Embryological support for evolution comes from

Biogenetic law proposed by Ernst Heckel is based upon the observation that certain features during embryonic stage common to all vertebrates that are absent in adult (ontogeny recapitulates phylogeny).Mammals from colder climates generally have shorter ears and limbs to minimise heat loss. This is called the Allen’s Rule.10 per cent law – only 10 per cent of the energy is transferred to each trophic level from the lower trophic level.According to August Weissman's theory of germ plasm, essential element of germ cells (eggs and sperm) is the hereditary material that is passed from generation to generation. Germ cells are those which are other than somatoplasm.