Classification of Animals
Question
Which of the following is common to Pheretima and Ascaris?
Easy
Solution
Complete digestive system is common to both Ascaris (Aschelminthes) and Pheretima (Annelida).
Coelom - Pseudocoelom in Ascaris and true coelom in Pheretima
Sexual dimorphism is observed in Ascaris while Pheretima is a hermaphrodite.
Metamerism is a feature of Pheretima, while Ascaris is unsegmented.
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