Category 4 STAAR Review

How would a reduction in the snail population effect this ecosystem?

• It would cause decreased competition between spiders and owls.

• It would cause decreased competition between spiders and wood mice.

• It would cause increased competition between grasshoppers and beetles.

• It would cause increased competition between wood mice and shrews.

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Based on the table, native organisms will be negatively affected by competition with lionfish if they-

• hunt in fresh water.

• live on land.

• are longer than 45 centimeters.

• eat invertebrates.

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One explanation for the increasing wild hog population is -

• they are able to escape hunters.

• other wildlife populations have been reduced.

• food supplies have increased across the state.

• they are able to survive in a variety of environments.

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Which table correctly categorizes short- and long term changes?

• A

• B

• C

• D

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Which of the following is most likely to have a positive effect on biodiversity?

• Increasing people's awareness of pollution.

• Replanting trees and other plants in a park.

• Recycling glass, aluminum, and plastic.

• Pouring oil onto the ground.

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Which of these correctly sequences the diagrams to show the process of ecological succession happening in an ecosystem?

• Z, W, X, Y

• Y, X, W, Z

• X, Y, W, Z

• W, Z, Y, X

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Which of these pictured is the most stable?

• W

• X

• Y

• Z

This graph illustrates the effect of pesticides on mosquitoes. Pesticides are applied to the mosquito population every year.

Was this a short-term or a long-term change to the environment?

• short-term

• long-term

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How might the information (in the picture) most directly affect the ocean?

• Fish populations increase along the coasts.

• Runoff from coastal cities carries more pollutants.

• More artificial reefs appear off the coasts.

• Shark attacks decrease.

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Which of the following processes is primarily responsible for the formation of sedimentary rocks?

• Erosion and deposition

• Melting and cooling

• Heat and pressure

• Volcanic activity

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