Human Reproduction 3-2-15
How does the production of male gametes differ from that of female gametes
A female is born with all of her potential gametes, whereas a mature male produces them everyday.
Secondary sex characteristics are traits that are
caused by sex hormones but are not directly related to reproduction
Estrogen and progesterone are examples of
hormones
What happens if an egg cell is not fertilized after it is released
it breaks down and is passed out of the female's body.
Which statement does not correctly describe an adaptation of the human female reproductive system
it provides for external fertilization of an egg
The scrotum is located outside the body activity, enabling healthy sperm to form because
its temperature is lower than that of the body
If fertilization of the egg does not occur after ovulation, the
level of progesterone decreases.
Why does the lining of the uterus thicken during the first half of the menstrual cycle
to prepare to nurture an embryo
Why does menstruation occur?
to remove an unfertilized egg from the uterus
The reproductive system of the human male produces gametes and
transfers gametes to the female for internal fertilization
The development of a human female's egg cells occurs within her
ovaries
The testes are adapted to produce
sperm cells that may be involved in fertilization
Most of the semen consists of
sugar
ATP is important to sperm cells because it
supplies the energy they need to move
In the male, meiotic cell division( that is sperm cell formation) occurs within
testes
Regulation of sexual reproductive cycles of human males is related most directly to the presence of the hormone
testosterone
The shape of the sperm can best be described as
a head with a long tail
What function does the placenta serve
Materials are exchanged between fetal and maternal blood
