Unit 2 Ecosystems Interactions and Energy

Overlapping food chains in an ecosystem make up....

• food web
• food chain
• niche
• symbiosis

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NGSS.MS-LS2-3

All food webs and food chains begin with _________________.

• primary consumer
• producers
• secondary consumers
• predators

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NGSS.MS-LS2-3

A food pyramid represent the relative amount of energy in trophic levels. Which of the following correctly shows a food pyramid?

• A
• B
• C
• D

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NGSS.MS-LS2-3

In this energy pyramid, which organisms have the most energy available?

• Producers
• Carnivores
• Herbivores
• Top Predator

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NGSS.MS-LS2-3

How many carnivores are shown in this food web?

• 6
• 4
• 5
• 3

In an ecological pyramid, which type of organism always has the least amount of energy available?

• Producers
• Herbivores
• Carnivores
• Top Predator

Tags

NGSS.MS-LS2-3

How much of the energy in each level of a ecological pyramid gets lost as heat or used by the organism so that it cannot be passed on to the next trophic level?

• 80%
• 90%
• 10%
• 20%

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NGSS.MS-LS2-3

If there are 100 Kcal of energy available in the producers, how much energy would be available in the herbivores?

• 10 Kcal
• 1 Kcal
• 100 Kcal
• 1000 Kcal

Tags

NGSS.MS-LS2-3

This diagram shows the amount of energy that moves from one feeding level to another.

• Energy Pyramid
• Food Web
• Ecosystem
• Food Chain

Tags

NGSS.MS-LS2-3

The diagram represents different levels of a marine food pyramid. Between which two levels is the least amount of energy transferred

• R and Q
• S and R
• T and S
• U and T

Tags

NGSS.MS-LS2-3