What is Metamorphosis? ~ Biology

What is Metamorphosis  insects and frogs

Metamorphosis, insects, frogs, some species, such as leaving the eggs of the next growth phase undergoes structural changes, it becomes similar to their ancestors.

 

   Many animals, in unstable conditions during development into pupae survive through the preserves.Complete return to normal development of the media and becomes mature.
   Larval stage of metamorphism, larvaya consists of the organs. Groups of cells in the adult universe, waits for the larva stage of development. These events are controlled by hormones. Metamorphosis insects, juvenile hormones and plays a role in ekdison. Ekdison hormone, both larvae and pupae and adult stages need to change the skin and allows the occurrence of Metamorphosis. If juvenile hormone, prolongs the period of larval insects.
   In animals, the conversion, the full and half-seen in two ways.
Half Transfiguration: This type of living creature metamorphosis, passing through the maturity of the youth observed very little change. These creatures, while the mature form, similar in young, but still very small, wingless, and gender is not developed. As an example, grasshoppers can be given.
Full Metamorphosis: state of larval period, major changes occur until adolescence. A complete metamorphosis, butterflies, moths, flies, etc.. As is seen in insects. This species, the larva or caterpillar is in the wolf periods (depends on the type). They are not like adult become. A number of feathers, leather, etc.. is a result of shifting operations into pupae. At the end of the next development events are transformed into mature individuals.

   

Ekdison hormone, juvenile hormone if the larvae than the dominant, the skin will continue to change. First, pupae, and then become mature. So ekdison hormone provides early metamorphosis.
   If the juvenile hormone-secreting gland is removed, the larvae mature individuals early Metamorphosis and consists of a dwarf.
 Metamorphic frogs   Frogs metamorphosis, the thyroid gland is provided by the hormone thyroxine. If the frog larvae, and small amounts of thyroid extract, thyroxin is given immediately, and the land is transformed through the dwarf consists of an adult individual. If, however, be issued by the thyroid gland in larvae, larvae of animal remains in continuous and life continues in this way.
   Many changes occur during metamorphosis frogs. Larvadaki; tail, pronefroz kidney, gills, mouth parts and the adults instead of losing the function of a cell glands mezonefroz kidney, lung, and consists of many cell skin glands. Herbivor larval period (grass fed), the live, in adult carnivores (meat-fed) diet, and again passes through the teeth of the jaw develops.
   Physiological changes observed during metamorphosis. Larvae in the water of oxygen that can hold period hemoglobins, connect the black life, the gaseous oxygen. However, amino acid metabolism as a result of larval period, rather than waste materials are ammonia, which is less toxic than in adults, and occurs with less water dilutable urea. However, vascular layer of the pigments in the eyes that see the past in the water, on land that opinion will change This Article was Viewed Read Times.