Population and Ecosystems Quiz

What is an ecosystem?

• A single organism living in its natural habitat.

• A community of organisms interacting with each other and their physical environment.

• A collection of different species living in the same area.

• A specific type of organism adapted to a particular environment.

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

• Sunlight

• Temperature

• Trees

• Rocks

What defines a population in ecology?

• All the ecosystems in a particular area.

• A group of different species living together.

• A group of the same species living in the same area.

• All the biotic and abiotic factors in an environment.

What is a habitat?

• The role an organism plays in its ecosystem.

• The non-living components of an ecosystem.

• The place where an organism lives.

• A large area like a forest or desert.

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

• Bacteria in the soil

• The type of fish in a lake

• The amount of rainfall in a region

• The birds in a forest

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What is the difference between a community and a population?

• A community consists of one species, while a population includes many species.

• A community includes all living things in an area, while a population includes only specific organisms.

• A community includes all living things in an area, while a population includes only one species.

• There is no difference; they are the same.

Which term describes a group of organisms of the same species that live in the same area and interbreed?

• Ecosystem

• Community

• Population

• Habitat

What is the primary focus of ecology?

• The study of individual organisms and their roles in the environment.

• The study of how living organisms interact with each other and their environment.

• The study of human effects on the environment.

• The study of abiotic factors only.

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Which of the following best defines a species?

• A group of similar ecosystems.

• A group of organisms that can produce offspring.

• A type of habitat.

• A classification of abiotic factors.

Which of the following is NOT a biotic factor?

• Plants in a rainforest

• Fish in a river

• Temperature of ocean water

• Insects in a garden

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