Why Was It Informative for Researchers to Study the Proximate

Multiple Choice

Why was it informative for researchers to study the proximate causation of Daphnia switching reproductive tactics in the laboratory?

A) Daphnia in the wild were genetically identical and the laboratory was the only place where Daphnia would reproduce sexually.
B) Daphnia could not obtain enough energy in the wild to reproduce sexually.
C) Daphnia were no longer available in the wild when the investigations occurred.
D) The density of Daphnia populations could be easily manipulated in the laboratory.