Ecosystem Review

What determines the carrying capacity of an ecosystem?

• Limiting factors

• Abiotic factors, only

• Biotic factors, only

• The age of the organisms in an ecosystem

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What is biodiversity?

• A way of describing the variety of life on Earth

• The likelihood that a species will become endangered

• A species that is highly successful at outcompeting others for space and food

• The way organisms depend on each other in a food chain

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What can loss of biodiversity lead to?

• More successful species

• More productive ecosystems

• Less stable ecosystems

• Less endangered and/or extinct species

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Ecology is the study of:

• How living things interact with each other

• How living things interact with the nonliving parts of the environment

• How environments change over time

• All of these

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What is a population?

• A group of 2 or more species living together

• A group of individuals of the same species living together

• A species and the habitat in which the species live

• A collection of environments with similar climate

An ecosystem includes:

• Individuals of the same species only

• Living things in an area, but not nonliving things

• A community of living things together with the nonliving parts of the environment

• A collection of environments with similar flora, fauna, and climate

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Which of the following is not a living thing?

• Grass

• An ant

• Milk

• Disease caused by bacteria

What type of organism feeds only on plants?

• Herbivore

• Omnivore

• Carnivore

• Both Herbivore and Omnivore

What does a good chain illustrate?

• How organisms compete with others for resources

• The feeding relationship between organisms

• The way organisms reproduce

• The way organisms make food using energy from the sun

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The first organism in a food chain is always:

• A producer

• A consumer

• A decomposer

• A scavenger

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