NGSS.MS-LS2-1

If the prey population decreases, the predator population ________

• Increases
• Decreases
• Stays the same

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NGSS.MS-LS2-1

Which is the most significant limiting factor in a desert ecosystem?

• nutrients
• predators
• sunlight
• water

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NGSS.MS-LS2-1

Use the following food chain to answer this question
Grass--> Insects--> Shrews-->Owl
What would happen if all the insects were to be eliminated?

• The grass would decrease and the shrews would increase
• the grass would decrease and the shrews would decrease
• the grass would increase and the shrews would decrease
• the grass would increase and the shrews would increase

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NGSS.MS-LS2-1

How much water does a plant need to grow?

Which are the constant variables?

• The type of plant

• How much water you use

• Location of plant

• How much the plant grows

• How long you grow the plant

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NGSS.MS-LS2-1

Scientists gathered the following data on lizard populations for several years. The results are shown in the table. Which environmental factor most likely contributes to the change in lizard population? 

• increase in available water and food
• increase in shelter
• increase in predators
• increase in light

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NGSS.MS-LS2-1

Observe the food chain below. What would be the result of disease killing off most of the mouse population?

• All populations would be relatively unaffected

• The grasshoppers would become extinct

• The grasshopper population would decrease; the owl population would increase

• The grasshopper population would increase and the owl population would decrease

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NGSS.MS-LS2-1

This graph shows....

• when the biotic factor increases the population increases immediately.

• the biotic factor constantly decreasing.

• the abiotic factor constantly increasing

• There is a delay of several months for the population to increase following an increase in the abiotic factor.

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NGSS.MS-LS2-1

A species of rabbit lives in a meadow where grass plants are readily available during summer months. The rabbits do not stray far from the meadow because the plants supply food and protection from predators. One summer, a fire destroys the plants in the meadow. As a result of the absence of plants in the meadow, the rabbit population will probably...

• decrease in size

• increase in size

• increase reproduction

• switch to a different type of food

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NGSS.MS-LS2-1

Rats were introduced to Australia and the rat population exploded over several years. Which would not be a reason for their population growing?

• Large amounts of available food

• Increase in the number of predators.

• More water available

• Large habitats to live in

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NGSS.MS-LS2-1

Limiting factors (like abiotic & biotic) determine______

• availability of food

• carrying capacity

• disease

• habitats

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NGSS.MS-LS2-1