1) Explain which cell would be more efficient at obtaining nutrients and releasing wastes-a cell that has a large surface area to volume ratio or a cell that has a small surface area to volume ratio. 2) list the four phases of mitosis in the correct sequence and describe the events of each phase

3) describe the role of cyclins

please and thank you /lh

Which organelle releases chemicals that break down large food particles into smaller ones?

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.