Phylum Porifera (Sponges)
Phylum Porifera (Sponges) - Sponge The simplest multicellular animals. The cells are loosely held together and do not form tissues. Aquatic in habitat (mostly marine). Ostia (pores) are present all over the body, with a single large opening on top called osculum. Food ..
Phylum Porifera (Sponges) - Sponge The simplest multicellular animals. The cells are loosely held together and do not form tissues. Aquatic in habitat (mostly marine). Ostia (pores) are present all over the body, with a single large opening on top called osculum. Food ..Phylum Porifera (Sponges)
Features of Porifera..
Features of Porifera..Phylum Porifera (Sponges)
The simplest multicellular animals. The cells are loosely held together and do not form tissue..
Phylum Porifera
Phylum Porifera - Primitive multicellular animals with cellular grade of organisation. Free living aquatic, mostly marine, sedentary forms either solitary or colonial. Body with a large number of incurrent pores called ostia leading into a spongocoel through a system of canals, Spongocoel..
Summary
All multicellular animals are now placed in the kingdom of Metazoa. The multicellular animals show a very specific body organisation which ranges from cellular grade to organ system grade. Higher in the hierarchy of animal kingdom, one can recognise appearance of specific features like symm..
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