ln mammals, fertilization takes place in the

Step 1: Analyze the question The question asks where fertilization (the fusion of sperm and egg) happens in mammals.

Step 2: Explain the concept After ovulation, the ovary releases a secondary oocyte (egg). It is caught by the funnel-like opening of the oviduct (also called the fallopian tube or uterine tube). Sperm deposited in the vagina swim through the cervix and uterus and up into the oviduct, where they meet the egg.

Step 3: Walk through the options

• A. Ovary: This is where eggs are produced and mature. Fertilization does not normally happen here.
• B. Oviduct: The egg and sperm meet in the upper part of the oviduct, so fertilization happens here.
• C. Uterus: This is where the fertilized egg (zygote, which has by then become an embryo) implants and develops during pregnancy. It is not the site of fertilization.
• D. Vagina: This is where sperm are deposited during mating. It is the birth canal, not the site of fertilization.
• E. Vulva: This is the external opening of the female reproductive system. No fertilization happens here.

Step 4: Sequence to remember Ovary (ovulation) → oviduct (fertilization) → zygote divides as it travels → uterus (implantation) → pregnancy.

Answer: B. Oviduct

Exam tip: Remember "Fertilization happens in the Fallopian tube". Both begin with F. Implantation and development happen in the uterus, so do not confuse the two.