Question

Answer under 20 minutes and I will give brainiest!!

Answer 1

Answer:

1. What do contractile vacuoles do? A. Pump water out - Contractile vacuoles are membrane-bound organelles that pump water out of the cell.

2. Parasitism is an example of which of the following? B. A density-dependent factor - Parasitism and diseases are density-dependent effects, because the denser the host population, the more easily parasites can spread from one host to another.

Answer 2

1. Parasitism is an example of which of the following?
B. A density-dependent factor


2. What do contractile vacuoles do?
A. Pump water out