Write the hierarchy of life
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Atom
Element
Molecule
Monomer
Polymer
Macromolecule
Organelle
Cell
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Tissue
Organ
Organ system
Organism
Population
Community
Ecosystem
Biosphere
1. Scientists have estimated that they have
identified over 2.5 million organisms on
earth. They still have over a million
organisms to go.
2. Scientific classification is grouping organisms
based on their similarities.
3. Some of these similarities include
the characteristics that classify them
as “Living”. These characteristics
include:
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Made of Cells
Reproduce
Highly Organized
Grow and develop
Energy
Respond to environment
Evolve
Genetic code made of DNA
4. Classification is the science of taxonomy. It
helps compare a new species to an already
known organism and decide what and how to
name it.
5. The science of taxonomy and classification is
very systematic. A taxon is a group of
organisms that shares similar characteristics.
There are 8 main groups of taxons or
classifications. The levels of taxons from
the most general to the most specific are:
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Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
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Dude!
King
Philip
Came
Over
For
Green
salad
6. As we move through the different taxons,
from kingdom to species, they become more
unique or more specific.
7. Carolus Linnaeus developed this
classification system used today as well as
the naming technique called binomial
nomenclature used by all scientist.
8. Binomial nomenclature gives the organism a two part
scientific name.
• For example, the common name dog has the scientific
name Canis familiaris,
• The common name red oak as the scientific name Acer
rubrum .
• The common name human has the scientific name
Homo sapiens.
• In binomial nomenclature, the Genus name is written
first with the first letter capitalized and the species
name is written second with the first letter lowercase.
• So dogs belong to the Genus Canis
• while the red oak tree belongs to the species rubrum
• and humans belong to the Genus homo and the
species sapiens
9. Latin words are used for the
scientific names.
10. There are 3 domains:
• Archea
• Bacteria
• Eukarya
• Old or ancient bacteria
• “bacteria”
• Plants and animals
11. There are 6 kingdoms. The kingdoms in the
order of what scientist believe to have inhabited
the earth first to the most recent is…
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Archeabacteria
Eubacteria
Protista
Fungi
Plantae
Animalia
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Attention
Everyone!
Pray
For
Peace
Always
Baboons
KINGDOM
CLASS
FAMILY
SPECIES
Great white shark &
bottlenose dolphin
DOMAIN
KINGDOM