What is a function of the hormone testosterone?(1 point)
Responses
It triggers the flight or fight response when scared.
It triggers the flight or fight response when scared.
It releases other chemical messengers that signal increased cell growth.
It releases other chemical messengers that signal increased cell growth.
It stimulates the growth of breast tissue during puberty.
It stimulates the growth of breast tissue during puberty.
It causes the deepening of the voice during puberty.
It causes the deepening of the voice during puberty.
69How do fraternal twins differ from identical twins?(1 point)
Responses
Two eggs are fertilized versus one fertilized egg splitting.
Two eggs are fertilized versus one fertilized egg splitting.
One fertilized egg implanting versus two fertilized eggs implanting.
One fertilized egg implanting versus two fertilized eggs implanting.
Two unfertilized eggs splitting versus one fertilized egg splitting in half.
Two unfertilized eggs splitting versus one fertilized egg splitting in half.
One egg implanting without being fertilized versus two eggs implanting after fertilization.