Question

19th century Darwin's theory of sexual differences between male and females was called

Answer 1

Sexual Selection

Step-by-step explanation:

Charles Darwin's theory of sexual differences between males and females, as proposed in the 19th century, was referred to as "Sexual Selection." Darwin introduced the concept of sexual selection in his book "The Descent of Man, and Selection in Relation to Sex" published in 1871. This theory explains how certain traits in males and females evolve due to competition for mates and mate choice. Hope this helps!