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Question
A prominent dark band of glandular tissue called clitellum is present in the ________ segments of the earthworm.
A prominent dark band of glandular tissue called clitellum is present in the ________ segments of the earthworm.
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Solution
The correct option is C 14-16th
Earthworm exhibits metameric (animal is segmented externally and internally and repetition of some organs in all segments) segmentation. There are about 100-150 segments in an earthworm. Clitellum is a thick glandular tissue present between the 14th to 16th segments of the earthworm. The secretion of clitellum is highly active during the breeding season. It secretes a slimy substance that forms a girdle around the clitellum. This slimy substance later hardens to form the capsule called cocoon.
Earthworm exhibits metameric (animal is segmented externally and internally and repetition of some organs in all segments) segmentation. There are about 100-150 segments in an earthworm. Clitellum is a thick glandular tissue present between the 14th to 16th segments of the earthworm. The secretion of clitellum is highly active during the breeding season. It secretes a slimy substance that forms a girdle around the clitellum. This slimy substance later hardens to form the capsule called cocoon.
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