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[BIO211] The main collecting vessel in an earthworm is the ______________ blood vessel
Dorsal

[BIO211] The Chaeta in an earthworm is composed of __________
Polysaccharide chitin

[BIO211] The respiartory pigment contains in the blood composition of lumbricus is ____________
Heamoglobin

[BIO211] The circulatory system in an earthworm is a ____________ system
Closed

[BIO211] The body of an eartworm is made up of about ____________ segmants
150

[BIO211] The crop in earthworm is  thin-walled and is used in earthwarm as a storage __________
organ

[BIO211] The class Oligochaeta are found in all except ___________
Marine

[BIO211] The class polychaeta consist of the following except _____________
earthworm

[BIO211] The pharynx in lumbricus terrestralis is a thin wall tube extending to segment ___________
13

[BIO211] Clitellum is preserved in _____________
Lumbricus