Question

Ernst Haeckel: What did he do?

a) Discovered antibiotics
b) Studied fermentation
c) Formulated the germ theory of disease
d) Developed the concept of recapitulation

Answer 1

Ernst Haeckel is known for developing the concept of recapitulation in evolutionary biology. The correct option is D.

Step-by-step explanation:

Ernst Haeckel was a prominent 19th-century biologist and philosopher who is best known for developing the concept of recapitulation, also known as the biogenetic law.

This theory proposed that the development of an organism (its ontogeny) expresses all the intermediate forms of its ancestors throughout evolution (its phylogeny). While this idea has since been refuted in its original form, Haeckel's work was significant in the history of evolutionary biology.