AnswersAZ-Environmental Science A SC311Unit Test

Unit Test — Cumulative exam Answers

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The carbon cycle involves an exchange of carbon between _______.a.the geosphere and atmosphereb.the atmosphere and hydrospherec.the geosphere and hydrosphered.the geosphere, hydrosphere, and atmosphere

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Which of the following best describes daily temperatures in deserts?a.hot during the day and cold at nightb.hot during the day and warm at nightc.cool during the day and very cold at nightd.they depend upon the type of desert and its location

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Carnivores have sharp, pointed teeth that allow them to tear flesh from prey. What type of adaptation is this?a.Behaviorb.Biochemicalc.Physiologicald.Ecological

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Mammals do not live in the tundra, because the climate is too extreme.

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Temperatures in the tundra range from extreme highs to extreme lows.

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Earth’s cycles provide organisms with continued access to usable elements necessary for sustaining life.

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Which of the following is not a reason for cluster distribution of organisms?a.localized availability of resourcesb.herd behaviorc.hive behaviord.territorial behavior

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Deciduous forests receive most of their 30 to 60 inches of annual precipitation in the summer.

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Which of the following is not a method to determine population size?a.mark/recaptureb.samplingc.hypothesisd.observation

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A species of plants that adapts to become more tolerant of toxic heavy metals produced as a result of human mining activities is an example of _______.a.stabilizing selectionb.disruptive selectionc.directional selectiond.mutation

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Yellowstone National Park has 124 wolves living in it. The park covers 3472 square miles. What is the population density of wolves living in Yellowstone?a.28 wolves/mib.0.0357 wolves/mic.82 wolves/mid. 43 wolves/mi

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Why do deciduous trees lose their leaves?a.Deciduous trees lose their leaves to prevent oxygen loss.b.Deciduous trees lose their leaves to defend from predators.c.Deciduous trees lose their leaves to prevent nutrient and water loss.d.Deciduous trees die in winter.

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Mammals were not contemporaries of the dinosaurs.

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Because of their small supplies of water, deserts are not a crucial biome on Earth.

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Which of the following is considered an arid biome?a.grasslandb.desertc.savannad.rainforest

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Why do deciduous trees lose their leaves in the fall?

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Which of the following is a way humans have impacted the rainforests, but not the tundra?a.oil drillingb.miningc.overgrazingd.logging

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Jackrabbits’ large ears are an adaptation for _______.a.hunting preyb.enhanced hearingc.storing waterd.dissipating heat

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Explain the function of the thick bark found on deciduous trees.

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Which of the following animals is not found in the tundra?a.polar bearb.caribouc.pangolind.wolverine

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