Question

difference between scales ,plates and scutes

Answer 1

A scute or scutum (Latin scutum, plural: scuta "shield") is a bony external plate or scale overlaid with horn, as on the shell of a turtle, the skin of crocodilians, and the feet of birds. The term is also used to describe the anterior portion of the menotum in insects.

Scales are generally classified as part of an organism's integumentary system. There are various types of scales according to shape and to class of animal.

A plate in animal anatomy may refer to several things:

Contents  [hide] 1Flat bones (examples: bony plates, dermal plates) of vertebrates2Other flat structures3Other meanings in human anatomy4Related structures5See also

Flat bones (examples: bony plates, dermal plates) of vertebrates[edit]an appendage of the Stegosauria group of dinosaurs articulated armoured plates covering the head of thorax of Placoderm (literally "plate-skinned"), an extinct class of prehistoric fish (including skull, thoraxic and tooth plates)bony shields of the Ostra coderm (armored jawless fishes) such as the dermal head armour of members of the class Pteraspidomorph that include dorsal, ventral, rostral and pineal plates