in a laboratory setting and has particular experimental advantages. Model organisms are non-human species that are used in the laboratory to help scientists understand biological processes
Explanation:
Because the soil didn't have the same nutrients it has now due to lack of decomposition of other plants and animals.
Mouth or nose. Then goes into your trachea and into your lungs
