Write bried notes on Dipoloblastic can Triploblastic with example.

Explanation

During embroyonic development, the tissues and organs of animals originate from two or three embryonic germ laters. On the basis of the origin and devolopment, animals are classified into two categories: Diploblastic and Triploblastic.
Animal in which the cells are are arranged in two embryonic layers, the external eltoderm, and internal endoderm and called diploblastic animals. In these animals the ectoderm gives rise to the epidermis (the outer layer of the doby wall) and endoderm gives rise to gastodermis (tissue lining the gut cavity). An undifferentiated layer present between the entoderm and endoderm is the mesoglea. (Corals. Jellyfish. Sea anemone)
Ani9mals in which the developing embryo has three germinal layers are called triploblastic animals and consists of outer ectoderm (skin, hair, ncuron, nail, teeth, etc), inner cndoderm (gut, lung, liver) and middle mesoderm (muscle, bone, heart). Most of the triploblastic animals show organ system level of organisation (Flat worms to Chordates).