How does the Classification system distinguish between organisms?
- CRRLv 74 months ago
The classification system was developed by Linnaeus by grouping like morphologies together and unlike morphologies in different groups.
Originally it was based only on morphological similarities and differences but today is often supplemented by genetics and evolutionary theory.
- Anonymous4 months ago
Two criteria are used. One, genealogy (how long ago they last shared an ancestor) and two, morphological differences (how similar or dissimilar they are).
For example, all chordates are classified in the same phylum because they last shared an ancestor with organisms from other phyla, such as phylum Arthropoda, Mollusca and Annelida. That is genealogy.
Morphologically, genealogically close relatives are often separated into different taxa. For example, gorillas are different morphologically than chimpanzees, different enough that they are classified in different genera. Gorillas are classified in the genus Gorilla and chimps are classified in the genus Pan. Both are classified in the same family, the Pongidae because of their similarities to each other. Humans are classified in a different family, the Hominidae because we are different enough from apes to merit a different family, at least according to scientists who are sane. Some insane scientists insist on classifying organisms only by genealogy and they totally ignore similarities and differences. One of them even suggest that chimps, gorillas and humans should be classified in a single genus, not just the same family. These insane scientists are called cladists.
- JazSincLv 74 months ago
Differing observable characteristics.