Metamorphosis Metamorphosis - Başkalaşım - Metamorfoz

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Metamorphosis Metamorphosis - Başkalaşım - Metamorfoz

Metamorphosis - Metamorphosis - Metamorphosis Metamorphosis - Metamorphosis Online - About Metamorphosis - Biology




Metamorphosis, insects, frogs, such as leaving the eggs of some species undergoes structural changes during the next development have become similar to their ancestors.

Many animals survive through the development of protection during the unstable conditions become pupae. Complete return to normal, and adult development of the media becomes.

Metamorphism larval stage, consists of organs in larvaya. Groups of cells in the adult universe, waits for the larva stage of development. These events are controlled by hormones. Başkalaşımında insects, juvenile hormones and plays a role in ekdison. Ekdison hormone; both larvae and pupae and adult stages need to change the skin and ensures that the metamorphism occurred. 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: larval state of major changes occur during the period from puberty. A complete metamorphosis, butterfly, moths, flies, etc.. As is seen in insects. This species, the larva or caterpillar stages are in the wolf (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 than the if predominant larvae, 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 başkalaşır and consists of a dwarf.

Metamorphic frogs

Frogs metamorphosis, the thyroid gland is supplied 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 as it always that way and life will continue.

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 multi-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 in larvae of waste materials resulting from ammonia, which is less toxic and less mature than in the urea is dilutable with water. However, vascular layer of the pigments in the eyes that see the past in the water, on land that opinion will change.
 
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