How Can I Prove Oscarella And Chalina As Two Poriferan Animals In Details?

[adildipro]

How can I prove Oscarella and Chalina as two Poriferan animals in details? please help me someone.

[Buenchico]

Simply establish that they conform to the classification. i.e. they must be multi-cellular, but lacking tissue organisation and organs, with asymmetric bodies that allow water to flow through and around them. They must also be fixed in one place (sessile).

[lankeela]

Well I'd give Best Answer to Chris!

[LadyCG]

Chris deserves a Knighthood for deciphering that!

[AuntPollyGrey]

Oscarella and Chalina are types of Sponges, thats the living animal not a Victoria Sponge.

Poriferan animals are a type of primitive invertebrate , having a cellular grade of construction without true tissue or organ formation but with the body permeated by canals and chambers through which a current of water flows and passes in its course through one or more cavities lined with choanocytes . Choanocytes create the active pumping of water through the sponge, while the collars of the choanocytes are the primary areas that nutrients are absorbed into the sponge.

As Chris says, you need to establish that Oscarella and Chalina conform to this classificationn by describing their functions and comparing them to the classifications of a Poriferan animal.