Question

explain the theory of Hugo de vries​

Answer 1

Answer

According to Devries the evolution is very fast like horse running

movement, but not slowly like snails movement as said by Darwin.

Devries also said that there are no middle forms between the ancestor

and new species.

Answer 2

The botanist Hugo de Vries (1848-1935) worked in the fields of heredity and its relation to the origin of species, developing a mutation theory. He also brought the earlier work of Gregor Mendel to the attention of the scientific world.