Answer:
D
Explanation:
To maintain homeostasis. If they did not remove wastes, there would be a buildup of wastes inside the cell, which is not maintains homeostasis.
Hope this helped!
Explanation:
Mutualism is defined as an interaction between individuals of different species that results in positive (beneficial) effects on per capita reproduction and/or survival of the interacting populations.
No it will not bwecause there are two valves
C. calcium is your answer
