Write the characteristic feautures of Phylum - Arthopoda .

1.	Write the characteristic feautures of Phylum - Arthopoda .
Answer» 1. They are having jointed apendages .2. They are bilaterally symmetrical .3. Body is covered by chitineous cuticle .4. The respiratory organs are trachea (cockroaches) , booklung (spider) , bookgill (prawn) .5. They are having open circulatory system .6. Sense organs may be simple eye or omatidia . 7. Example - Silkworm ( Bombyx mori ).

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