External circular rings commonly found on the body of annelids are called ________.
A
annuli
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B
cristae
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C
little rings
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D
body rings
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Solution
The correct option is A annuli Segmentations or body divisions are observed in the organisms belonging to the phylum Annelida. Annuli are external circular rings commonly found on the body of annelids. This type of segmentations from the outside to the inside of the organism is called metamerism.