Topic 8: Organisms and Ecosystems

What is an ecosystem?

• A group of individuals of the same species living in a specific area

• An individual living thing

• All the living things in a particular area, along with the nonliving parts of the environment they interact with

• A group of similar organisms that can produce offspring

Which term describes an individual living thing?

• Organism

• Population

• Community

• Species

What is a population?

• All the populations that live in an ecosystem together

• A group of individuals of the same species living in a specific area

• The environment that provides an organism with the things it needs to live, grow, and reproduce

• A relationship in which two organisms live together and at least one benefits

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What is a community in ecological terms?

• All the populations that live in an ecosystem together

• All the living things in a particular area

• An environmental factor that restricts population growth

• A group of similar organisms that can produce offspring

Which term refers to a group of similar organisms that can produce offspring?

• Abiotic

• Biotic

• Species

• Habitat

What is a habitat?

• The struggle between organisms to survive

• The environment that provides an organism with the things it needs to live, grow, and reproduce

• Any nonliving parts of an organism's habitat

• A type of symbiotic relationship where both species benefit

What does 'biotic' refer to?

• Resources that are from non-living components

• Physical rather than biological

• Relating to or resulting from living things

• Any nonliving parts of an organism's habitat

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What is an abiotic factor?

• A type of symbiotic relationship where one species benefits

• Resources that are from living organisms

• Any nonliving parts of an organism's habitat

• Living or once-living parts of an organism's habitat

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What is competition in ecological terms?

• An organism that is killed or hunted by another

• An organism that kills another for food or nutrients

• The struggle between organisms to survive as they attempt to use the same limited resources

• A relationship in which two organisms live together and at least one benefits

Tags

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What is a predator?

• An organism that kills another for food or nutrients

• An organism that is killed or hunted by another

• A type of symbiotic relationship where both species benefit

• A type of symbiotic relationship where one species benefits and the other is neither helped nor harmed