Question

8. Fill in the blanks:

(a) -------------- (in male) and ------------- (in female) are primary sex organs.

• A. Testes
• B. Ovary

Answer 1

1. The primary sex organs are those organs involved in the production of reproductive cells or the gametes.
2. The male reproductive cell or the sperm is produced in the testes and female reproductive cell or the ovum is produced in the ovary.
3. As the main function of these organs is to aid sexual reproduction in organisms, they are classified as primary sex organs.
4. They are also involved in the production of sex hormones estrogen and progesterone in case of females and testosterone in case of males.

Final answer: Hence the primary sex organ in male is testes and in female is ovary.