NGSS.MS-LS2-1

Below is an example of a simple food chain.

Acorn → Squirrel → Fox → Mountain Lion 

What will most likely happen if squirrels are removed from the food chain?

• The fox will eat acorns
• The fox population will decrease
• The trees will produce fewer acorns.
• The mountain lion population will increase

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NGSS.MS-LS2-1

What happened to the wolf population between 1980 and 1982?

• it increased rapidly
• it decreased rapidly

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NGSS.MS-LS2-1

When a population grows past the ecosystem's carrying capacity, what happens to the population?

• Continues to grow
• The population starts to die off to return to carrying capcity
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

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NGSS.MS-LS2-1

What happened to the otter population between 1940 and 2000?

• The population increased and then decreased.
•  The population continued to increase.
• The population continued to decrease.
•  The population stayed the same.

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NGSS.MS-LS2-1

Animals from two different species utilize the same source of nutrition in one area. It is most accurate to say that the animals…

• will learn to get along
• will compete for food
• will die because there will not be enough food for both of them
• will learn to eat different foods

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NGSS.MS-LS2-1

Why are there more trees and grass than lions?

• Because nature chooses not to allow many to live
• The base of the energy pyramid is large to support all the organisms above it
• As you go up the energy pyramid, the amount of available energy increases
• The lions food demands are high so they need to eat alot of grass

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NGSS.MS-LS2-1

Why did the Bar-ba-loots have to leave?

• There was not enough Truffula Fruit.

• They did not like Thneeds.

• They could not find the Lorax.

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NGSS.MS-LS2-1

What are the biotic factors in this image?

• sunlight, elephants, and grasses
• sunlight, water,  and air
• elephants, plants, trees 

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NGSS.MS-LS2-1

An increase in which of the following factors is likely to contribute to competition between two members of the same species living in a certain habitat?

• Available food resources

• Population of the species

• Annual snowfall

• Overall size of the habitat

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NGSS.MS-LS2-1

What year is the lion population the highest

• 1920

• 1990

• 2000

• 2020

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NGSS.MS-LS2-1