Question

What is the features of the bilaterally symmetrical organism and give examples

Answer 1

bilateral symmetry. Symmetricalarrangement of an organism or part of an organism along a central axis, so that the organismor part can be divided into twoequal halves. Bilateral symmetry is a characteristic of animals that are capable of moving freely through their environments.

Answer 2

Bilateral symmetry refers to organisms with body shapes that are mirror images along a midline called the sagittal plane. The internal organs, however, are not necessarily distributed symmetrically. The vast majority of animals display bilateral symmetry; also known as plane symmetry, this is a trait that applies to 99% of all animals, in the majority of phyla: Chordata, Annelida, Arthropoda, Platyzoa, Nematoda, and most Mollusca.

On the other hand, the Cnidaria display radial symmetry and the Porifera exhibit no symmetry.

The Echinodermata are unique, in that they display bilateral symmetry in their larval stage, and a special form of fivefold radial symmetry, pentamerism in their adult life stage.