Answer:
A because proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues
Explanation:
The rescue workers can get energy to the batteries in their equipment during rescue missions by using a generator to convert the kinetic energy to potential energy. Potential energy is then stored in the battery.
Ecology is one component of Environmental Science that studies organismal interactions.
So your answer is c. interactions