Thw phyllum in which bilateral symmetry appeared very 1st time??
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The answer your question is Platyhelminthes
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I hope its helpfull for you.
IF IT HELPFULL FOR YOU THAN MARK AS A BRAINLIST.
THANK YOU.
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The phylum in which bilateral symmetry appeared very 1st time is Platyhelminthes.
Platyhelminthes :
The body is bilateral symmetrical.
The body is flattened and Ribbon shaped.
It is a leaf like in appearance.
Body cavity is absent.
Digestive system is absent.
Circulatory and respiratory systems are absent.
Platyhelminthes :
The body is bilateral symmetrical.
The body is flattened and Ribbon shaped.
It is a leaf like in appearance.
Body cavity is absent.
Digestive system is absent.
Circulatory and respiratory systems are absent.
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