Answer: Exchange of nutrients, oxygen, and waste between mother and fetus.
- A Produces sperm cells used during the process of fertilization itself
- B Exchange of nutrients, oxygen, and waste between mother and fetus
- C Stores all of a female's immature eggs until ovulation eventually occurs each month
- D Produces milk after childbirth from cells within the mammary alveoli
Correct answer: B. Exchange of nutrients, oxygen, and waste between mother and fetus
Explanation: The placenta is the organ that connects mother and fetus. It exchanges nutrients, O2, and waste between maternal and fetal blood. It also produces hormones (hCG, progesterone, estrogen) to maintain pregnancy.
The human male reproductive system: sperm formed in the testis mature in the epididymis and travel via the vas deferens, mixing with secretions of the seminal vesicle, prostate and bulbourethral glands. Image: Wumingbai, CC BY-SA 4.0, via Wikimedia Commons.
Concept context
Male and female reproductive systems, gametogenesis, fertilization, implantation, pregnancy, and reproductive health.