Question

How are coelenterata more advanced than Poriferains ?

Answer 1

hey
_______


porifera
_______
(pores) (holes)

• organisms with holes all over the body

• body differentiation into tissues is minimum
( no organs are found , different types of cell perform specific function)

• cellular level of organisation

• hard protective covering ourltside

• prefer marine habitats

• holes form canal system
( the holes form canal system helps in circulating food and water throughout the body)

• termed as sponges
( because of their body appearance as they have pores all over the body)


•coelentrata
___________
( hollow) (cut)

• better body differentiation than porifera

• body made up of two layers of cell

- 1st layer forms outerlining of the body
- 2n layer forms inner lining of the body

• tissue level of organisation

• prefer aquatic habitat

• may live in colonies or isolation

• mobile (moves by swimming)

eg - hydra , corals , jellyfish

hope helped
_____________