topic 6

During cellular respiration, what is the direct source of the energy used in the cells of consumers in the ecosystem represented above?

• the Sun

• enzymes

• the atoms making up inorganic molecules

• the chemical bonds in organic molecules

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NGSS.MS-LS1-2

NGSS.MS-LS2-3

According to the chart, which two species would be more likely to survive if their environmental conditions changed?

• Tasmanian tiger and Tasmanian devil

• brown bear and whale

• Tasmanian tiger and wolf

• panda and wolf

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NGSS.MS-LS2-4

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Producers are generally found at the beginning of a food chain. Which statement best explains why this is true?

• Producers are usually smaller in size than consumers.

• Producers do not rely on other organisms for food.

• There are always more consumers than producers in food chains.

• Consumers are always more complex organisms than producers.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Throughout New York State, some farmers have switched from growing a variety of vegetable crops to growing a single crop, such as corn. Other farmers are concerned that such a practice will make it more likely that an entire crop could be lost to disease or infestation by an insect pest. This is a valid concern because this practice

• reduces the biodiversity of their fields

• decreases the need to import food

• decreases the need to import food

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which type of organism could occupy levels B, C, and D of this energy pyramid?

• consumer

• producer

• producer

• carnivore

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

The organisms found at the second trophic level of this pyramid would be

• producers

• decomposers

• carnivores

• herbivores

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NGSS.MS-LS2-2

NGSS.MS-LS2-3

A factor not shown in the diagram that provides energy for living organisms is

• carbon dioxide

• water

• the Sun

• oxygen

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Sharks are often followed by smaller fish that eat some of the scraps from the organisms eaten by the shark. These smaller fish are acting as

• decomposers

• scavengers

• producers

• herbivores

A stable ecosystem can have high biodiversity because each species in that ecosystem

• occupies a different niche

• inhabits a different environment

• is part of a different community

• lives in a different biosphere

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NGSS.MS-LS2-5

Stability within an ecosystem is achieved partially by the presence of organisms that break down important molecules and make them available for other organisms to use. These organisms are

• plants

• herbivores

• scavengers

• decomposers

Tags

NGSS.MS-LS2-3