Classification

Classfication Unit- Chapter 17 Intro to the 6 kingdoms
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classification
the grouping of objects or information based on similarities
taxonomy
the branch of biology concerned with the grouping and naming of organisms
Linnaeus
laid the foundation for the modern system of classification that we still use today
binomial nomenclature
a system for giving each organisms a two word scientific name
phylogeny
evolutionary history of a species
latin
language of scientific names
dichotomous key
a list of characteristics organized so that an organism can be identfied
kingdom
What group of taxa is the broadest?
species
What is the most specific group of taxa?
kingdom
phylum
class
order
family
genus
species
List the 7 taxa in order (starting with the most general)
taxa
a series of categories that organisms are grouped into are called _____.
cladogram
a tree-like relationship-diagram
What is the correct way to write the scientific name of humans using binomial nomenclature?
Homo sapiens (need to be in italics)
What is a limitation of the Linnaean classification system?
it is based on physical characteristics alone; doesn't account for DNA
What are the advantages of scientific names over common names?
unique/specific and universal
Cladistics is a classification system based on _____.
common ancestory
What is the strongest evidence that two species are related?
similar genes
Cladograms are constructed by identifying _____.
derived characters
What is a clade?
any group of species that has descended from a common ancestor
What is a node?
where a branch of cladogram splits off
What is a derived character?
shared traits within a species
Linnaeaus' classification system is based on what?
physical similarities
Kingdom Bacteria and Kingdom Archaea use to be in one kingdom called __________.
Monera
What are the 3 domains accepted my most scientist?
Bacteria
Archaea
Eukarya
How do fungus get energy?
decomposition
Archeae can be found where?
extreme environments
What are the six kingdoms we have today?
Bacteria
Archaea
Protist
Fungus
Plant
Animal
What is the most abundant group of organisms on Earth?
bacteria
Domains Bacteria and Archaea both have what type of cells?
prokaryotic
Organisms with a true nucleus would be put in domain ___.
eukarya
What kingdoms are included in the domain Eukarya?
Protista, Fungi, Plant, and Animal
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