discuss the evolutionary significance of bilateral symmetry

discuss the evolutionary significance of bilateral symmetry, cephalization, and triploblasty

Solution

BILATERAL SYMMETRY-The evolutionary significance of it is , bilateral symmetry is a feature of most of the vertebrae. bilateral symmetry contribute to the development of complex central nervous system such as spinal cord and vast network of nerves in the brain. it also help in sensory organ development. this characters make us superior from other species.

CEPHALIZATION- THE evolutionary significance of it is the development of brain which becomes more complex and co-ordinated. other advantage is, thevconcentration of sense organs at the front of the body and the close proximity of the mouth to sense organs.

TRIPLOBLASTY- the germ layers are evidence of slowly adapting layersof developmental control during embryogenesis. the different cell work togeather on one job within an organised higher order structure. tissue share a common cellular origin in embryogenesis.