Crossword Puzzle Food chainsOnline version Food chains vocabulary review. by Heather Slawson 1 An organism that breaks down organic material. 2 An organism that eats animals. 3 An organism that eats plants. 4 The path of energy from one organism to another 5 An animal that eats other animals. 6 A living thing such as a plant or animal. 7 An organism that eats both plants and animals. 8 What is needed to do work or cause change. 9 An animal that is eaten by another organism. 10 The source of all energy. 2 7 6 4 3 8 10 5 9