Question

Writethe6 characteristicsfeaturesof phyulm annilida

Answer 1

1) They are metamerically segmented.

2) They are coelomates.

3) They have closed circulatory system.

4) Excretion is by nephridia.

5) They have bilateral body symmetry.

6) They are triploblastic

Answer 2

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• In Latin annelus means rings and eidos means form.

• Body of animal is dorsoventrally flat means from top to bottom.

• True coelom is absent.

• Male or female sex organs are present in the same animals.

• They are mostly parasites.

• Locomotion occurs with the help of setae, parapodia and suck ers.

• Sexes may be unisexual but mostly are bisexual.

• They excrete from special organ called nephridia.

• Some are free living.

• Example = liver flukes, planaria, tapeworm.