Phylum Porifera : General Characteristics and Classification
Explore Phylum Porifera, the "Republic of Cells." Learn about sponge characteristics, choanocytes, and the three classes: Calcarea, Hexactinellida, and Demospongiae. Read more
Complex Science, Simplified.
Explore Phylum Porifera, the "Republic of Cells." Learn about sponge characteristics, choanocytes, and the three classes: Calcarea, Hexactinellida, and Demospongiae. Read more
A complete guide to Phylum Protozoa. Learn about the general characteristics, locomotory organs (cilia, flagella, pseudopodia), and the classification of the first animals. Read more