Ecosystems and More! S. Foresman Chp. 5

What is the primary role of decomposers in an ecosystem?

• To produce energy from sunlight

• To break down dead organisms and recycle nutrients

• To hunt and eat prey

• To compete for resources with other organisms

Tags

NGSS.MS-LS2-3

Which of the following is an example of a biome?

• A pond

• A city park

• A schoolyard

• A rainforest

Which of the following best describes a food chain?

• Animals in the same biome

• A line of organisms where each is eaten by the next in line

• A group of organisms that share the same habitat

• A cycle of energy flow in an ecosystem

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What is a niche in an ecosystem?

• The physical space an organism occupies

• The special ability an animal has in its environment

• The food an organism eats

• The predators that hunt an organism

Tags

NGSS.MS-LS2-2

Which of the following is a characteristic of a predator?

• It is always a herbivore

• It decomposes dead organisms

• It is always at the bottom of the food chain

• It hunts and kills other animals for food

What is the main difference between a food chain and a food web?

• A food web has multiple connected food chains

• A food chain includes decomposers, while a food web does not

• A food web is for spiders only

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NGSS.MS-LS2-3

Which of the following is an example of a prey animal?

• Lion

• Bear

• Rabbit

• Shark

Tags

NGSS.MS-LS2-2

How do decomposers contribute to the energy flow in an ecosystem?

• By producing energy from sunlight

• By breaking down dead material and releasing nutrients back into the soil

• By consuming primary consumers

• By competing with producers for sunlight

Tags

NGSS.MS-LS2-3

Which biome is characterized by very low temperatures and frost?

• Desert

• Tundra

• Grassland

• Tropical rainforest

What is the main source of energy for most ecosystems?

• Wind

• Water

• Sunlight

• Soil

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3