Question

Differentiate between radially symmetrical and bilaterally symmetrical organisms.

Answer 1

In radially symmetrical organisms, a cut through the axis of the body at any point gives two equal halves that are mirror images of each other. These organisms have a mouth (oral end) and the opposite aboral end, but no left arid right sides. On the other hand, in bilaterally symmetrical organisms, the body can be divided into two equal halves in only one plane, the left and right halves are two mirror images.