7th Grade DCA Review

A pyramid shape is used to show the amount of available energy at each trophic level because... 

• energy decreases as you go up the food chain, just like the pyramid shape gets smaller as you go up. 
• energy increases up the food chain just like the pyramid shape gets smaller as you go up. 
• energy amounts are the same at each trophic level

Tags

NGSS.MS-LS2-3

What is the ultimate ORIGINAL source of energy for living things

• Sugar
• Sun
• Moon
• Carbon Dioxide

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

An organism that eats the producer- (animals that eats plants)

• Secondary Consumer
• Primary Consumer
• Tertiary Consumer
• Consumer

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NGSS.MS-LS2-2

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.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Sharks consume smaller fish they catch in the ocean. This is an example of what type of relationship?

• predator/prey
• parasite/host
• producer/consumer

Recently, a family of bobcats moved into an area with a large rabbit population. Bobcats are a predator of rabbits. What changes may occur in the ecosystem?

• The rabbit population may increase

• The rabbit population may decrease

• The rabbit population may increase first, then decrease

• The rabbit population will remain the same

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

A person would weigh less on the moon than on the Earth because...

• the moon has less mass, and therefore less gravity
• the moon has more mass, and therefore less gravity
• the moon has less mass, and therefore more gravity
• the moon has more mass, and therefor more gravity

Tags

NGSS.MS-PS2-4

What is a force that pulls objects towards each other?

• Tension

• Gravity

• Speed

• Inertia

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NGSS.MS-PS2-4

Which of this energy roles is always located at the bottom of an energy pyramid?

• Producer
• Second-Level Carnivores
• Herbivores.
• First-Level Consumers.

Tags

NGSS.MS-LS2-3

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

• Producers
• Carnivores
• Herbivores
• Top Predator

Tags

NGSS.MS-LS2-3