Chapter 17

2. a group of birds
6. describes organisms that blend in with their surroundings
9. a relationship in which an organism looks very similar to another organism
10. the type of organism that does not live with other of its species
12. organism that breaks down the remains of dead organisms and return the material to soil
15. a layer of an ecological pyramid ___________ level
16. a relationship in which one organism benefits and the other organism in not helped or hurt
17. a relationship in which both organisms benefit
18. an organism that eats both plants and animals

1. organisms thar live with each other
3. the type of bright coloration that advertises the presence to another organism
4. an organism that eats plants
5. an organism that eats other animals
7. an animal that preys on and eats other animals
8. an organism that eats dead and decaying bodies
11. is an organism that feeds off another living organism
13. an animal that is eaten by another animal
14. plant that grows on another plant but does not receive nourishment from the plant
15. a living organism from which a parasite obtains energy
16. a relationship between 2 organisms that are using the same factor in an environment