phylum

phylum   Dan phylum

A phylum can be defined either by a group of organisms with a certain degree of morphological or developmental similarity or as a group of

In Summary: Phylum Annelida Phylum Annelida includes vermiform, segmented animals Segmentation is seen in internal anatomy as well, which is called metamerism These pores have given the sponges their phylum name Porifera—pore-bearers In some sponges, ostia are formed by porocytes, single tube-shaped

หวย เซียน PHYLUM AND CLASS PORIFERA · 1 Example of the Class The meaning of PHYLUM is a direct line of descent within a group How to use phylum in a sentence