Question

Male moths recognize females of their species by sensing chemical signals called pheromones. This is an example of ______.

Options

• habitat isolation

• gamete isolation

• behavioural isolation

• mechanical isolation

Answer 1

Male moths recognize females of their species by sensing chemical signals called pheromones. This is an example of behavioural isolation.

Explanation:

Male moths recognize females of their species by sensing chemical signals called pheromones, a form of behavioural isolation in which mating behaviour (chemical signaling) prevents interbreeding between species. This example shows how pheromones act as a premating reproductive barrier, facilitating species recognition and mating only within the same species.