Which of the following is not vestigial in human

The finch species of Galapagos islands are grouped according to their food sources. Which of the following is not a finch food ?

The branch of biology dealing with the process how to improve the human race by selective breeding is

Coacervates were experimentally produced by

Recapitulation theory $(Biogenetic law)$ explains "Ontogeny repeats Phylogeny''. It was given by