Nearly half of all the studies documented at least one ecological response that was more strongly affected by variation within species than by its presence. In a surprising result, within-species ...

The variation within a single species has produced differences ... They say that members of one species couldn't become so different from other individuals through natural variation that they ...

Learners will understand that variations can occur within a species. Learners will understand that changes ... What happens to the moth population when there is more of one type of bark? If the bark ...