Can lipids be found in the cell menbrane

How many variables are altered in a good experiment? a.1 b.0 c.2 d.3

The energy needs of a human population are not affected by

What is a universal way that predation benefits the predator? predation increases mate availability. predation in defense of space. the predator gets the energy it needs to survive. the predator keeps parasites from hurting the species.