Eli Practice Test 1

What is a decomposer?

• An organism that produces its own food

• An organism that gets energy by breaking down dead organisms

• A diagram that shows energy loss in an ecosystem

• An animal that cannot produce its own food.

Fill in the blank: An energy pyramid is a _______ that shows an ecosystem's loss of energy.

• diagram

• food chain

• consumer

• producer

Which of the following is an example of a food web?

• A single line of energy transfer

• A model of energy transfer showing interconnected food chains

• An organism that produces its own food

• An organism that breaks down dead material

Fill in the blank: A food chain is a simple model that shows how energy flows from one _______ to another.

• organism

• ecosystem

• pyramid

• consumer

What is a consumer?

• An organism that produces its own food

• An animal that cannot produce its own food and obtains energy by consuming other organisms

• A diagram that shows energy loss

• A model of interconnected food chains.

Fill in the blank: An autotroph is an organism that _______ its own food.

• A) consumes

• B) produces

• C) decomposes

• D) transfers

Which of the following is an example of a producer?

• A) A shark eating a fish

• B) Grass producing its own food

• C) A diagram of energy loss

• D) A model of interconnected food chains.

Fill in the blank: Decomposers get energy by breaking down _______ organisms.

• living

• dead

• producing

• consuming

What does an energy pyramid show?

• The production of food by plants

• The loss of energy in an ecosystem

• The consumption of food by animals

• The decomposition of dead organisms.

Fill in the blank: Consumers obtain energy by _______ other organisms.

• producing

• decomposing

• consuming

• diagramming