Proboscis of most Nemertea are covered in sheath named as:

rhynchocoel
pilidium
homocoel
cyst
rhynchocoel  

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What is true about Nemerteans?
A. they are monoceious
B. they are dioceous
C. they are parthenogenetic
D. they are larva
Larva of phylum Nemertea is known as:
A. pilidium larva
B. operculum
C. tadpole
D. Muller’s larva
Member of phylum Nemertea have a long proboscis and are commonly called as:
A. Nemertea
B. flat worm
C. fluke worm
D. proboscis

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