the method used to obtain nutrients and energy the process used to constantly remove excess water the method used to detect changes in their environment the process used to remove waste products from their cytoplasm
I gave my students this multiple choice question: Which life function is the same for an amoeba as for other freshwater protists?

Only one answer is correct among these 4 choices:
- the method used to obtain nutrients and energy
- the process used to constantly remove excess water
- the method used to detect changes in their environment
- the process used to remove waste products from their cytoplasm

Could you tell me which one is correct?

the process used to constantly remove excess water