Question

answer the question Phylum Porifera ​

Answer 1

Phylum porifera has the following salient features: (1) All the sponges are Aquatic, Sedentary, Asymmetrical or Radially, First multicellular organisms and have cellular grade of organization. (2) They are diploblastic.

Answer 2

Phylum- Porifera

1. These animals are with simplest body plan and are called as

'Sponges'. they bear numerous

pores on their body .These pores

are called as 'Ostia' and 'Oscula'

2. These are aquatic animals

3. These animals have special type of cell - collar cells

4. These animals are always attached to substratum hence

do not show locomotion

5. These animals are reproduce

by budding

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