Topic 5 / Lesson 2

Role

• A series of events in which one organism eats another and obtains energy and nutrients.

• The way organisms get food and interacts with other organisms. Organisms play the energy role of either a producer, consumer or decomposer.

Producer

• Gets energy by feeding on other organisms.

• An organism that can make its own food.

Consumer

• Obtains (gets) energy by feeding on other organisms.

• An organism that can make its own food.

Decomposer

• Obtains (gets) energy by feeding on other organisms.

• Break down biotic waste (such as leaves that fall from trees) and dead organisms, returning the raw materials to the ecosystem.

Food chain

• A series of events in which one organism eats another and obtains energy and nutrients.

• Break down biotic waste (such as leaves that fall from trees) and dead organisms, returning the raw materials to the ecosystem.

Food web

• Obtains (gets) energy by feeding on other organisms.

• Consists of many overlapping food chains in an ecosystem.

Energy pyramid

• a series of events in which one organism eats another and obtains energy and nutrients.

• Shows the amount of energy that moves from one feeding level to another in a food web.

An example of a producer would be

• Rabbit

• Squirrel

• Tree

An example of a consumer would be

• Tomatoe plant

• lizard

• Dandilion

An example of a decomposer would be

• Fish

• Hawk

• Mushroom