Question

In sea-walnuts and comb-jellies the fertilization is

• A. External
• B. Internal
• C. Both
• D. None

Answer 1

The correct option is A External

• The comb jelly or the sea walnut is a species of Ctenophora belonging to the class Tentaculata.
• These organisms have both male and female reproductive organs i.e, they are hermaphrodite and are free-spawning organisms
  
• In them, the eggs and sperm are released into the water column where fertilization takes place which is also known as external fertilization.
  
• So, the correct answer is 'External'.