Phylum - Porifera

Canal system in Porifera is not concerned with

How many from the following phylum has external fertilisation with indirect development ? {Porifera, Ctenophora , Echinodermata, Hemichordata }

Which of the following phylum possess multicellular, organ grade level of organisation? 1. Platyhelminthes 2. Porifera 3. Nematode 4. Protozoa

Canal system of porifera is not connected with

Canal system in porifera is not concerned with

Identify a member of Porifera

Who described the animals nature of Porifera ?

The simplest type of canal system in porifera is

Write four salient features of Porifera.