Question

Write the symmetry of the following
1.arthropods
2.Sponges
3.Coelenterates
4.Annelids
5.Ctenophores
6.Echinoderms

Answer 1

arthropods--bilateral symmetry
Sponges- Asymmetrical
Annelids- Bilateral
Coelenterarta- Radial
Ctenophores- biradial
echiboderm bilateral

Answer 2

$<b>Sponges</b>$
Most of the sponges are asymmetrical. Some are radially symmetrical.

$<b>Coelenterata</b>$
They show radial symmetry.

$<b>Ctenophores</b>$
Symmetry is biradial ( radial + bilateral ).

$<b>Platyhelminthes</b>$
They show bilateral symmetry.

$<b>Annelida</b>$
They show bilateral symmetry.

$<b>Arthropoda</b>$
They show bilateral symmetry.

$<b>Mollusca</b>$
They show bilateral symmetry.

$<b>Echinodermata</b>$
They show bilateral symmetry but pentamerous radial in adults i.e. body parts are arranged in fives or multiples of five.