15. The energy role of a grizzly bear is that of a(n).
because it cannot make its own food.

A. producer
B. consumer
C. decomposer
D. herbivore

Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?

How many cells are our body made of ? ♡

When the cell concentrates potassium within, against the natural tendency of matter, it is performing a.passive diffusion b.facilitated diffusion c.active transport d.pinocytosis