5th Grade--Lesson 9 Vocabulary

1.      Commensalism—a type of symbiosis in which one species benefits from the relationship, while the other is unaffected

2.      Host—an organism that is harmed by a parasite

3.      Mutualism—a type of symbiosis in which both species benefit from the relationship

4.      Parasite—an organism that takes energy and nutrients from a second species, called a host

5.       Parasitism—a type of symbiosis in which one species benefits from the relationship while the other is harmed

6.      Predator—an animal that hunts and kills other animals for food

7.      Prey—an animal that is hunted and killed by a predator

8.      Species—a group of organisms that can mate with each other and produce offspring

9.      Symbiosis—a close relationship between two species

10.  Food web—a model that shows how energy moves from one organism to another in an ecosystem.  It is made up of many food chains.

11.   Food chain—a model that shows how energy moves from one organism to another in an ecosystem