Classification of Organisms
I.
How do we know if something is alive?
a. It is made up of one or more units called cells.
i. Unicellular or multicellular
b. Grows and develops
i. Includes development, aging, death
ii. Differentiation- cell specialization
c. Obtains and uses energy
i. Anabolism- simple to complex (build-up)
ii. Catabolism- complex to simple (break-down)
d. Reproduces
i. Asexual- one indiv. divides
ii. Sexual- takes 2 indiv.
e. Responds to its environment
BEGINNING CHAPTER 15
II.
III.
IV.
Two word System for naming organisms
a. Taxonomy- science of naming things and assigning them to groups
b. Called Binomial Nomenclature
c. Developed by Carolus Linnaeus
d. Consists of two parts that must be underlined
i. Genus- category containing similar species
ii. Species- group of organisms that look alike and are capable of producing fertile offspring
in nature.
System to Classify Organisms
a. 7 taxa – 7 groups or categories
b. Kingdom c. Phylum d. Classe. OrderMore specific as you go down
f. Familyg. Genus h. Species6 kingdoms of living things
a. Archaebacteria
Prokaryotic
b. Eubacteria
Unicellular
c. Protista
d. Fungi
e. Plantae
f. Animalia
Eukaryotic
Multicellular
V.
Recognizing Species
a. Biological species-a group of actually or potentially interbreeding natural populations that are
reproductively isolated from other such groups
VI.
Taxonomy Reveals possible history
a. The study of the evolutionary history of animals is called phylogeny.
b. Cladistics - a system of taxonomy that infers relationships based on similarities.
c. Cladogram- a branching diagram used in cladistics showing evolutionary relationships
i. Ex.
Foster’s Bio.
Students in
Poudre
school
District
Lambkins
In Mr. Foster’s
Biology
Go to FCHS
Live within the boundaries
of Poudre School District
Student
Derived Traits