Difference between nereis and heteronereis.
Answers
Answer: AND Explanation:
"Nereis" is sexually immature stage of phylum Annelida.
"Heteronereis" is a dimorphic sexual form of Nereis.
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Answer:
Nereis is a genus of polychaete worms in the family Nereididae. It comprises many species, most of which are marine. Nereis possess setae and parapodia for locomotion. They may have two types of setae, which are found on the parapodia. Acicular setae provide support. Locomotor chaetae are for crawling, and are the bristles that are visible on the exterior of the Polychaeta.they are cylindrical in shape.they found in sandy area and they are adapted to burrow.
Heteroneresis is free-swimming dimorphic sexual individual of certain polychaete worms (family Nereidae) characterized by greatly enlarged eyes, enlarged and modified parapodia and other appendages, and more or less complete obliteration of the internal viscera by masses of developing germ cells
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