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

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

• Habitat

• Niche

• Community

• Ecosystem

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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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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The living world is organized in levels. Biotic and abiotic factors also can be arranged into levels of biological organization. Put the words below in order from the least complex to the most complex

• Community, Organism, Biome, Population, Biosphere, Ecosystem

• Organism, Population, Community, Ecosystem, Biome, Biosphere

• Organism, Biome, Population, Community Biosphere, Ecosystem