Answer is D as substances are taken up and enclosed in a vesicle.
A) Tropical rain forest.
This is one of the myriad reasons that it is vital that we protect and preserve our rain forests.
Answer:
Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell. ... Movement across a selectively permeable membrane can occur actively or passively. For example, water molecules can move passively through small pores on the membrane.
Explanation:
The cell membrane is population with proteins,lipids, and carbohydrates.
D....................................................
