Question

name the largest group of animals . write the salient features of this group . give two examples .

Answer 1

arthropoda is the largest group of animals.
1.they are bilaterally symmetrical.
2.they are segmented.
3.they have open circulatory system.
they have jointed legs.
eg:prawns, butterfly,crabs.

Answer 2

The arthropod state is the largest phylum of Animalia.

Examples: Cockroach, scorpion

1) Triploblastic, Bi-symmetric and Metamermically Segment animals

2) Body segment is divided into 2 areas - Cephalothorax and stomach

3) Exoskeleton of protein, lipid, chitin, and frequent calcium carbonate vents, secreted by implant epidermis and shade at intervals.

4) They have complex muscle system. They lack cilia

5) Each body section is usually added to the lateral and juicy legs or appendices.

6) The circulatory system is open with the dorsal heart.

7) Body cavity is Hemocol

8) True Nephridia is absent