Unit 10 Review Quizizz

A diagram showing water levels in a freshwater lake is shown below. Which statement best describes the distribution of life in the lake?

• Autotrophs exist mainly in Layer 1 because most sunlight reaches this level.

• Heterotrophs exist only in Layer 3 because they consume larger organisms near the bottom.

• Decomposers exist mainly in Layer 2 because they have access to producers and consumers.

• Autotrophs, heterotrophs, and decomposers exist equally in all three layers because lakes are not very large.

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NGSS.MS-LS1-6

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A new type of fish has been discovered. It has vibration receptors on its snout and virtually nonexistent eyes. Based on these characteristics, in which part of the ocean is this fish most likely found?

• in surface waters

• in the intertidal zone

• in shallow water near the shore

• in deep waters far from the shore

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NGSS.MS-LS4-4

The growth of mosses and lichens on a bare volcanic region helps prepare the area for the next stages of succession. How do mosses and lichens most contribute to this process?

• They poison populations of primary consumers.

• They build up soil deposits on the rocky ground.

• They neutralize deposits of extreme acids in the rocks.

• They increase the amount of oxygen in the surrounding air.

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NGSS.MS-LS2-2

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Seasonal wildfires often destroy large areas of vegetation in western states, such as California and Arizona. What type of vegetation would appear first after a large wildfire?

• shrubs

• grasses

• tree saplings

• mature trees

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NGSS.MS-LS1-5

In 1944, reindeer were introduced to an island off the coast of Alaska. The graph shows the change in reindeer population size over thirty years.

Which reason most likely explains the decrease in population size after year 19?

• The hunting of reindeer was banned.

• A predator of reindeer was introduced to the island.

• The main food source for reindeer became plentiful.

• Competition for resources became less for the reindeer on the island.

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Which change would cause an increase in the size of a population?

• increase in deaths and a decrease in births

• increase in emigration and decrease in births

• increase in deaths and decrease in immigration

• increase in immigration and a decrease in emigration

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NGSS.MS-LS1-5

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Which two factors could increase the carrying capacity of an ecosystem?

• an increase in immigration and birth rate

• a decrease in habitat size and death rate

• an increase in available water and space

• a decrease in food supply and predation

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NGSS.MS-LS2-1

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A river has historically had a large population of wetland grasses growing near the shore. Which statement describes the most likely long-term effect of introducing an aggressive, non-native aquatic plant species into the river?

• The grasses will adapt to live on dryer soil

• The grasses will grow at the carrying capacity

• The non-native plant will grow along the shore

• The non-native plant will outcompete the grasses

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Which statement describes the most likely result of a field being cleared to build homes?

• Biodiversity will decrease

• Rates of soil erosion will decrease

• The productivity of the ecosystem will increase

• The total number of organisms at each trophic level will increase

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NGSS.MS-LS2-4

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Which is a disadvantage of using wind energy and solar energy as renewable resources instead of using nonrenewable resources, such as fossil fuels?

• Wind energy and solar energy produce less waste than fossil fuels.

• Wind energy and solar energy require more recent technology than fossil fuels.

• Wind energy and solar energy rely on weather to generate power unlike fossil fuels.

• Wind energy and solar energy must be imported from other countries unlike fossil fuels.