1) How long does the menstrual cycle last for in humans? a) 28 days b) 14 days c) 40 years 2) What day does ovulation occur? a) 1 b) 28 c) 14 3) What range of days is the fertile period? a) 12-14 days b) 0-5 days c) 20-28 days 4) The menstrual cycle is also called a period. a) false b) true 5) What happens after 28 days if implantation does not occur? a) the lining is shed and lost along with the egg through the vagina b) the lining is reabsorbed into the body c) the egg is recycled back to the ovaries 6) How long does a period last in a human female? a) 1-2 months b) 5-7 days c) 1-2 days 7) When, during a cycle, does the period occur? a) 0-5 days b) 14-20 days c) 21-28 days 8) The lining of the uterus will be shed if the released egg is not... a) ejaculated b) ovulated c) fertilised 9) When periods stop completely a woman is said to be going through... a) puberty b) the menopause c) pregnancy

Menstrual cycle

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？