THE DOMAINS OF LIFE

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THE DOMAINS OF LIFE
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Compare/Contrast the old system of organizing
animals into kingdoms and the new system that
uses domains
Kingdoms
Domains
The prokaryotes from the old Monera kingdom
are now split between the Bacteria Archaea
domains
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Prokaryote vs. Eukaryote
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Organisms can be unicellular or multicellular
amoeba
bacteria
dinoflagellate
paramecium
rod
spirogyra
euglena
yeast
spiral
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Cell Organization
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Cell Specialization
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Cells within multicellular organisms
organ
xylem
leaf
Reproductive cells
Cellular specialization
Mushroom
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Cells within multicellular organisms
Specialized cells form specialized tissues
Hydra
No organs
Cross section of small intestine
Small intestine
Cells-tissues-organism
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• Look carefully at the diagram above. Which pair
  of organisms below that has more in common
• A Bactrian Camel and Llama B Bactrian
  camel and Dromedary C Bactrian camel and sea
  star

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Scientific Name(Binomial Nomenclature 2 word
naming system)
Genus name species name Ex) Tyto
alba Quercus alba Quercus rubra
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Ancestor of all animals--gt
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Body Systems must work together
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Organ Systems of Animals
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Sexual vs. Asexual

• Sexual high genetic diversity usually two
  parents sperm and egg
• Asexual low genetic diversity one parent no
  sperm and egg
• Hermaphrodites produce both sperm and egg