Exam 5: Biodiversity - Species Interactions - and Population Control

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When populations of two different species interact over time in a way that drives changes in their gene pools,it can be said that __________________ occurs.​

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​coevolution

A relationship in which one species benefits while the other is neither helped nor harmed to any significant degree best illustrates ____.​

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C

Individuals within a population may also have slightly different tolerance ranges for temperature or other factors because of small differences in their genetic makeup,health,or age.​

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True

​The normally gradual change in species composition in a given area in response to changing environmental conditions is called ____.

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Match the items listed below with the appropriate choice. -Your housecat kills the mice in your yard and around your house.​

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​Prey species are those that feed directly on all or part of another organism.

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Scientists hypothesize that some southern sea otters might be dying because coastal area cat owners flush cat litter containing parasites in feces down their toilets or dump it in storm drains that empty into coastal waters.

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K-selected species ____.​

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​Some spiders and poisonous snakes use venom to paralyze their prey and to deter their predators.This is known as __________________.

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​Hummingbirds consume nectar from flowers,and transfer pollen in the process.This is an example of ____.

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​Explain why primary ecological succession usually takes hundreds or thousands of years,while secondary ecological succession can occur much more quickly.

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The venom of a poisonous snake is an example of secondary ecological succession.

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A relationship in which both species benefit best illustrates ____.​

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Inertia can also be referred to as ____.​

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​In a desert environment,the amount of plant growth is controlled by the amount of precipitation.In this case,precipitation is a(n)____.

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Competition within a species is called ____.​

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One threat to kelp forests is ____.​

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Four variables govern changes in population size- births,deaths,__________________ and emigration.

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Explain why a population might follow an S-shaped curve of growth.​

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Which type of interspecific interaction could best be described as a "win-win" interaction?​

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