A fluid called ____ provides a nourishing environment for sperm.
The ____ is a tube that connects an ovary to the uterus.
What develops in the structure shown here?
What reproductive hormone does this structure help regulate?
What is a functional difference between follicle-stimulating hormone (FSH) and luteinizing hormone (LH)?
|A)||Only FSH travels to the testes from the anterior pituitary gland.|
|B)||LH stimulates sperm production; FSH stimulates testosterone production.|
|C)||Only LH is released from the anterior pituitary gland.|
|D)||FSH stimulates sperm production; LH stimulates testosterone production.|
The joining of sperm and egg is called ____.
An embryo that has entered the uterus as a solid ball of cells is called a (an) ____.
What could result from the dividing cell mass in a blastocyst?
|A)||a single gamete|
What is the function of amniotic fluid?
|A)||fertilizes the zygote|
|B)||produces the first meiotic division|
|C)||produces an ovum|
|D)||cushions and insulates embryo|
Which process, depicted here, completes fertilization?
|A)||fusion of the sperm and egg nuclei|
|B)||penetration of plasma membrane by sperm|
|C)||weakening of the plasma membrane by acrosome|
|D)||separation of the egg and sperm nuclei|
Which process is an essential feature of hormonal regulation during pregnancy?
|A)||restarting the menstrual cycle|
|B)||secretion of human chorionic gonadotropin (hCG)|
|C)||decrease of progesterone and estrogen levels|
|D)||degeneration of corpus luteum|
What process allows a sperm cell to penetrate the egg?
|A)||thousands of sperm enter egg|
|B)||diffusion by osmosis|
|C)||enzymes weaken the plasma membrane|
|D)||diffusion by active transport|
What are the three stages of birth called?
|A)||embryonic, fetal, expulsion|
|B)||umbical, labor, dilation|
|C)||dilation, umbilical, fetal|
|D)||dilation, expulsion, placental|
What stage of the birthing process does this show?
What has occurred when a pregnant woman's "water breaks?"
|A)||The torn amniotic sac has released amniotic fluid.|
|B)||Uterine contractions have caused expulsion.|
|C)||The placenta has been expelled from the body.|
|D)||Progesterone has been discharged from the body.|