Organism, Population, Community, or Ecosystem?

True or False: Ecosystems include both living and non-living things.

• True

• False

• Only living things

• Only non-living things

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NGSS.MS-LS2-3

What is the difference between a population and a community?

• A population consists of one type of organism, while a community includes multiple populations interacting with each other.

• A population includes multiple types of organisms, while a community consists of only one type.

• A population is a group of organisms of different species, while a community is a single species.

• A population is a small part of a community, which includes all living organisms in an area.

Can a community exist without an ecosystem?

• Yes, a community can exist independently.

• No, a community is part of an ecosystem.

• A community can exist in isolation but is affected by the ecosystem.

• Communities and ecosystems are unrelated concepts.

Give an example of a community.

• A forest community that includes trees, birds, insects, and other organisms.

• A single tree in a park.

• A group of people living in a city.

• A collection of rocks in a desert.

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NGSS.MS-LS2-2

What are biotic factors?

• Biotic factors are the non-living components of an ecosystem.

• Biotic factors are the living components of an ecosystem, such as plants, animals, and microorganisms.

• Biotic factors are the chemical substances in an ecosystem.

• Biotic factors are the physical features of an ecosystem.

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NGSS.MS-LS2-2

What is biodiversity?

• Biodiversity refers to the variety of life in a particular ecosystem, including the number of different species.

• Biodiversity is the total number of organisms in a specific area regardless of species.

• Biodiversity only includes the number of plants in an ecosystem.

• Biodiversity refers to the genetic differences within a single species.

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NGSS.MS-LS2-5

What does 'niche' mean in ecology?

• A niche is a type of plant species found in a specific area.

• A niche is the role or function of an organism or species within an ecosystem.

• A niche refers to the physical space an organism occupies.

• A niche is a term used to describe the climate of a region.

What is a population?

• A population is a group of the same type of organism living in a specific area.

• A population is a collection of different species in an ecosystem.

• A population refers to the total number of organisms in a habitat.

• A population is a group of organisms that have migrated from one area to another.

What is a food web?

• A simple chain of organisms that eat one another.

• A complex network of feeding relationships among organisms in an ecosystem.

• A type of food chain that only includes plants.

• A diagram that shows the energy flow in a single species.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What is a community in an ecosystem?

• A community is a single population living in an ecosystem.

• A community is several populations living and interacting with each other in an ecosystem.

• A community is the physical environment where organisms live.

• A community is a group of organisms of the same species.

Tags

NGSS.MS-LS2-2