Question

In which animals, external fertilisation is most frequent?

• A. Terestrial
• B. Aquatic
• C. Both A and B
• D. None of the above

Answer 1

The correct option is B Aquatic

External fertilization mostly occurs in the aquatic environment. Amphibians and fishes release gametes in external environment where fertilization takes place. In this type of fertilization large quantity of male gamete is produced to compensate the damage of gametes and to ensure the fertilization.

So, the correct answer is option B.