Question

According to recapitulation theory
A. Every animal begin as an egg
B. Damaged body parts are formed new
C. offsprings are like parents
D. Ontogeny repeats phylogeny

Answer 1

Hint: This theory is also called as biogenetic law or it is called as embryological parallelism. It is the historical hypothesis of the development of the embryo of an animal from the starting stage of fertilization and the ending stage of gestation goes to the stages of the successive adult stages in the evolution of the animal ancestors.

Complete answer:
The recapitulation theory is also called biogenetic law, and it has a phrase called “Ontogeny recapitulates phylogeny”. It is the development of the animal from the first stage to the end stage. The embryo has evolved in different ways. Later it becomes simply known as the recapitulation theory. Ontogeny is nothing but a growth that is size change and development is nothing but structure change of an individual organism, phylogeny is the evolution of the history of the species. The species with advanced development passes through many stages represented by the adult organisms of more primitive species. On the other side, each successive stage in the development of the individual represents one of the other forms that are seen in evolutionary history.
The Embryonic stages can show us how the features of the ancestral organisms exist, the theory of recapitulation has been viewed within this field of developmental biology as also a historical side rather than a dogma. Another person Darwin proposed that embryos resembled each other; they share a common ancestor, which presumably did not necessarily recapitulate phylogeny. There is no reason to suppose an embryo at any stage resembled an adult of an ancestor.

Hence, the correct answer is option (D).

Note: The form of recapitulation theory is considered to be defunct. The modern biology has rejected the literal and the universal form of this theory, so it is possible to behavioural ontogeny, that means the development of young animals and the human children. The Analogies of recapitulation theory have been used in other fields.