Understanding Ecosystems

What is an ecosystem?

• A single species of animal in a habitat

• A type of weather pattern

• An ecosystem is a community of living organisms and their physical environment interacting as a system.

• A collection of plants in a garden

What are biotic factors in an ecosystem?

• Biotic factors are the living components of an ecosystem.

• Biotic factors are the physical environment of an ecosystem.

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

• Biotic factors are the chemical substances in an ecosystem.

Can you name three abiotic factors?

• Soil, air, minerals

• Plants, animals, fungi

• Sunlight, temperature, water

• Wind, gravity, clouds

What is the difference between a population and a community?

• A population is a small group; a community is a large group of the same species.

• A population is a group of different species; a community is a single species.

• A population is a group of the same species; a community is made up of different species.

• A population includes all species in an area; a community is just one species.

How do populations interact within a community?

• Populations interact through relationships like predation, competition, and mutualism.

• Populations interact solely through symbiosis.

• Populations do not interact at all within a community.

• Populations interact only through migration.