Question

1. Discribe charecters of Platyhelminthes.​

Answer 1

Answer:-

Characteristics of Platyhelminthes

They are triploblastic, acoelomate, and bilaterally symmetrical. They may be free-living or parasites. The body has a soft covering with or without cilia. Their body is dorsoventrally flattened without any segments and appears like a leaf.

Answer 2

Explanation:

▪︎They are commonly known as flatworms.

▪︎They show bilateral symmetry.

▪︎They are triploblastic.

▪︎They show no blood circulation and respiratory system is absent.

▪︎They act as endoparasite and free living (Planaria).

▪︎Reproduction is both sexual aswell as asexual.

▪︎They show organ level of organisation.

▪︎They are hermaphrodite (sexes are not separate).

▪︎Ceptialization (Formation of head) started from this phylum.

▪︎They are acoelomates.

▪︎They posses hooks and suckers and alimentary canal is absent.

▪These organisms are unsegmented and dorsoventrally flattened.

▪︎Mode of Nutrition - Parasitic

▪︎They have great power of regeneration.

》Examples of Platyhelminthes :

▪︎Planaria, Liver Fluke, Blood fluke, Pork tapeworm,etc.