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16 Cards in this Set
- Front
- Back
What term describes the relationship that is beneficial to both species involved?
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mutualism
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What classification of mutualists CANNOT survive or reproduce without the mutualistic interaction?
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obligate
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What classification of mutualists CAN survive without the mutualistic interaction?
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facultative
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What classification of mutualists have species-specific interactions?
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specialists
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What classification of mutualists have an association with a wide diversity of mutualistic partners?
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generalists
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What classification of mutualists are free-living?
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nonsymbiotic
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What classification of mutualists involve much more dependence (obligatory) and the species must live together as one?
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symbiotic
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What mutualistic relationship do coral and zooxanthellae have?
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symbiotic
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Nitrogen-fixing bacteria (Rhizobium) convert gaseous __________ from the atmosphere into a form of Nitrogen that plants can use.
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Nitrogen (N2)
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Many land plants rely on ________ relationships with fungi to provide them with inorganic compounds and trace elements.
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mycorrhizal
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__________ have formed associations with less than 70% of all plant species. Mycelia penetrate host root cells to form a finely bunched network (arbuscule).
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Endomycorrhizae
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__________ are associated with ~10% of plant species (most are woody). Mycelia penetrate between root cells and develop outside the root.
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Ectomycorrhizae
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_________ visit plants to exploit a source of food and inadvertently pick up pollen and carry it to the next plant they visit.
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Nectivores (usually generalists)
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___________ are plants that produce seeds with an ant-attracting food body on the seed coat.
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Myrmecochores
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__________ are fruit-eating animals and eat only the tissue around the seed.
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Frugivores
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Some plant seeds must actually be ________ by passage through the animal's digestive tract.
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scarified
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