Science Test 5.3

Energy flow in the ecosystem begins with...

• The Sun

• Primary Consumers

• Secondary Consumers

• Decomposers

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Plants are known as producers because...

• They produce new baby plantsT

• They use sunlight and water to produce matter (food) they use to grow.

• They produce food for humans and animals to eat.

• They produce rainbows that look pretty in the atmosphere.

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Animals get energy from the food they eat which allows them to...

• repair their body

• grow

• move

• maintain body warmth

• all of these answers

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The arrows in a food web...

• show the direction of the energy flow

• point to the sun

• show that lots of animals eat each other

• point to where the animal lives

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Drag and drop the things that ALL plants must have to survive.​ ​ ​ ​ ​ (a)   ​ (b)   ​ (c)   ​

• air
• water
• sunlight
• soil
• food
• fertilizer
• minerals
• bacteria
• container

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A primary consumer is...

• a plant

• an organism that consumes producers

• an organism that consumes small animals

• an organism at the top of the food web

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An apex predator is...

• a predator at the top of the food web. Nothing preys on it.

• a predator that also eats plants

• a predatory plant like the Venus trap

• an organism that breaks down waste

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Organisms that eat dead and decaying plants and animals...

• are decomposers

• help keep the Earth clean from waste piling up

• return nutrients from dead organic matter to the soil

• all of these options are correct

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A trophic level refers to...

• the position the organism has in a food pyramid or food web

• the number of animals in the ecosystem

• only the plants and does not include animals

• the ability of an organism to survive in a new ecosystem

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Producers are also known as autotrophs because...

• they make their own food

• they eat themselves

• they consume both plants and animals

• they only eat meat

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