Generation Genius Ecosystems

Ecosystems depend on organisms to _____ with each other to maintain stability.

• interact

• build

• eat

• grow

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An invasive species is a plant or animal that is ____ to an ecosystem.

• not native

• just visiting

• beneficial

• not real

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Honeybees collect nectar from flowers to make honey. When a honeybee goes to a flower, some of the pollen gets on its legs. This pollen drops into the next flower the honeybee visits. Which statement BEST describes the role of honeybees in the life cycles of flowering plants?

• Honeybees help spread plant seeds.

• Honeybees help plants photosynthesize.

• Honeybees help flowering plants reproduce.

• Honeybees provide flowering plants with energy.

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Environments include both _________ ____ ________ things.

• resources and factors

• air and water

• living and nonliving

• buildings and animals

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For populations to continue to survive, some organisms in the population must ___________.

• grow

• reproduce

• eat

• die

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Organisms are the _____ things in an ecosystem.

• factors

• living

• resources

• nonliving

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Wildlife biologists study_____.

• populations in ecosystems

• only wild animals

• only plants

• farm animals

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What is an ecosystem?

• A community of living organisms and their physical environment interacting as a system

• A group of the same species living in an area

• A single organism and its habitat

• A non-living component of the environment

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

• Sunlight

• Temperature

• Plants

• Water

What role do decomposers play in an ecosystem?

• They produce energy through photosynthesis

• They consume primary producers

• They break down dead organisms and recycle nutrients

• They are the top predators in the food chain

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