Notes/Study Guide - Classification
All living things are classified into groups based upon their ____________________.
Advances in __________________ have allowed us to further group organisms based upon similarities
or differences in their DNA.
All living things are grouped using the following classification system:
K___________, P__________, C___________, O_______________, F___________,
G__________, ____________. Kingdom is the largest and most inclusive category whereas
Species is the smallest.
So what constitutes a species? The biological species definition is anything that can
__________ and produce _____________ offspring.
Occasionally hybrids are produced, but this definition is not exactly clear. Sometimes these are
identified as __________________.
The father of modern classification was a man named ____________________. He changed his own
name to Carolus Linnaeus to make his name sound more like a scientific name. He created the system
of _______________ _______________________, which means 2-name naming system. We now refer
to it as a _________________________ and it is properly written as Genus species. The “Genus” is
always capitalized and “species” is always lower-cased. For example, the scientific name for humans is
Homo sapiens. (The Genus = Homo and the Species = sapiens). The scientific name is also typed in
_________ or ___________________ when handwritten.
Linnaeus also used Latin for his classification system because:
1. Latin was the language of ________________
2. By picking one language that was the ___________ for most European languages, it insured
that everyone could _________________.
3. Using one language eliminated the problem of different ____________ names for the same
organism.
There is actually a level of classification that is larger than kingdom and this is called a ______________.
There are 3 domains in nature. ____________, _____________, and ______________. The first 2
domains are strictly bacteria whereas the last domain (Eukarya) has everything else.
The 6 Kingdoms:
Archeabacteria
Eubacteria
Protista
Plantae
Animalia
For example, using this system of classification to classify humans:
Kingdom:
Phylum:
Class:
Order:
Family:
Genus:
Species:
Tools for identifying organisms:
DNA Technology
Dichotomous Key
Cladogram
Phylogenetic Tree
Fungi