The size and shape of the crop is quite variable among the birds.

Duration of G is highly variable, even among different cells of the same species.

The blade tapers to a long point, the length of the taper being variable among specimens.

Furthermore, the rod-to-cone cell ratio can be variable even among diurnal species.

The size of the braincase is variable among mammals.

Silicate structures are the most variable among all of the structures discussed.

Both the rate of change and the degree of visual loss are variable among those affected, even within the same family.

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

The symptoms of this condition are extremely variable, even among members of the same family.

However, the pharmacokinetics and pharmacodynamics of nanomedicine is highly variable among different patients.