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Use the energy pyramid to answer the question that follows.  When one organism consumes (eats) another one, the molecules in the food are converted while energy is transferred. The different positions that identify an organism’s place in an ecosystem as shown above are

• trophic levels

• food chains

• niche sites

• energy sources

Tags

NGSS.MS-LS2-3

Which organisms use the energy from the remains of dead animals and recycle the nutrients back into the environment?

• producers

• herbivores

• omnivores

• decomposers

Tags

NGSS.MS-LS2-3

Use the food chain to answer the question that follows. What would happen if the frogs were suddenly removed from the food chain?

• The grasshopper population would increase.

• The snake population would begin feeding on grasshoppers.

• The owl population would increase.

• The clover population would be unaffected.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

As the hawk population increases in an ecosystem, the deer mouse population will MOST likely decrease as a result of

• decrease in food source

• increase in disease.

• increase in predators.

• decrease in habitat.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

The diet of a brown bear includes roots, grasses, berries, nuts, fish, insects, and mammals. Based on this description, in what category is a brown bear?

• carnivore

• herbivore

• omnivore

• decomposer

All organisms depend on the transfer of energy to survive. Which BEST shows the energy transfer between animals in a shoreline ecosystem?

• Fish → Plants → Birds

• Plants → Birds → Fish

• Plants → Fish → Birds

• Fish → Birds → Plants

Tags

NGSS.MS-LS2-3

The primary reason that plants are important for an ecosystem is because they

• provide energy for consumers.

• depend on other organisms for shelter.

• break down dead animal matter.

• consume nutrients for energy.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which organisms eat only plants?

• producers

• omnivores

• herbivores

• scavengers

Which of these is necessary for life on Earth?

• water

• trees

• wind

• soil

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

What is taken in by the leaves of a tree so it can make its own food?

• oxygen

• sugar

• sunlight

• water

Tags

NGSS.MS-LS1-6