Biology, asked by Anushka0408, 11 months ago

characteristics of phylum Porifera.

Answers

Answered by rishitashukla009
11
HEYA!
_________

Characteristics of phylum Porifera:-

1) These are multicellular organisms which are sessile in nature.

2) Most of them are marine while a few are fresh water forms.

3) Body is cylindrical, asymmetrical or has radial symmetry.
Answered by tahseen619
5
Poriferans are commonly called sponges.

These are multicellular organisms which are sessile/sedentary in nature.

Most of them are marine while a few are fresh water forms.

Body is cylindrical, asymmetrical or has radial symmetry.

Body wall contains numerous pores called ostia through which water enters in the body through a canal system into the central body cavity, called spongocoel .

Body also contains one or more openings called oscula (-um/singular) through which water passes out from the body.

Reproduction may be asexual or sexual.


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