Energy and Ecosystems Review

Which best describes the roles of the organisms in the picture?

• A. two energy sources and two producers

• B. two energy sources and two consumers

• C. one energy source, two producers, and one consumer

• D. one energy source, one producer, and two consumers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Many animals do not eat onion plants because of their smell. Why are onion plants considered producers even though animals do not eat them?

• A. They attract insects.

• B. They make their own food.

• C. They are eaten by other producers.

• D. They get their food by eating living things.

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NGSS.MS-LS1-6

Mrs. Gonzalez's seventh-grade class studied food webs after they visited the Miami River. Several students forgot to include bacteria and fungi in their diagrams. Why are bacteria and fungi important in a food web?

• Bacteria and fungi break down dead organisms into nutrients.

• Bacteria and fungi transform carbon dioxide into oxygen.

• Bacteria and fungi create energy from sunlight.

• Bacteria and fungi consume living animals.

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NGSS.MS-LS2-3

The food web below is missing the direction of energy flow between organisms.

• Sparrow → Hawk → Rabbit → Grass → Sun

• Snake → Toad → Grasshopper → Grass → Sun

• Sun → Grass → Grasshopper → Sparrow → Hawk

• Sun → Grass → Hawk → Snake → Rabbit → Grass

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Where do animals get energy they need to survive?

• from the water they drink

• from the food they eat

• from the minerals in the soil

• from the rays of the Sun

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NGSS.MS-LS2-3

Choose TWO effects of bringing tigers into the environment.

• The tigers will increase the number of zebras.

• The lions will have less food.

• The tigers will reduce the number of wolves.

• The zebras will have more food.

• The gazelle will have less food.

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What do the hyenas eat in the savanna?

• Grass

• Acacia trees

• Livestock

• Wolves

Tags

NGSS.MS-LS2-1

What is the purpose of putting wolves on the savanna?

• To increase the number of lions

• To eat the hyenas

• To eat the grass

• To protect the gazelles

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is the main food source for the hyenas in the savanna?

• Grass

• Acacia trees

• Livestock

• Wolves

What types of organisms make their home in a forest ecosystem?

• Only plants.

• Only animals.

• Many different types of animals and plants.

• Only fungi.