Your answer is going to be A. Excretory.
Answer:
D. to increase their surface area
Explanation:
The usefulness of microvilli to cells that have them is TO INCREASE THEIR SURFACE AREA.
Answer:
there are three of them, convergent, divergent, and transform
Explanation:
Convergent: where two plates are moving towards each other
Divergent:Where two plates are moving AWAY from each other
Transform:Where two plates SLIDE past each other
