Phylum Porifera sponges . Characteristics Parts. archaeocytes amoebocytes Cells with pseudopods, located in the mesohyl. used in processing food, .The Phylum Porifera Characteristics of Porifera:- There are two main components of a sponge skeleton, a proteined spongin which forms a tough .
Larval sponges are small 50 microns to 5 millimetres in diametre. all known sponge larvae are ciliated though the cilia may be longer, shorter or absent from different parts of their surface. After release they swim or crawl for a period of time before settling down to begin life as a new miniature sponge...: Phylum Porifera: Definition, Characteristics Examples In this lesson, we will explore the phylum Porifera and look at the organisms that make up the group..Porifera: The Sponges. Intro to Bio .2 of Animals. STUDY. PLAY. Gas exchange in Poriferans. Choanocytes function in O2 uptake and CO2 release. Nutrition in Poriferans. captures particles on cell by cell level using choanocytes. Part of Aquiferous System; pores formed by cellsed porocytes, shaped like a cylinder .Included are the yellow sponge, Aplysina fistularis, the purple vase sponge, Nip.s digitalis, the red encrusting sponge, Spiratrella coccinea, and the gray rope sponge,yspongia sp. Sponges are similar to other animals in that they are multicellular , heterotrophic , lack cell walls and produce cells ..
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Sponge - Form and function: Sponges are unusual animals in that they lack definite organs to carry out their various functions. The most important structure is the system of c.s and chambers,ed a water-current system, through which water circulates to bring food and oxygen to the sponge. The water-current system also helps dis.