Question

Internal fertilization occurs in higher animals due to

• A. Copulatory organs
• B. Ensure fertilization
• C. Protection of semen
• D. Terrestrial residence

Answer 1

Answer: (A)

Copulatory organs

Fertilization which takes place inside the female body is called internal fertilization. Higher organisms have evolved compulsory organs like penis in males and vagina in females for internal fertilisation. Copulatory organs ensures that fertlisation takes place inside the body of female. It also increases chances of fertilisation.

So, the correct option is 'Copulatory organs'.