<span>base pairing according to certain rules
i think that would be it</span>
Answer 4th sentence Hope this helps
Answer:
i cant see anything in your profile
Explanation:
Answer:
Energy
Explanation:
Active transport requires energy to move substances across a plasma membrane, often because the substances are moving from an area of lower concentration to an area of higher concentration or because of their large size. Two types of active transport are the sodium-potassium pump and vesicle transport.