Mammals
amphibians
land plants
bacteria
protists
question:
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.

Error analysis: what might be the reason that some of your percentages didn't exactly match your predicted results? gametes aren't responsible for inheritance. mice don't have large litters, so the sample size was not large enough. the wrong type of mice were used.