Classsifying Organisms (Evolution and Classification (Classification…
Evolution and Classification
Species with similar evolutionary histories are classified more closely together.
Scientists are now aware that certain organisms are similar because they share a common ancestor.
Darwin researched about the Galapagos Islands.
Darwin observed that Finches some finches were similar and some were different to south americas.
Darwin said that he thinks the species changed little by little.
taxonomic keys are usefull tools for determining the identity of organisms
Levels of Classification
The major Levels of Classification
Within Phyla are classes within orders are families and each family contains one or more genera.
The more classification levels that have two organisms share, the more charcteristcs they have in common.
The Naming System Linnaeus
Genus and Species
Is a group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce.
Its a classification grouping that contains similar closely related organisms.
Why Do Scientists Classify
Biologists group organisms based on similarities.
biologists use classification to organize living things into groups so that or the organisms are easier to study.