Ecosystems Sustainability

What is an ecosystem?

• A community of people living in a particular area

• A single species and its non-living environment

• A community of living organisms in conjunction with the nonliving components of their environment

• A collection of planets and their moons in a solar system

Tags

NGSS.MS-LS2-3

Which of the following is an example of an abiotic factor in an ecosystem?

• Plants

• Animals

• Sunlight

• Bacteria

Tags

NGSS.MS-LS2-3

In a food chain, what is the term for organisms that produce their own food?

• Herbivores

• Carnivores

• Producers

• Decomposers

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

• They capture energy from the sun

• They consume living plants

• They break down dead material and recycle nutrients

• They prey on other animals

Tags

NGSS.MS-LS2-3

What is the primary source of energy for most food webs?

• Wind

• The Sun

• Geothermal heat

• Water currents

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is a biotic factor in an ecosystem?

• Temperature

• Humidity

• Fish

• Rocks

How does deforestation affect the carbon cycle?

• It increases the amount of carbon dioxide in the atmosphere

• It decreases the amount of carbon dioxide in the atmosphere

• It has no effect on the carbon cycle

• It increases the amount of oxygen in the atmosphere

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

NGSS.HS-LS2-5

What is the term for a series of organisms each dependent on the next as a source of food?

• Food web

• Food chain

• Ecosystem

• Biome

Which of the following human activities has the least impact on the environment?

• Industrial farming

• Urban development

• Recycling

• Deforestation

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

In a food web, which trophic level typically has the least amount of energy available?

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers

Tags

NGSS.MS-LS2-3