Eco

Ecosystem consist of

• Living organisms

• Environment

• Both

• None

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

Coral reefs are endangered by

• climate change

• overfishing

• pollution

• all of the above

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-4

NGSS.MS-ESS3-4

Are the corals animals?

• Yes, they are animals

• No, they aren't animals

Tags

NGSS.MS-LS1-1

In the underwater ecosystem the plants and animals DON'T work together

• True

• false

Tags

NGSS.MS-LS2-2

What influences if an ecosystem is sustainable?

• Ecosystems with many plants

• Ecosystems with many fish

• Ecosystems with more biodiversity of species

• Ecosystems with less biodiversity of species

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-3

NGSS.MS-LS2-1

A farmer digs a small pond in a pasture. The farmer adds young individuals from two species of algae-eating fish to the pond and plants some reeds around the edges of the pond. The farmer wants the pond to be a sustainable ecosystem. Which of the following would be most helpful in increasing the pond ecosystem’s sustainability?

• Decreasing the number of plant species around the edges of the pond

• Introducing older fish of the same species into the population of algae-eating fish

• Having a greater diversity of living organisms in the pond

• Adding gravel between the water and where the reeds are planted

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-2

What is sustainability in an ecosystem?

• Variety of organisms in an ecosystem

• Dominant community of plants and animals

• Changing sequence of communities

• Ability to maintain ecological processes over long periods of time; ability of an ecosystem to maintain its structure and function over time

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-3

What kind of Ecosystem is known as sustainable?

• The one in which all species are in balance

• The one in which there are no animals

• The one in which animals feed on each other

• None of the above

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-3

NGSS.MS-LS2-4

A farmer digs a small pond in a pasture. The farmer adds young individuals from two species of algae-eating fish to the pond and plants some reeds around the edges of the pond. The farmer wants the pond to be a sustainable ecosystem. Which of the following would be most helpful in increasing the pond ecosystem's sustainability?

• Decreasing the number of plant species around the edges of the pond

• Introducing older fish of the same species into the population of algae-eating fish

• Having a greater diversity of living organisms in the pond

• Adding gravel between the water and where the reeds are planted

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-2

Which of the following contributes most to promoting sustainability in an ecosystem?

• Lack of decomposers

• A balanced water table

• Variety of organisms

• A narrow temperature range

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-3