Which among the following belong to same phyla?
A
Physalia, obelia, Pleurobrachia - Coelenterata
B
Bombyx, Palaemon, Limulus - Arthropoda
C
Cuttle fish, devil fish, Patella - Mollusca
D
Star fish, jelly fish, Sea urchin - Echinodermata
Correct option is B. Bombyx, Palaemon, Limulus - Arthropoda
- Arthropoda is the largest phylum of Animalia which includes insects. The body of arthropods is covered by a chitinous exoskeleton. The body consists of a head, thorax, and abdomen. They have jointed appendages (arthros-joint, poda-appendages).
- For example, Apis (Honey bee), Bombyx (Silkworm), Laccifer(Lac insect), Vectors – Anopheles, Culex and Aedes(Mosquitoes), Gregarious pest – Locusta (Locust), Living fossil – Limulus (King crab), Palaemon belongs to phylum Arthropoda.
- Hence Bombyx, Palaemon, Limulus belongs to same phyla Arthropoda.
- So, the correct answer is 'Bombyx, Palaemon, Limulus - Arthropoda'.