Answer: The process of childbirth (delivery of baby).
- A Fertilization of the egg by sperm in the oviduct
- B The process of childbirth (delivery of baby)
- C Implantation of the blastocyst into the endometrium
- D First detectable heartbeat of the developing fetus
Correct answer: B. The process of childbirth (delivery of baby)
Explanation: Parturition is the process of childbirth - expulsion of the fetus and placenta from the uterus. It is triggered by a complex hormonal cascade involving oxytocin, prostaglandins, and cortisol from the fetus.
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.