Question

Dorsal pores of red worm don't occur within the region of
A. 1st eleven and last annulus
B. 14-16 annuli
C. 100-110 annusli
D. 26-40 segments

Answer 1

Hint: Dorsal is an opening in the mid-dorsal piece of virtually every section in numerous worms by which the body depression is set in correspondence with the outside and which is accepted to allow saturating of the body surface with coelomic liquid for grease and to encourage breath.

Complete answer:
- An Annulus is a ring-molded item, limited by the outline of two concentric circles of two unique radii. An Annulus is a lot of like the toss ring. One approach to consider it is a roundabout circle with a roundabout opening in it. The external and inward circles that characterize the ring are concentric, that shares a typical focus point.

-In night crawler, minute dorsal pores square measure on the market one in every bury segmental depression within the middle dorsal surface when the twelve section to the last two and portion. Coelomic liquid delivered out through these pores executes damaging organisms, as an example, microorganisms.

-Hence, option A' First eleven and last annulus 'is the correct answer.

Note: An individual with red worms may likewise encounter loose bowels. Loose bowels is the point at which an intestinal disease causes the runs with blood and bodily fluid in the stool. Red worms can likewise cause a rash or tingling around the rectum or vulva. Sometimes, you will pass a worm in your stool during a defecation.