Unlike the cell membrane, the cell wall is
a
selectively permeable.
b
composed of a lipid bilayer.
c
found in all organisms.
d
a rigid structure.

Which of the following is a feature of all cells? o a. all cells have a nucleus. o b. all cells have dna for at least part of their life cycle. het . o c. all cells are spheres. o d. all cells have a rigid cell wall.