Morphology (biology)

In biology, morphology is a branch of bioscience dealing with the study of the form and structure of organisms and their specific structural features.

This includes aspects of the outward appearance (shape, structure, colour, pattern) as well as the form and structure of the internal parts like bones and organs. This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of gross structure of an organism or Taxon and its component parts.

Branches of morphology

• Comparative Morphology is analysis of the patterns of the locus of structures within the body plan of an organism, and forms the basis of taxonomical catorization.

• Functional Morphology is the study of the relationship between the structure and function of morphological features.

• Experimental Morphology is study of the effects of external factors upon the morphology of organisms under experimental conditions, such as the effect of genetic mutation.

The field of morphology is divided into two distinct branches.

• "Anatomy" is the study of the form and structure of internal features of an organism.

• "Eidonomy" is the study of the form and structure of the external features of an organism.

Morphology and classification

Most taxa differ morphologically from other taxa. Typically, closely related taxa differ much less than more distantly related ones, but there are exceptions to this. Cryptic speciesare species which look very similar, or perhaps even outwardly identical, but are reproductively isolated. Conversely, sometimes unrelated taxa acquire a similar appearance as a result of convergent evolution or even mimicry. A further problem with relying on morphological data is that what may appear, morphologically speaking, to be two distinct species, may in fact be shown by DNA analysis to be a single species. The significance of these differences can be examined through the use of allometric engineering in which one or both species are manipulated to phenocopy the other species.

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