Lesson 4: Relationships in Ecosystems Science Chapter 4.

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Presentation transcript:

Lesson 4: Relationships in Ecosystems Science Chapter 4

Words to Know Community- all the living things in an ecosystem. Pg 138 Predator- an animal that hunts and eats other animals. Pg 139 Prey- an animal that a predator hunts. Pg 139 Parasite- a living thing that feeds on and harms another living thing. Pg 140 Host- the living thing that is harmed by a parasite. Pg 140

Relationships within an ecosystem Relationships in an ecosystem are important for the survival of all living things. 3 kinds of relationships are: Predator and prey Parasite and host Living things helping other living things