Design an experiment to answer the question, what is the effect of caffeine on the rate of mitosis in frog eggs? Label: hypothesis, null hypothesis, independent and dependent variables, control group. Specify material and time amounts and what you will measure.

The answers are the following:

- Hypothesis: caffeine affects the rate of mitosis in frog eggs

- Null hypothesis: caffeine has no effects on the rate of mitosis in frog eggs

- Independent variable: time

- Dependent variables: rate of mitosis in frog eggs, amount of caffeine used in each treatment, etc

- Control group: rate of mitosis in frog eggs no treated with caffeine