NGSS.MS-LS2-1

Which population would be most affected if there is a decrease in the population of aquatic insects?

• elk
• frog
• moose
• squirrel

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NGSS.MS-LS2-1

What year is the zebra population the highest

• 1920
• 2000
• 1960
• 2020

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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

The maximum number of organisms that an ecosystem

can support without deteriorating

• carrying capacity

• exponential growth

• mitosis

• photosynthesis

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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

Which characteristic of a cold-water upwelling near the coast of Northern California results in a large concentration of marine organisms?

• loss of thermal stability

• high nutrient concentration

• consistent surface-current flow rate

• increased availability of dissolved oxygen

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NGSS.MS-LS2-1

A student wants to investigate competition between two organisms. For the investigation, it is most important that the student should choose organisms that –

• reproduce at a faster rate.

• are both active during the night.

• have the different adaptations.

• require the same resources.

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NGSS.MS-LS2-1

Some limiting factors that affect populations include lack of food, lack of water, lack of living space, and the spread of disease.

• True

• False

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NGSS.MS-LS2-1

When the availability of water impacts plant growth and animals who depend on plants for food the interaction is between the ______________ and ___________ .

• biosphere and geosphere

• hydrosphere and biosphere

• atmosphere and geosphere

• atmosphere and hydrosphere

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NGSS.MS-LS2-1