5th Grade- Life Science Study Guide

Which organism is a consumer

• oak tree

• rosebush

• prarie dog

• tomato plant

Which best compares lakes and oceans?

• both are large bodies of freshwater

• both are large bodies of saltwater

• only lakes have fish

• only oceans have coral

An organism gets the nutrients it needs by breaking down dead leaves. Which is the best way to classify the organism?

• a producer

• a decomposer

• a herbivore

• consumer

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Which is a living factor of both a grassland and a forest ecosystem?

• soil

• pine tree

• shrub

• rocks

Which best describes an ecosystem?

• all the living and nonliving things in an area

• all the organisms of the same kind in an area

• a large area, such as a forest

• a place where many organisms may live

which describes one way that energy is transferred in a food chain?

• from a producer to another producer

• from consumer to producer

• from producer to consumer

• from producer t the sun

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Eelgrass is a major source of food for birds and turtles in an estuary. What will most likely happen to the bird and turtle populations if people remove the eelgrass to build a bridge?

• turtle population will increase but bird population decreases

• both turtle and bird population increases

• bird population increases but turtle population decreases

• both bird and turtle populations decrease

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Which is an example of a consumer?

• algae

• fungus

• raccoon

• pine tree

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Which organism most likely lives in the grasslands?

• trout

• bison

• bear

• crab

In a lake ecosystem, how would people catching too many minnows most likely affect the minnows' predators?

• predators will loose major food source

• predators will leave to find food

• predators would not be affected at all

• predators would reproduce more

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