Compound pistils are thought to have arisen as a result of crowding of simple pistils on the floral axis; for example, variation in the degree of fusion may be observed in members of the saxifrage family.
For example, variation in height of organisms could result from the contribution of several alleles at a locus where each allele contributes more height to the organism.
However, our spatial folksonomies provide new insights into how landscapes are described, through for example variation in space, time and through the prism of different activities.
Tephra thickness is also affected by factors unrelated to eruption dynamics, for example: variation in topography, re-mobilisation, bioturbation, compaction and soil formation.
For example, variation within the class of those with normal color vision (see subsection 2.4 below), or variation within the class of standard illuminants (different kinds of daylight, say), can by themselves account for a difference in color appearance.
For example, variation in the pectoral fin is described as follows [26]: "Pectoral fin size.
For example, variation in leg elevation angle would produce different geometric configurations of the body that might in turn have different aesthetic effects on the audience.
For example, variation in biting styles and dentition may allow some bats to exploit harder fruits inaccessible to sympatric species [59].
For example, variation in the spermatophoral gland in brachiopods (a phylum of invertebrates) is described with three states [81]: "Absent, Simple, Composite".
For example, variation in a skull bone, the epiotic, is described as [26]: 'Epiotic process, pointed (0) or bifurcated distally (1)'.
