Ecology in Biology

All of the living and nonliving things in an area that interact with each other are called a/an ______.

• community

• habitat

• population

• ecosystem

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The study of how living things interact with one another and with their environment.

• Biology

• Lithology

• Ecology

• Farmacology

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Which of these organisms is the secondary consumer?

• Owl

• Mouse

• Grass

• Grasshopper

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What point on the graph represents the carrying capacity?

• A

• B

• C

• D

A species that has a greater impact on the ecosystem than its number would indicate

• keystone species

• core species

• impact species

• essential species

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This photo is showing the same ecosystem in 2 scenarios: one with the sea otter and one without the sea otter. In the ecosystem without the sea otter, the ecosystem dynamics are completely changed. What term best describes the sea otter?

• Niche

• Climax community

• Pioneer species

• Keystone species

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condition that restricts a population's growth, such as space, disease, and food availability

• mutualism

• niche

• limiting factor

• predation

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When taken to a new habitat, non-native plants often threaten native plants of the new habitat.  Why do they do this?

• Non-native plants are able to mutate rapidly

• Non-native  plants cause native animals to relocate

• Non-native plants are able to be used for medicine

• Non-native plants compete with native plants for resources

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What effect will an invasive species have on the carrying capacity of an ecosystem?

• The carrying capacity will increase

• The carrying capacity for everyone will decrease

• The carrying capacity will only decrease for those in competition for same resource

• The carrying capacity for all animals will stay the same

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Kudzu has overgrown many parts of southern Missouri and native ground plants have disappeared from the area. This is an example of:

• Parasitism between kudzu and the native plants

• A predator prey relationship between ground plants and kudzu

• Competition occurring between the native and invasive species

• Commesalism occurring between the kudzo and native plants

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