4.9A food in an ecosystem

Which of these organisms can make its own food?

• Rabbit

• Daisy

• Mushroom

• Earthworm

2 An elephant gets the energy it needs to survive when it –

• A drinks water from streams.

• B warms itself in the sun.

• C eats grass and leaves.

• D sleeps on the ground.

3 A pond food chain is illustrated here. In this food chain, the large fish gets it energy by –

• A absorbing sunlight.

• B eating plants.

• C preying on small fish.

• D being food for hawks.

4 A prairie food web is illustrated here. If all of the squirrels were removed from this food web, which animal population will most likely decrease first?

• A Antelopes

• B Coyotes

• C Mountain lions

• D Hawks

If a pesticide killed all the insect larvae in this food web, all of the following would immediately result EXCEPT –

• A bass would have more minnows to eat.

• B snails would have more algae available.

• C sunfish would be forced to eat more snails.

• D minnows would lose a source of energy.

A producer's role in an ecosystem is to?

• bring down energy from the sun

• eat other organisms

• break down dead things

• prey on other organisms

A consumer

• is an organism that consumes other organisms

• is an organism that produces energy

• is an organism that beraks down dead things

• is the original source of energy in an ecosystem

A decomposer

• is an organism that breaks down dead things to return energy to the soil

• is an organism that consumers other living organisms

• is an organism that turns light from the sun into food

• is an organism that breathes carbon dioxide to produce oxygen

What type of organism needs carbon dioxide and produces oxygen?

• consumer

• producer

• decomposer

• the sun

if you give a producer Carbondioxide +Water+Sunlight you get?

• Food+Oxygen

• Carbon Dioxide and Food

• Food and Water

• Water and Carbon Dioxide