I believe that the answer is B
Endotherms are animals whose body
temperature is regulated mainly by internal bodily processes. Endotherms are
warm blooded animals such as birds and mammals that maintain a constant body
temperature independent of the environment. Endotherms require high quantities
of fuel to produce heat for their survival under low external temperatures.
the answer is c. chemical bonding bc its the attraction between atoms.
Answer:
Definitely A is the correct option
