Question

Both prokaryote and eukaryote cells have this structure. It helps maintain homeostasis and is a boundary between the inside of the cell and the outside environment. It is the

A) nucleus.
B) membrane.
C) cytoplasm.
D) cell wall.

Answer 1

The answer is D the cell wall i believe

Answer 2

C, cell membrane

Nucleus = Command Center
Plasma Membrane = Semipermeable membrane, boundary of the cell, regulates homeostasis
Cytoplasm = 80% water + other stuff
Cell wall = not present in all organisms, gives shape to cell