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Classifying Organisms (p. 16-23) (Why Do Scientists Classify (Finding info…
Classifying Organisms (p. 16-23)
The Naming System of Linnaeus
Using Binomial Nomenclature
This is the way in which the creatures are named (latin) and its the same name across the world
This way organisms dont get mixed up
Genus and Species
The first classification is an organisms Genus which contains similar organisms
The second classification is Species, species contain organisms that can mate together and produce offspring that can also mate
Taxonomic Keys
These are tools that are used for identifying organisms. Ex: a field guide
We made a taxonomic key when we classified the chips
Levels of Classification
The Major Levels of Classification
The order of classification goes Domain; Kingdom; Phylum; Class; Order; Family; Genus; Species.
If two organisms share lots of classifications then that means they are similar
Evolution and Classification
Classification today
Some organisms that are similar may share evolutionary history's and ancestors
Scientists classify some organisms by their ancestors
Determining Evolutionary History
Organisms that are similar contain similar chemicals that make up their cells
Scientists use this to determine creatures ancestors
Darwin's theory
Darwin studied birds that flew from the mainland to the Gallopicous Islands. He figured out that they were different from the birds on the mainland because of evolution
The species change to adapt with there environment and sometimes one species can become two different ones
Why Do Scientists Classify
Finding info about organisms can be difficult when its unorganized
There are more than 1 Million kinds of organisms on earth
Classification is the way scientists organize by grouping organisms by similarity's
They use classification so that organisms are easier to study
The study of how living things are classified is called taxonomy