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9 Cards in this Set
- Front
- Back
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Describe what it means for a species to be "known" to science.
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A known species has a published written account and has a deposited holotype specimen.
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Approximately how many species are known to science today, and what is the distribution?
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Approximately 1.8 million species are known to science.
751,000 Insects 285,000 Vascular Plants 281,000 Non-insect animals 69,000 Fungi 30,800 Protozoans 26,900 Algae 16,600 Bryophytes 4800 Bacteria 1000 Viruses |
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Which group of organisms is the most diverse?
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Insects
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Which group of organisms has been the most thoroughly catalogued?
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Vertebrates
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Which group(s) of organisms continue to yield a high number of new species?
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Insects and Arachnids
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How many species are estimated to exist on Earth?
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5-30 million species
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Name and describe the three basic ways in which a new species is found.
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Discovered: A species has never been seen before is found and described
Recovered: A species that has already been collected but has not described to science undergoes formal analysis and publishing Extrapolated: A species thought to be part of another species is reclassified based on new information |
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What is a cryptic species?
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A species that is anatomically identical to another species but displays genetic and/or behavioral differences
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Define Holotype and Allotype
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Holotype: A single physical example of a species that serves as the template for identifying members of said species
Allotype: A physical example of a species that is the opposite sex of the hollotype |
