I believe the answer is a earthworm
Class, I guess ¿? :)dnsjjsjdjdjdjddj
<span>The
answer is facilitated diffusion. It requires no energy because the ions are
traveling down the concentration
gradient. Facilitated diffusion is important
for the regulation of ions in a cell. It also enables
ions to pass across the hydrophobic layer of the cell membrane composed
of phospholipids.</span>
400x
This is high power. The lowest setting on a microscope is 40x. Each power is going by being multiplied by 10.
