2. A biologist made a hypothesis that the pituitary and the ovary both influence the uterine
cycle in females. Which of the following observations would best support this hypothesis?
A. The removal of the pituitary is followed by death.
B. The removal of the ovary can greatly affect the menstrual cycle.
C. The removal of the ovary is followed by a non-functioning pituitary.
D. The uterine development takes place only when both pituitary and ovary are present
3. A woman's unsafe period is the day near or during
A. fertilization B. menstruation C. ovulation
D. sexual intercourse
4. In a typical 28-day menstrual cycle, on which day following the beginning of the menstrual
period is the level of the luteinizing hormone most likely to be the highest?
A. day 7
B. day 14
C. day 21
D. day 28
5. What happens during ovulation?
A. A sperm can fertilize an egg.
C. An ovum is released from the ovary.
B. A zygote becomes an embryo. D. A follicle releases the hormone FSH.
6. Which of the following is responsible for a series of hormonal changes?
A. thyroid gland B. pituitary gland C. parathyroid gland D. thyme gland
7. When does ovulation usually occur?
3​