Active transport.
Passive transport, being its opposite, requires no energy at all. Therefore, active transport would require energy or ATP in order to move across.
Hope this helps!
I think its B if I'm not correct I'm sorry
And get a A+ on the assessment :D
Answer:
Big Joe is the main character or the protagonist
Explanation:
Answer:varied in size
Explanation:Galaxies vary in appearance. Galaxies differ greatly in size. Some contain as few as a hundred million stars, but the biggest have more than a trillion stars. Galaxies also vary in shape.
