EOG Review 3

Which of the following best describes a food chain?

• A complex network of interconnected food webs

• A linear sequence of organisms where each is eaten by the next

• A group of organisms that share the same habitat

• A cycle of energy flow in an ecosystem

In a food web, what role do producers play?

• They decompose organic material

• They convert solar energy into chemical energy

• They consume other organisms for energy

• They are at the top of the food chain

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NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which of the following is an example of a mutualistic relationship?

• A lion hunting a zebra

• A bee pollinating a flower

• A tapeworm living in a host's intestine

• A bird eating ticks off a buffalo

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NGSS.MS-LS2-2

What is the primary source of energy for most ecosystems?

• Chemical energy from the soil

• Heat from the Earth's core

• Solar energy from the sun

• Kinetic energy from wind

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

In an energy pyramid, which level contains the most energy?

• Tertiary consumers

• Secondary consumers

• Primary consumers

• Producers

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NGSS.MS-LS2-3

What is the role of decomposers in an ecosystem?

• They produce energy through photosynthesis

• They break down dead organisms and recycle nutrients

• They compete with primary consumers for food

• They are the top predators in a food chain

Tags

NGSS.MS-LS2-3

Which of the following best describes a trophic level?

• A group of organisms that share the same habitat

• A step in the transfer of energy and matter in a food chain

• A type of symbiotic relationship

• A measure of biodiversity in an ecosystem

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NGSS.MS-LS2-3

What happens to energy as it moves up the trophic levels in an ecosystem?

• It increases

• It remains constant

• It decreases

• It is completely lost

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is an example of a commensal relationship?

• A remora fish attaching to a shark

• A wolf hunting a deer

• A fungus decomposing a log

• A bee pollinating a flower

Tags

NGSS.MS-LS2-2

In a food web, what is the role of a primary consumer?

• To produce energy through photosynthesis

• To consume producers and transfer energy to higher trophic levels

• To decompose organic material

• To be the top predator in the ecosystem

Tags

NGSS.MS-LS2-3