8.11AB Ecology Review

Which abiotic factor(s) do plants compete for in order to make their own food?

• water ONLY

• sunlight ONLY

• wind ONLY

• water AND sunlight

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Which is a true statement?

• Biotic factors only rely on abiotic factors to survive.

• Abiotic factors include all living things in the ecosystem.

• Abiotic factors include sun, water, and plants.

• Biotic and abiotic factors are both necessary for a sustainable ecosystem.

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Controlled forest fires are often used to clean up the underbrush of an ecosystem to promote a healthier ecosystem. How would they impact the organisms in the ecosystem?

• Organisms may have to temporarily move

• All organisms will die in the fire

• Only plants and trees will be impacted

• All organisms will increase in population in the first month after the fire

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What is the most likely adaptation for a rabbit population which once lived in the snow but now lives in shrubs and rocks due to increased global temperatures?

• They will see an increase in fur production

• They will become better swimmers

• They will grow longer ears

• Their coats will be darker

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Which is MOST likely to happen if a large number of phytoplankton are killed from runoff entering the ocean?

• The number of zooplankton would increase

• The number of salmon would probably decrease

• The number of porpoises would probably stay the same

• The Sun would probably not emit as much energy

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Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.
• There would be a decrease in the grass/flowers population.
• There would be a decrease in the mice population.
• There would be an increase in the grass/flowers population.

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If additional snakes are introduced into this ecosystem, there will most likely be an immediate decrease in the _________.  

• hawk population
• rabbit population
• wildflower population
• grass population

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Where the better adapted organisms survive to pass traits along to offspring. (8.11B)

• Evolution

• Natural Selection

• Extinction

• Artifical Selection

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Natural disasters are examples of ________ ecological change (8.11B).

• long-term

• short-terrm

• no-term

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Climate change and plate tectonics are examples of _____ environmental change (8.11B).

• long-term

• short-term

• no-term

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