The monthly cycle of changes in the female reproductive system is called the ____________________ cycle.
a.
menstrual
c.
phase
b.
lunar
d.
fertilization
ANSWER IS A
The fertilized egg is also known as ____.
a.
egg
b.
ovary
c.
sperm
d.
zygote
ANSWER IS D
The hormone ____________________ controls the development of male characteristics.
a.
aldosterone
c.
estrogen
b.
oxytocin
d.
testosterone
D
