The Brains of Female Zebra Finches Lack the Hormonal Influences

Multiple Choice

The brains of female zebra finches lack the hormonal influences that occur in the brains of males. As a result, what changes are seen in the female brains?

A) Auditory processing centers are especially well-developed in females.
B) More neurons are produced in the higher vocal center.
C) There is increased transcription of genes whose products are involved in memory retention.
D) The number of neurons in the higher vocal center declines.
E) Octopamine levels increase, stimulating neural transmissions.