Food Webs

3. This is a special kind of predator that has no natural predators.
6. 90% of energy is lost from trophic level to trophic level as _______ and undigested food.
8. An organism that eats another organism
10. Producers make up the ____________ of the energy pyramid.
11. An animal that finds already dead animals to eat.
13. An organism that makes its own food using the energy from the Sun
15. Animals that hunt and eat other animals
17. Each level of the food chain is called this.
18. Grasshoppers are this type of consumer
19. This level of consumer eats the animals that consumer plants

1. A visual representation of the flow of energy through an ecosystem
2. An organism that takes dead matter and breaks it down, releasing nutrients back into soil or water
4. The ability to do work (to affect a change), what we get from eating
5. Humans are this type of consumer
7. The source of all energy in an ecosystem
9. A diagram made up of interconnected food chains
12. Lions are this type of consumer
14. What icon shows the transfer of energy?
15. This level of consumer eats plants
16. Animals that are consumed as food