Mosquito have internal fertilisation or external fertilisation?

Answer 1

Mosquitoes have **internal fertilisation**.

The male mosquito transfers sperm to the female during mating, and the eggs are fertilised **inside the female’s body**. After that, the female lays the fertilised eggs in water, where they hatch and grow.

So yeah, fertilisation happens inside—but the development (eggs → larvae → adult) happens outside in water.

Answer 2

external