go through a life cycle form a food web act as a source of food affect other parts of the ecosystem
I gave my students this multiple choice question: Frogs lay eggs that develop into tadpoles and then into adult frogs. This sequence of changes is an example of how living things

Only one answer is correct among these 4 choices:
- go through a life cycle
- form a food web
- act as a source of food
- affect other parts of the ecosystem

Could you tell me which one is correct?

go through a life cycle