Direct development vs indirect development
in case of direct development the young ones resemble the adult in most of features except that they may be smaller in size, may have different color and are sexually immature.
On the other hand , in indirect development the young one do not resemble the adults in most of the features.
in case of direct development there is no larval stage whereas in case of indirect development there may be one or more larval stages.
in case of direct development the young ones have same ecological niche as that of parents whereas in case of indirect development young ones that is larvae have ecological nitch different from that of parents .
in direct development reorganization of internal and external structures occur during transformation of young one to adults whereas in case of indirect development reorganization off internal and external structures occur during transformation of larvae to adults.
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