Why do hydras use its stinging cells?

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

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.

How do ratio scale and diagrammatic scale work