Answer:
Residual soil.
Explanation:
Transported soil is deposited by agents such as ice and water and is not derived from the underlying bedrock
The endocrine system is composed of glands that release insulin, a natural agent that breaks down sugars and glucose in the blood.
Calcium in the teeth provides appropriate pH levels in the mouth.
Points C and D are correct statements for Natural Selection.
Natural selection is the process by which organisms develop variation in traits, which gives them the better chance of survival and Natural selection is the process by which organisms with more beneficial traits are more likely to survive and reproduce.
Explanation:
Darwin postulated in his theory that over a period of time there are changes in physical or behavioral traits which are transferred from parent to the next generation. The changes which led to the better adaptation to the environment will help survive the organisms. Such organisms will reproduce.
