give the characteristics of the following:

i) Body triploblastic, bilaterally symmetrical with true coelom.

ii) True organs present in the body. Extensive organ differentiation.

iii) Body metamerically segmented.

iv)Found in marine water, fresh water as well as land.

v) Excretion by paired segmental nephridia.

vi) Alimentary canal complete.

vii) Reproduction occurs sexually.