CK-12 Foundation
Ck 12: Episd: Linnaean Classification
[Free Registration/Login may be required to access all resource tools.] An introduction to the method of biological classification developed by Carl Linnaean.
CK-12 Foundation
Ck 12: Life Science: Domains of Life
[Free Registration/Login may be required to access all resource tools.] Humans are in the same domain as trees and algae. What could they possibly have in common? It is the location of their DNA inside their cells. Their cells all have a...