Compare and contrast in detail the changes that take place during metamorphosis between two taxa of...

Compare and contrast in detail the changes that take place during metamorphosis between two taxa of animals?

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Ans. Metamorphosis is a biological process by which an animal physically develops after bith or hatching ,involving a abrupt change in body structure through cell growth and differentiation, some insects ,fish ,amphibians ,mollusks, echinodem and tunicates shows metamorphosis ,by change in nutrition source or behaviour . It may be :

Complete metamorphosis ( holometaboly)

Incomplete metamorphosis ( hemimetaboly)

No metamorphosis ( ametaboly )

Change during metamorphosis between taxa of animals like ;

A) in cephalochordata , metamorphosis is idothyronine - induced and it could be an ancestral feature of all chordates .

B) in fishes ( osteicthyes ) or jawless fish( agnatha) metamorphosis typically under control by thyroid hormone .

C) Amphibians : frog , metamorphosis is regulated by thyroxin concentration in blood ,which stimulte metamorphosis ,and prolactin ,which stimulte metamorphosis and prolactin which counteracts it's effect .

gladiator answered 1 year ago

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