Biology In an annelids, the contraction of circular muscle results in___________? Options:A. Lengthening of the body.B. Shortening of the body.C. Widening of bodyD. Thinning of bodyView AnswerD. Thinning of body Continue Reading Previous: Reflex actions below the neck are under control of____________?Next: The opening and closing of stomata is directly controlled by the___________?
