The document discusses taxonomy and classification systems. It explains that binomial nomenclature is the scientific naming system developed by Carolus Linnaeus, using a two-part Latin name of genus and species. An example is provided of the full taxonomic classification of humans from the broadest kingdom to the specific species. Key terms like genus, species, and DNA are defined. A brief history of classification systems mentions Ernst Haeckel's original three kingdom system.

1. Taxonomy
D. Binomial nomenclature
1. System of scientific naming
2. Developed by Carolus Linnaeus
(Swedish botanist) in 1750s
3. Two part scientific name Genus and
species
4. Must be underlined or in italics
5. In Latin (dead language of scholars)

2. Taxonomy
E. Example :
Homo sapiens(wise man)
1. Scientific name for human beings
2. Homo = genus
(capitalized & underlined)
3. sapiens = species
(underlined, but NOT capitalized)

3. Taxonomy
J. An example:
Kingdom Animalia
Phylum Chordata
Class Mammalia
Order Primates
Family Hominidae
Genus Homo
Species sapiens

4. Taxonomy
F. Definition of species =
1. breed successfully  viable, fertile
offspring
2. unique features similar to others of same
species
3. have similar DNA to other species
members

5. Taxonomy
H. Kingdom is least specific, largest group
I. Species is most specific,
contains only one kind of organism

6. Classification Systems:
a short history
• in 1866, Ernst Haeckel
divided
animals, plants, and
microorganisms into 3
kingdoms
– Animalia
– Plantae
– Protista

7. K. Other Systems of Classification
2. Three Domain System