Living Systems and Life Processes

If the mice in this environment were to no longer exist, what might be a possible change in this food chain?

• The owl population would decrease.

• The grass would no longer grow.

• The grasshopper population would decrease.

• The owl population would increase.

Tags

CCSS.RI.3.1

CCSS.RI.3.7

CCSS.RI.3.3

Using the images above, which graph correctly shows the number of consumers and producers?

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Tags

CCSS.RI.3.7

CCSS.SL.3.2

These pictures best show how -

• animals use plants for food

• animals use plants for homes

• animals do not use plants

• plants keep animals warm in the winter

Tags

CCSS.RI.3.1

CCSS.RI.3.7

CCSS.RI.3.2

Look at the image of the fossil. This fossil was found in a mountain range. A paleontologist claims that the area was once underwater. Choose the option that supports the claim.

• The fossil is of an organism that once lived under water.

• The fossil belongs to an organism that once lived in the sea but later migrated to the mountains.

• The fossil is of an organism that once lived on the mountains.

• The fossil belongs to an organism that lived in a desert but later migrated to the mountains.

Tags

CCSS.RI.3.1

CCSS.RI.3.7

Based on the food chain, which of these is a carnivore?

• Osprey

• Sun

• Water plant

• Mayfly nymph

Tags

CCSS.RI.3.1

CCSS.RI.3.7

The elephants in this picture are an example of a/an ___________________.

• camouflage

• mimicry

• population

• community

Tags

CCSS.RI.3.1

CCSS.RI.3.7

CCSS.RI.3.4

Which picture represents an aquatic ecosystem?

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Tags

CCSS.RI.3.1

CCSS.RI.3.7

An earthworm is an organism that breaks down decayed plants and animals into smaller pieces that can be used by other living organisms.  As a result, an earthworms is known as a -

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  producer

• consumer

• decomposer

• omnivore

Tags

CCSS.RI.3.1

CCSS.RI.3.2

CCSS.RI.3.4

Which picture represents a terrestrial ecosystem?

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Tags

CCSS.RI.3.1

CCSS.RI.3.7

CCSS.SL.3.2