Aliving thing that hunts and eats other animals

If you're talking about something that lives off of eating others to survive, this would be considered a heterotroph

If you're instead asking for what hunts others as prey, then you'd consider this a predator

If this is a multiple choice question, try looking for one of those two as the answer.

A heterotroph is the correct answer because they eat other living things to survive

answer; ///i do believe that the correct answer is (c) hold atoms together to form compound;

b - the respond is innate and varies over time.

good luck!