‘Realized niche’ of an organism can be best described as:

1.  the area a species can occupy in the face of exploitive competition
2.  the habitat of a species within a community resulting from clumping
3.  the habitat that exists in nature as opposed to the ideal
4.  the life pattern that the organism actually assumes

Subtopic:  Introduction to Ecology |

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The competitive exclusion principle can be best expressed as:

1.  the more abundant species will exclude the less abundant species through competition
2.  competition for the same resources excludes species having different lifestyles
3.  no two species can occupy the same niche indefinitely when resources are limited
4.  larger organisms exclude smaller ones through competition as in the case of large trees controlling underbrush
Subtopic:  Population Interactions: Competition |
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Whale barnacles attach typically to baleen whales without harming them. This relationship is called as:

1. vitalism 2. mutualism
3. parasitism 4. commensalism

Subtopic:  Population Interactions: Commensalism, Protocooperation & Mutualism |
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A parasitism that does not involve feeding on the body of the host is:

1.ectoparasitism2.endoparasitism
3.parasitoids4.brood parasitism

Subtopic:  Population Interactions: Parasitism |
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The adaptation that a prey species avoid being detected by a predator would be:
1. Mullerian mimicry
2. Batesian mimicry
3. aposematic coloration
4. cryptic coloration

Subtopic:  Population Interactions: Predation |
 69%
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The appearance of an animal that warns predators it is toxic, distasteful or dangerous is called as:
1. Batesian mimicry
2. Mullerian mimicry
3. aposematic coloration
4. cryptic coloration

Subtopic:  Population Interactions: Predation |

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The chemical defence produced by plants against herbivory are:

1.primary metabolites2.secondary metabolites
3.cofactors4.pollens

Subtopic:  Population Interactions: Predation |
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All the following are symbiotic relations except:
1. monarch butterflies and viceroy butterflies
2. lichens
3. mycorrhizae
4. tapeworms and humans

Subtopic:  Population Interactions: Predation |

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To avoid herbivory milkweeds secret latex containing:
1. cardiac glycosides
2. stipules
3. mustard oils
4. strychnine

Subtopic:  Population Interactions: Predation |
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The two species physically interfere with one another by aggressively attempting to exclude one another from particular habitats in:

1.competitive exclusion2.predation
3.exploitative competition4.interference competition

Subtopic:  Population Interactions: Competition |
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