Answer:
My Guess Is C if im wrong sorry
Explanation:
Just thinking logicaly
Answer:
A producer. For example in a common food chain, grass->grasshopper->mouse->snake->eagle. The grasshopper eats grass which is a producer so if there aren't anymore insects like grasshoppers, then the grass grows more.
D. Glucose they don't need it to survive
Explantion: they need liquid,water,and carbohydrates.