Energy Pyramids and Food Webs and Cycles

a deer population has significantly increased, the best hypothesis is 

• the deer's main predator has been eliminated
• competition increased
• decreased water levels of local ponds
• organisms that rely on similar food sources migrated to the area

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NGSS.MS-LS2-1

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A diagram that shows the amount of energy that moves from one feeding level to another is termed..

• energy pyramid
• adaptation
• autotroph
• food web

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NGSS.MS-LS2-3

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.

• There would be a decrease in the grass/flowers population.

• There would be a decrease in the mice population.

• There would be an increase in the grass/flowers population.

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NGSS.MS-LS2-1

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Which one is NOT an example of a decomposer?

• mushroom
• leaves
• mold
• worm

An organism that gets energy from eating other organisms is a ______________

• producer
• consumer
• decomposer
• prey

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NGSS.MS-LS2-2

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

Tags

NGSS.MS-LS2-3

What percentage of energy is passed on to each tropic level?

• 10%
• 50%
• 90%
• 100%

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NGSS.MS-LS2-3

How do producers obtain energy?

• They conduct photosynthesis.
• They consume plants.
• They consume primary consumers.
• They consume secondary consumers.

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NGSS.MS-LS1-6

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Which represents the largest group in a food web?

• carnivores
• omnivores
• herbivores
• producers

Tags

NGSS.MS-LS2-3

A group of students on a field trip observed the following organisms on an old oak tree: 

• Caterpillar→

  honey bee→

  woodpecker

• Oaktree→squirrel→woodpecker

• Oaktree→

  caterpillar→

  woodpecker

• Oaktree→

  caterpillar→

  woodpecker

Tags

NGSS.MS-LS2-1

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