Ecology Review

Ecology is the study of .

• life

• Interactions among organisms and their environments

• interactions among organisms

• how traits are passed from parents to offspring

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Which of the following is abiotic?

• A tree in a forest.

• Wood from the tree on the forest floor.

• A termite on the tree.

• The soil the tree is growing in.

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Which of the following is biotic?

• Food

• Water

• Air

• Light

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What is made up of all the populations in an area?

• Habitat

• Niche

• Community

• Ecosystem

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A close, ongoing relationship between species in which at least one is benefiting and the other is not helped or harmed.

• Commensalism

• Symbiosis

• Predator & Prey

• Mutualism

An ongoing relationship in which one organism benefits and the other is harmed.

• A. Predator & Prey

• B. Mutualism

• C. Commensalism

• D. Parasitism

There are birds that eat the food from between the teeth of alligators, leaving the alligators with clean teeth and the birds with a meal. What type of ongoing relationship is this?

• A. Predator & Prey

• B. Mutualism

• C. Commensalism

• D. Parasitism

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NGSS.MS-LS2-2

Which of the following is a predator and prey relationship?

• A. Cow and grass.

• B. Vulture and a dead lion.

• C. Tick and a deer.

• D. Spider and a fly.

Some limiting factors that affect populations include lack of food, lack of water, lack of living space, and the spread of disease.

• True

• False

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An organism’s habitat is where it lives.

• True

• False