When the concentration of a substance reaches equilibrium on both sides of a cell membrane, it can continue moving in and out of the cell using
a. passive transport
b. glycoproteins
c. active transport
d. cholesterol

the denominator has a very specific role.

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls

you need more balloons

1) a

2)c

3)a

4)c

5)b

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