Question

Aquatic animals, in which fertilisation occurs in water, are said to be

• A. Viviparous without fertilisation
• B. Oviparous with external fertilisation
• C. Viviparous with internal fertilisation
• D. Oviparous with internal fertilisation

Answer 1

Answer: (B)

Oviparous with external fertilisation

In aquatic animals, fertilization takes place in water. They release their gamete (sperm and egg ) in water which fuses to form a zygote. As fertilization takes place outside the body so it is known as external fertilization and such animals are known as oviparous as the embryo development takes place in the egg. Thus, the correct answer is option B.