Answer:
The function of the digestive system is digestion and absorption.
Explanation:
Digestion is the breakdown of food into small molecules, which are then absorbed into the body.
In biology, the biotic factors pertain to the living components of Earth while the abiotic factors are those non-living chemicals and physical factors. The only choice that is not an interaction between biotic and abiotic factors is the third choice, "C. male elk fighting over a female".
