Read the following statements:
(i) Sponges reproduce asexually by
Fragmentation and Sexually by the
formation of gametes.
(ii) Cnidarians exhibit tissue level of
organisation and are diploblastic.
(iii) Digestion in ctenophora is both Extracellular and Intracellular.
(iv) Hooks and suckers are present in freeliving form of platyhelminthes.
Which of the statements mentioned above are correct?