Science Ecosystems

What is the source of all the energy in an ecosystem?

• air

• grass

• sun

• water

Tags

NGSS.MS-LS1-6

In a food web, the ORIGINAL source of energy comes from the ______.

• grass

• animals

• sun

• water

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

WHat is an ecosystem?

• A scientist who studies ecosystems

• A community of organisms together with its environment

• the ability to make things move or change

• a living thing, such a a plant or animal

What is a food web?

• A scientist who studies ecosystems

• a diagram that shows what eats what in an ecosystem

• Something scientists make to answer questions about the real world

• To affect one another

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

What is the role of decomposers in an ecosystem?

• They produce oxygen through photosynthesis

• They eat living plants and animals

• They break down dead organisms and return nutrients to the soil

• They help pollinate plants

Tags

NGSS.MS-LS2-3

Which of the following is an example of a producer in an ecosystem?

• Lion

• Grass

• Snake

• Eagle

Tags

NGSS.MS-LS2-3

Why is biodiversity important in an ecosystem?

• It ensures that all organisms are the same size

• It increases the amount of pollution

• It helps the ecosystem be more resilient to changes

• It makes the ecosystem look more attractive

Tags

NGSS.MS-LS2-5

Which of the following best describes the role of decomposers in an ecosystem?

• They produce their own food through photosynthesis.

• They consume other organisms for energy.

• They break down dead organisms and waste, returning nutrients to the soil.

• They are the primary consumers of plants.

Tags

NGSS.MS-LS2-3

What is the primary source of energy for most ecosystems?

• Wind

• The Sun

• Water

• Soil

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which of the following best describes a producer in an ecosystem?

• An organism that eats other animals

• An organism that breaks down dead material

• An organism that makes its own food through photosynthesis

• An organism that only eats plants

Tags

NGSS.MS-LS2-3