Metameric segmentation (true serial body segmentation with repetition of organs) characterises phylum:
APlatyhelminthes
BMollusca
CAnnelida (e.g. earthworm; the name 'annulus' = little ring)
DAschelminthes
Answer & Solution
Correct answer: C. Annelida (e.g. earthworm; the name 'annulus' = little ring)
Annelida (Latin annulus = ring) shows metamerism — body internally and externally divided into segments with repeated organs (nephridia, ganglia, gonads etc). Earthworm Pheretima is the classic example; Nereis and Hirudinaria (leech) are other annelids.
Related questions
The segmentation seen in the earthworm is called:A body divided into segments with repeated organs shows:Animals with no body cavity at all are called:A cavity not lined by mesoderm is called a:Animals possessing a true coelom are called:A body cavity lined by mesoderm is called the:The mesoderm lies in the embryo between the endoderm and the:Animals whose embryo also has mesoderm are called: