Porifera - Alfred Denny Museum

Unit 5-1: Phylum Porifera – The Biology Classroom porifera

Sponges make up the simplest animal group on the planet: phylum Porifera Having no digestive

porifera Porifera have no internal organs, nervous tissue, circulatory system, or digestive systems, making them the most primitive of the multi-cellular The simplest of all the invertebrates are the Parazoans, which include only the phylum Porifera Phylum Porifera (“pori” = pores, “fera” = Class Demospongiae is the largest in the phylum Porifera and encompasses nearly 8,000 accepted species in three subclasses: Keratosa,

เว็บบาคาร่า 888 Characteristic Features of Phylum Porifera · They are generally marine aquatic organisms, with a few freshwater species · Their bodies are asymmetrical · Body