Question

characteris of the following are :
Mollusca
Echinodermata

Please answer atleast 5 points each If you answer atleast 5 points each then l will mark u as a brainliest ​

Answer 1

Answer:

Molluscans are very diverse animals and form an important part of the ecosystem in the world. Some animals that you are familiar with like snails, octopuses, squids, oysters, clams etc. all belong to Phylum Mollusca. Did you know that Molluscs with shells can produce pearls? Some of these are also eaten by humans in different regions of the world. Let us educate ourselves about this phylum of the Animal Kingdom.

Answer 2

Explanation:

They are bilaterally symmetrical.

They are triploblastic, which three layers.

They show organ system grade of organisation.

The body is soft and unsegmented.

Body is divisible into three regions – head, a visceral mass, and ventral foot.

Body is covered by a mantle and shell.

for mollusca