AP Biology Math Skills

The routine for every calculation

1. Known values: write down the numbers you were given, with units.
2. Target: name the quantity the question asks for.
3. Relationship: choose an appropriate equation; some relationships must be derived from the information given.
4. Substitute the values with their units.
5. Answer: calculate, keep full precision until the end, then round as instructed.
6. Biological meaning: say what the number tells you about the organism or system.

Work each practice problem on paper first, then type your answers to check them. Fractions such as 3/16 are accepted. Your progress is saved only in this browser.