NEED SCIENCE HELP PLEASE
Mammals
Amphibians
Land Plants
Bacteria
Protists
Place the above organisms in order of when they first appeared on Earth. Describe two (2) of the methods used by scientists to arrive at this conclusion.
Mammals
Amphibians
Land Plants
Bacteria
Protists
Place the above organisms in order of when they first appeared on Earth. Describe two (2) of the methods used by scientists to arrive at this conclusion.