14 Main Adaptive Features of Columba Livia
The main adaptive features of this pigeon( Columba Livia) are associated with flight, with cleidoic development, and with homoiothermy. Adaptation for flight is manifested in…
Biology
Morphological Description of Lacerta Agilis (Lizard)
Lacerta agilis (Lizard) is mainly confined to southern England, where it is common in the counties of Dorset, Hampshire, Surely and Kent. It reaches a…
Nervous System and Coordination in Frogs
The general pattern of the nervous system and coordination in Rana temporaria is the same as that of the dogfish in all essential respects, the…
Nutrition and Metabolism in the Frog, Rana Temporaria
In the study of frog Metabolism and nutrition in rana temporaria, we can conveniently describe this clearly by looking at the alimentary canal which consists…
Morphological Description of the Frog – Rana Temporaria
The frog, Rana temporaria is usually selected for study because of its relative abundance and convenient size. Also it illustrates in some measure the changes…
8 Primitive Features of Amphioxus You Never Knew
The primitive features of Amphioxus can be summarized with this 8 concise descriptions: 1.The ciliary mode of feeding is undoubtedly primitive and has been lost…
Habitat, Habit and External Features of Amphioxus
Amphioxus has long been of considerable interest to zoologists and there has been a great deal of investigation into its structure and development. While there…
Morphological Affinities of the Chordates and Echinoderms
The origin and affinities of chordates and echinoderms have long been a subject of interesting speculation. Relationships between creatures are postulated mainly on grounds of…
Morphological and Physiological Description of Urochordata
Urochordata is subdivided into three orders, the Larvacea, the Ascidiacea and the Thailiacea. Members of the Larvacea are free-swimming and they retain the larval features…
Concise Description of Hemichordate Animals
This class is subdivided into two orders, the Enteropneusta and the Pterobranchia. The order Enteropneusta contains the acorn-worms balanoglossus and Dolichoglossus,which are free-living. They burrow…