Question

Organisms that rely on other living things for food are called:

A. multicellular
B. vertebrates
C. eukaryotes
D. heterotrophs

Answer 1

Heterotrophs

Hope this helps...

Answer 2

Answer : The correct answer is-

D. heterotrophs.

Heterotrophs are those organisms that can not synthesise their own food (unlike plants and algae) and are dependent on other organisms ( either plants or animals) for their nutritional requirements.

Example- Rabbit, deer, horse, human beings.

Thus, option D) is the right answer.