Question

What is cuticle in earthworm​

Answer 1

Answer:

The collagenous cuticle of annelids overlies the epidermis and, together with it, lines the gut, genital and excretory openings to various degrees, and also the chaetal follicles in polychaetes and oligochaetes. The cuticle is perforated by openings from the epidermal gland cells and by sense cells

Explanation:

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Answer 2

• The annelids' collagenous cuticle covers the epidermis and, with it, coats the gastrointestinal, genital, and excretory openings, as well as the chaetal follicles in polychaetes and oligochaetes, to varying degrees. The epidermal gland cells and sense cells both have holes in the cuticle.
• Cuticle depth and organisation are proportionate to body size in general, and may be linked to different locomotory behaviours and environmental pressures (Richards 1978).
• This is especially obvious in tubicolous polychaetes since their cuticles are rather thin.