Answer:
D
Explanation:
When a substance moves from low to high concentration it is moving against its concentration gradient, which requires more energy.
A. It depends on where it is moving, not the substance
OB. This is describing diffusion
OC. Does not require energy, it is passive transport through a semi-permeable membrane
C. So it can travel from one part to another
You can introduce the gene into bacteria in order to allow the bacteria to produce more of the hormone.
I dont know but if i did i would tell you