question_answer 48)

  Correct the wrong statements among the following. (a) In earthworm, a single male genital pore is present. (b) Setae help in locomotion of earthworm. (c) Muscular layer in the body wall of earthworm is made up of onlycircular muscles. (d) Typhlosole is the part of intestine of earthworm.

Answer:

                  Among the given statements (b) and (d) are correct statement, correct statement for (a)would be in earthworm there are a pair of male genital pore lying on the ventro-lateral side of the 18th segment. Male reproductive fluid containing sperms is discharged by these pores. However, a singlefemale genital pore is present in the), mid ventral line of 14th segment. Correct statement for(c) Muscular layer in earthworm is consist of an outer layer of circular muscles and the innerlayer of longitudinal muscles.