Give the difference between: phylum coelenterata and phylum platyhelminthes based on following points. a)symmetry b) Germ layer
Answers
Explanation:
Kingdom Animalia is divided into two main categories as vertebrates and invertebrates. Invertebrates are further divided into phyla out of which the two most primitive phyla are the Phylum Coelenterate and Phylum Platyhelminthes. Phylum Coelenterata, also referred to as Cnidaria, is the most primitive invertebrate type and are diploblastic animals possessing only the ectoderm and the endoderm. Phylum Platyhelminthes are mostly parasitic, and they are triploblastic animals where the ectoderm is specialized with a prominent epidermis. The key difference between Coelenterata and Platyhelminthes is based on the germ layers of the organism. Coelenterates are diploblastic invertebrates whereas Platyhelminthes are triploblastic invertebrates.