porifera

porifera   Dan porifera

Porifera have no internal organs, nervous tissue, circulatory system, or digestive systems, making them the most primitive of the multi-cellular

PORIFERA LTD The phylum Porifera is divided into four classes, three of which occur off the coast of the Pacific Northwest Of the three classes present locally, this

สัตว์สงวน They can inhabit all marine and freshwater areas, stretching from the poles to the equator Approximately 4 out of 5 Porifera species live in shallow marine Class Demospongiae is the largest in the phylum Porifera and encompasses nearly 8,000 accepted species in three subclasses: Keratosa,