Fertilization usually occurs in the a. uterus. b. vagina. c. Fallopian tube. d. ovary.

Step 1: Define the Problem

Identify where fertilization typically occurs in the female reproductive system.

Step 2: Break Down the Problem

Examine each option to determine where fertilization is most likely to happen:

• Uterus
• Vagina
• Fallopian tube
• Ovary

Step 3: Apply Relevant Concepts

Understand the biological process of fertilization:

• Fertilization is the union of sperm and egg.
• It typically occurs in the female reproductive tract.

Step 4: Analysis, Verify and Summarize

• Uterus: The uterus is where the fertilized egg implants and grows, not where fertilization occurs.
• Vagina: The vagina is the entry point for sperm but not where fertilization occurs.
• Fallopian tube: This is where the sperm meets the egg after ovulation, making it the typical site of fertilization.
• Ovary: The ovary releases the egg but is not where fertilization occurs.

Final Answer

Fertilization usually occurs in the c. Fallopian tube.