The answer would be C. Energy is used through the food chain so energy always decreases. Population size would commonly decrease according to the pyramid of food chain but since there's no answer for that, C would be the most suitable
Answer:
-"Cell - some cells are meant to do a certain job then destroy self
-Digestion of surplus cells by their own lysosomal enzymes
Explanation:
Answer:
All the choices are correct
Use energy, Maintain homeostasis, and Composed of cells.
True because excretory is like sweat and you sweat through your skin- more specifically the pores in your skin
