Arthropodia

Question 1 Write the characteristics of kingdom anthropodia?

Arthropodia
1)Bilaterally symmetrical,segmented,triploblastic.
2)Circulatory system is open means blood does not flow in well defined blood vessels.
3)Body cavity is haemocoel ie filled with blood.
4)They have joined legs.
5)The body segment is divided into 3 regions-Head,thorax,abdomen.
6)Alimentary canal is complete,mouth,spiders,scorpions,crab.

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