Answer to Question #223970 in Zoology for Debbie

Question

Study the anatomical aspects of Metridium specimens and make short notes.

Answer 1

Metridium has a short, cylindrical body about 8 cm in length. The body is radially symmetrical and divisible into three distinct regions, viz., oral disc, column and pedal or basal disc. The base of Metridium senile is considerably wider than the column and is attached to rock or another substrate. The column is long, smooth and cylindrical, of a fleshy consistency with a slimy surface lubricated with mucus. There are no warts or suckers and the column is topped by a parapet and deep groove