Classifying Organisms (Levels of Classification (The Major Levels of…
Levels of Classification
Uses many levels to clasify an organism
The more you share with others the more you have in common with them
The most general group you belong
The Major Levels of Classification
Animals are grouped based upon a shared characteristics
First placed into broad groups then made into smaller groups
A domain is the highest level of organization
The more classification levels two organisms share, the more characteristics they have in common
Evolution and Classification
Scientist now understand that certain organisms are similar because they share a common ancestor."
Species with similar evolutionary histories are classified more closely together,
Determining Evolution History
If the chemicals that make up a cell are similar that means that the species are more closely related to each other
Noticed that they were different from the Finches in South America
He thought that the Finches from South America flew over to the Islands and started changed little by little. After a while on the islands, they were no longer to mate with the Finches in South America. They were now a new species.
This proces is called evolution
Studied Galapagos Island's Finches
Why Do Scientists Classify?
Organisms are placed into groups
a lot easier to find info about what you are researching
Classification is the process of grouping things together based on similarities
The Naming System of Linnaeus
Genus and Species
- is a classification grouping that contains similar, closely related organisms
- Often describes a distinctive feature of an organism, such as where it lives or its appearance.
Using Binomial Nomenclature
Only first letter of the name is capitalized
contain Latin words
Everyone uses the same science name for organisms so its very easy to communicate
Taxonomic keys are useful tools for determining the identity of organisms"