What is retrogressive metamorphosis? Of urochordates
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Answered by
15
Hey there!!!
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¤ Retrogressive metamorphosis :
Loss of advanced characters present in Larval stage during development...
The adult is devoid of advanced characters present in larva ..
¤ In Urochordates :
•☞ The larva has notochord and most of its nerve chord in its tail...
•☞ So during metamorphosis... When the tail is lost... Notochord and most of the part of nerve chord also gets lost...
•☞ So adult is sedentary... And do not contains notochord .
•☞ The adult is hence devoid of the advanced characters which were earlier present in their larva ( tadpole)
•☞ Such type of metamorphosis is called "Retrogressive Metamorphosis ".
___________________________________________
# hope the answer helps!!
___________________________________________
¤ Retrogressive metamorphosis :
Loss of advanced characters present in Larval stage during development...
The adult is devoid of advanced characters present in larva ..
¤ In Urochordates :
•☞ The larva has notochord and most of its nerve chord in its tail...
•☞ So during metamorphosis... When the tail is lost... Notochord and most of the part of nerve chord also gets lost...
•☞ So adult is sedentary... And do not contains notochord .
•☞ The adult is hence devoid of the advanced characters which were earlier present in their larva ( tadpole)
•☞ Such type of metamorphosis is called "Retrogressive Metamorphosis ".
___________________________________________
# hope the answer helps!!
Anonymous:
Excellent answer ! Ishita !
Answered by
3
Heyaa folk,
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♣ RETROGRESSIVE METAMORPHOSIS ♣
➞ It is the change from the juvenile to adult stage.
➞ It includes larval stage.
➞ It is different from the adult stage.
➞ It is characteristic of ascidians.
➞ Mainly, It is lost of advanced changes which occurs in larval stage.
__________________________________________________________________
Hope it helps u :)
__________________________________________________________________
♣ RETROGRESSIVE METAMORPHOSIS ♣
➞ It is the change from the juvenile to adult stage.
➞ It includes larval stage.
➞ It is different from the adult stage.
➞ It is characteristic of ascidians.
➞ Mainly, It is lost of advanced changes which occurs in larval stage.
__________________________________________________________________
Hope it helps u :)
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