Ch15- Classification
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45 Terms
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Why do biologists use classification
Organisms are numerous and diverse
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The study of organisms uses (small, large, both) categories of organization
Both
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Scientists assign each kind of organisms a universally accepted name in the system called...
Binomial Nomenclature
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T/F: For many species, there are often regional differences in common names
True
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In taxonomy, a group at any level of organization is referenced as a...
Taxon
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What fraction of organisms have been identified?
A fraction of all species
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In the scientific version of a species name, which of the terms is capitalized?
The 1st term which is the Genus
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Based on names, you know that baboons Papio annumbis and Papio cycaocehalus do not have the same...
Species
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How does binomial nomenclature compare to early versions of naming organisms?
They are shorter names, 2 instead of say 7
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The 2nd part of the name is unique to...
The species in it's genus
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Often the second part of the name is...
Latinized description of a trait or latinized name
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Before Linnaeus, names were problematic because they were...
Very long
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In Linnaeus system, how many categories were there?
7
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A genus is composed of a number of related...
Species
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Several different classes can be found directly under...
Phylum
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Which two kingdoms did Aristotle recognize?
Plants and animals
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Animals that are warm blooded, have body hair, produce milk, are grouped as what taxon?
Mammalia
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The most general and largest taxon is...
Kingdom
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The traditional classification tended to only look at what to categorize them?
Similarities in appearance
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In evolutionary classification, species within one genus should...
Be more similar to each other than to other species
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What do all living organisms have in common?
They are made of DNA
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What is true about dissimilar organisms such as a cow and yeast? (Are they even tax related?)
Relatedness is determined by common genes
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Scientists have found that humans and yeasts have...
Similar genes to make the same protein
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All organisms in the kingdoms plant, fungi, and animalia, have this in common
Eukaryotes
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Which kingdom contains heterotrophs and cell walls that are made of chitin?
Fungi
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What three kingdoms were a system used by scientists in the late 1800s?
Animals, Plants, and Protista
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Which of the kingdoms used to be grouped with plants?
Fungi
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Some scientists propose that the kingdom Protista should be broken up into several kingdoms. Why would they want this?
The kingdom of Protists is very diverse
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What domain has Eubacteria in it?
Bacteria
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What domain contains organisms that live in extreme environments like ocean volcanoes at the bottom of the ocean?
Archaea bacteria
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What two domains have only unicellular organisms in them?
Archaea bacteria and eukaryote bacteria
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Having three domains today means that there are fundamental differences between bacterial and archaeobacteria. Is this a true statement?
Yes
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Look at the bear taxonomy in the book pg. 326. Which level has the greatest number of organisms?
The Kingdom
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If you are in the Order carnivore, you have to also be in which taxons?
Phylum Chordata
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What organisms are in the genus Ursus?
Black bears and grizzlies
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Which taxon has the greatest level of diversity?
Kingdom
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If you were given the species name of an organism, such as coli, what is the largest taxon you could also assign that organism?
Genus
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What is the main difference between the domain archaeobacteria and the domain Eubacteria?
Presence of a cell wall
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If you know that an organism has a cell wall and is multicellular, what kingdom does it belong to?
Plant and Fungi
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Using the chart, can you tell which domain has the greatest number of organisms?
No
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Using the chart, if an organism has a cell wall, chloroplast, is unicellular, and has a nucleus, what is the domain?
Eukaryote domain
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Using the taxon chart, which organisms are most closely related to each other?
Humpback whale and Spider monkey
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Which taxon chart category indicates mammal or not?
Class
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What is the order of the taxons?
Kingdom, Phylum, Class, Order, Family, Genus, Species
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Would an organism called Clostridium botulinium, be taxonomically related to any organism on this chart?
No
Note 
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