Phylum sarcodina
Sarcodina is known as the largest phylum. It consists of 11,500 living species and 33,000 fossil species of Protozoans. It comprises the amebas and related organisms; which are all solitary cells that move and capture food by means of pseudopods, flowing temporary extensions of the cell, and control the population of organisms lower than them on the food chain as well as mineralization. Most Sarcodines are free living; others are parasitic. These organisms have streaming a cytoplasm and use temporary cytoplasmic extensions called pseudopodia in locomotion and feeding.