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.
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Answer:
Atmosphere takes place in the stratosphere and we live in troposphere
C. <span>Energy flows through an ecosystem and cannot be recycled. </span>
Answer:
The reactivity of acetic acid with various chemicals.
Answer:
proteins are polymers made of monomers called amino acids
Explanation: