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Introduction
There
are lots and lots and lots and lots and lots of different
types of organisms out there. Taxonomy attempts to
organize all of these organisms into increasingly smaller
& smaller groups until you are left with a group of
all the same type of organism (namely, a species).
Organisms
first get classified into one of five KINGDOMS. Each kingdom
has certain defining characteristics. The kingdoms, which
are a large & varied group of organisms, then get divided
up into smaller subgroups (called phyla), which in tern
get subdivided, and so on ...
The
modern system of naming gives each living thing 7 names.
Each name is a little more specific than the one before
it. The categories are (in order from least to most specific):
Kingdom
| Phylum | Class | Order | Family | Genus | Species
Memory
trick to learn the order - remember
"Kings Play Chess On Fine Glass Surfaces." or
"King Philip Came Over For Good Spaghetti."
(The first letter of each word in the sentence is the first
letter of each classification group & they're listed
in the correct order.)
The Five Kingdoms
Monera
This kingdom may now be divided into two kingdoms:
Archaebacteria and Eubacteria
- Type
of cells: Prokaryotic
- Cellular
organization: Unicellular/Colonial
- Type
of reproduction: Asexual by binary fission
- Food
production: Autotropic
- Organisms:
Bacteria
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Protista
- Type
of cells: Eukaryotic
- Cellular
organization: Unicellular/Colonial
- Type
of reproduction: Asexual by mitosis
- Food
production: Heterotrophic or Autotropic
- Organisms:
Ciliates
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Fungi
- Type
of cells: Eukaryotic
- Cellular
organization: Multicellular
- Type
of reproduction: Sexual/Asexual
- Food
production: Heterotrophic by absorption
- Organisms:
Mushrooms
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Plantae
- Type
of cells: Eukaryotic
- Cellular
organization: Multicellular
- Type
of reproduction: Sexual/Asexual
- Food
production: Autotrophic by photosynthesis
- Organisms:
Herbs, Shrubs, and Trees
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Animalia
- Type
of cells: EukaryoticCellular organization:
Multicellular
- Type
of reproduction: Sexual/Asexual
- Food
production: Heterotrophic by ingestion
- Organisms:
Invertebrates and Vertabrates
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Naming of Organisms
Have
you ever thought about why we name things at all? If you
have, you probably realized that names are very important
for communicating information to others. If we all created
our own names for plants or animals, we'd have no clue what
anyone else was talking about. What about rolly-poly bugs?
People in others areas may think of them as pill bugs or
sow bugs. Inconsistencies like these led to the creation
of a system of naming things that allows scientists all
over the world to communicate more precisely.
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| Carolus
Linnaeus
1707-1778 |
Carolus
Linnaeus, a Swedish botanist, developed a classification
system for life forms during the 1700's. It is his system,
with modifications, that we use today. After experimenting
with several approaches, Linnaeus refined and standardized
a binomial (double) naming system. He designated one Latin
name to indicate the genus, and one as a "shorthand"
name, or species epithet, for the species. Linnaeus
picked Latin because it was the universal language of science.
Any
species known to science is named with a double name in
the format:
Genus species
or Genus species
Taxonomy:
Name Game Rules
The
science of naming organisms is called taxonomy. While it
can get very complicated, the following basic rules apply:
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No two different species can have the same combination
of genus and specific names.
- No
species is given more than one combination of genus and
specific name.
- Genus
name is always capitalized & italicized or underlined.
- Specific
epithet is not capitalized, but is always italicized or
underlined.
Where
are we in the Name Game?
Taxonomists
have been relatively busy since Linnaeus' time. Over 1.5
million species have been named and described. However,
it is estimated that as many as tens of millions of species
have yet to be discovered. Many of these are in remote parts
of the world-in the Mayan forests of Belize and the mountains
of Burma.
What's
In a Name?
Ackee??

In Jamacaic,
"ackee" with the biological name Blighia sapida,
is a part of Jamaica's national dish "Ackee and Saltfish."
However in Barbados, "ackee" with the name Melicoccus
bijugatus is soft jelly-like flesh fruit. In the rest of
the Caribbean, the "Bajan Ackee" is actually called
"guinep". Other names include: Canep, Chenep,
Kenip, Mapo, Skinip, Spanish Lime, Tjennét.
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