Until about 200 million years ago, earth's continents were joined as a single land mass called

a. asia minor.
b. pangaea.
c. glossopteris.
d. cynognathus.

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.