Science Common Sense

1443 - What influence does the concept of a common ancestor have on the biological classification system?

The concept of a common ancestor is the base of the biological classification system. It says that all living things share an ancestor and over time, they change and become different species.

This idea helps group living things in categories like: - Domain: the biggest group, like animals and plants. - Phylum or Division: smaller groups, like fish or flowers. - Class: groups like mammals or birds. - Order: groups like dogs or cats. - Family: small groups, like cat family or dog family. - Genus: groups that are very similar, like cats or lions. - Species: the smallest group, like domestic cats.

This system helps us understand how living things are connected and how they changed over millions of years.