NGSS.MS-LS2-1

Fisheries renew themselves naturally each year, but __________________ has caused a shortage of fish in some areas.

• overfishing
• catch limits
• global warming
• aquaculture

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NGSS.MS-LS2-1

Which is an abiotic factor that would affect the growth of a population within an ecosystem?

• the availability of water
• the availability of producers
• the type of herbivores present
• the number of carnivores present

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NGSS.MS-LS2-1

Food, water, sunlight, shelter, and space are resources that are often __________.

• limiting factors
• wet
• messy
• found in rocks

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NGSS.MS-LS2-1

Largest number of individuals of a population that the environment can support...  

• carrying capacity
• population crash
• lag phase
• mutualism

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NGSS.MS-LS2-1

There are 3 species of birds on an island. Bird A has a heavy bill for eating big seeds and. Bird B has a sharply pointed bill for eating insects. Bird C has a sharp bill for eating insects and small seeds. If the insect population suddenly disappeared one season, which bird or birds would probably be least affected that season?

• Bird A
• Bird B
• Bird C
• Bird A and Bird B

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NGSS.MS-LS2-1

When the amount of predators in an area increases, the number of prey

• Stays the same
• Decreases
• Increases
• Increases and decreases constantly

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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

Scientists have been studying the size of three populations in a river in Ireland. In this ecosystem, pike (a type of big fish) eat perch (a type of small fish), and perch eat snails. The data showed that all three populations were stable. Then the snail population increased suddenly. What will likely happen to the size of the perch population as a result?

• increase. An increase in any population within an ecosystem will lead to an increase in the sizes of all other populations in the ecosystem.

• increase. The larger snail population will provide more energy storage molecules for the perch population, so they will reproduce more. This will lead to more births than deaths in the perch population.

• stay the same. The size of its consumer population did not change, so the number of deaths in the perch population did not change. There will be the same number of births and deaths in the perch population.

• decrease. The larger snail population will take more energy storage molecules from the ecosystem, leaving fewer available for the perch population. This will lead to more deaths than births in the perch population.

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NGSS.MS-LS2-1

How many herbivores are shown in the web?

• 1

• 2

• 3

• 9

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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