Answer:
Genes & DNA
Explanation:
Heritable traits are known to be passed from one generation to the next via DNA, a molecule that encodes genetic information.Organisms inherit genetic material from their parents in the form of homologous chromosomes, containing a unique combination of DNA sequences that code for genes.
The human foot has two arches, but the chimpanzee foot has only one.
Zaroff is trying to convince Rainsford at his "sport".