In biology, a race is a population, a group within a species.

In some cases there is even significant variation within species.

No one tree, even within a single species, has such extraordinary variety.

Even within a species, different parts of the life cycle illustrate the association.

There is marked variation within species in the development of this process.

Time of development to reproductive period is highly variable within and among species.

Within a species, these are typically seen in the competition for mates.

Cell numbers in the organs are often constant within a species.

In these works Linnaeus used a third name as a variety within a species.

Helpful (and therefore sometimes manage to continue within a species) 2.