In Both Insects and Mammals

Multiple Choice

In both insects and mammals:

A) sexual dimorphism in the brain is often due to sex-specific differences in programmed cell death.
B) sexual dimorphism is regulated by reception of circulating sex hormones.
C) sex determination is cell-autonomous, based on karyotype.
D) sex-specific survival of a muscle promotes survival of its motor neuron(s) .
E) All of the above