Question
Biology Question on Kingdom Animalia
Metameric segmentation is the characteristic feature of phylum
A
Annelida
B
Echinodermata
C
Mollusca
D
Platyhelminthes.
Answer
Annelida
Explanation
Solution
Metameric segmentation or metamerism is the condition where an animal?s body (except at the head region) is divided into a number of compartments (segments or metameres) each containing the same organs. Metameric segmentation is most strongly marked in annelids in which the muscles, blood vessels and nerves etc. are repeated in each segment. Metamerism is absent in echinoderms, molluscs and platyhelminthes.