Ecology exam questions for chapters 8-12
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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show | The flower has several other pollinators with differing traits.
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A food web is a better representation of a community than a food chain because most interactions among organisms are what? | show 🗑
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show | when a commensal species expands another's niche space.
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A remora feeds on the scraps that escape from a shark's mouth while feeding. It has no clear positive or negative impact on the shark. This is an example of what? | show 🗑
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show | a realized niche
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show | resource competition
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An ecological niche is typically ________ dimension/s. | show 🗑
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An invasive bullfrog consumes a Taricha newt and dies immediately. What can you say about the toxin? | show 🗑
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As predators feed on prey, prey abundances decrease over time. This is predicted to result in a(n) what? | show 🗑
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show | population of the prey species decreases
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show | slows down
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Hummingbirds are attracted to red flowers with long tubes. What might you predict would happen to flowers if hummingbirds become the predominant species on a remote island? | show 🗑
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In an area with high soil nutrient availability, mycorrhizal fungi are what? | show 🗑
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In comparison to desert habitats, urban landscapes on average have a ______ number of bird species? | show 🗑
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In most plant-pollinator interactions, plants species are pollinated by _______ | show 🗑
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show | are low in nutrients
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show | from a population with no garter snakes
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show | Species B uses more resources per individual
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The carrying capacity for species 1 is 1000 and for its competitor, species 2, it is 500. What is the maximum abundance of species 1 if 250 of species 2 coexists with it? | show 🗑
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show | Grinnell
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The globeflower can host _______ | show 🗑
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The length of a butterfly tongue perfectly matches the nectar tube of a flower it pollinates. This is an example of what? | show 🗑
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show | tetrodotoxin
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show | adaptive radiation
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show | highly resistant garter snake population
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show | realized niche
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show | most species negatively, but a few positively
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show | population growth of species 1 in presence of species 2
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show | A parasitoid typically always kill its host
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What might happen over time if two bird species competed for the same seed resource and one preferred larger seeds while the other species preferred smaller ones? | show 🗑
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show | natural selection favors individual plants that produce the largest seeds
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show | competition
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show | commensalism
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show | 750
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show | d. + -
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_____ occurs when two species undergo reciprocal evolutionary change through natural selection | show 🗑
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The ____ niche is the portion of a fundamental niche in which species can exploit as a result of interactions with other species. | show 🗑
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show | diffuse coevolution
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The range of physical and chemical conditions under which each species can persist (survive and reproduce) and the array of essential resources it utilizes are referred to as its ecological _____ | show 🗑
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show | mycorrhizal
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show | mutualism
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show | neutral
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show | predation
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When one species reduces or adversely affects the population of another, but the affected species has no influence in return, the relationship is referred to as a ______ | show 🗑
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When the interaction is detrimental to the population of both species (-,-) it is referred to as _______ | show 🗑
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show | True
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T/F: An organism's realized niche is always smaller than its fundamental niche. | show 🗑
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show | False
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show | False
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T/F: Parasitoidism is a form of mutualism. | show 🗑
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show | True
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show | True
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T/F: The interaction between two species usually influences all individuals within the respective populations equally. | show 🗑
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T/F: The relationship between nectar-producing flowers and nectar-feeding birds is a mutually beneficial interaction. | show 🗑
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show | True
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