The top row shows variation in a zooplankton, Daphnia: the morph on the right is produced in the presence of a predator cue. The second row shows an example of dimorphic variation in horn length ...

Module 7 (M7) proportion and variation is concerned with direct proportion between two variables. For inverse proportion, one quantity decreases as the other increases. For example, if speed is ...

Describe the process involved in a survey of discontinuous variation. Give examples in your answer. A survey involves measuring a characteristic in a number of people or organisms. If results from ...