The Canary Song-Control Neural Circuit Is Remarkable Because the

Multiple Choice

The canary song-control neural circuit is remarkable because the

A) left descending motor circuit plays a greater role than the right.
B) high vocal center is four times larger in males than in females.
C) male song-control brain structures grow each spring.
D) new neurons are added to the male song-control brain structures each spring.
E) all of the above