Question

How did the ant recognise a friend?​

Answer 1

Answer:

Ants recognize their friends because they have strong ability to smell. They know each others smell. The smell is of a hormone released by ants called Pheromone.

Explanation:

I hope that it would be helpful.

Answer 2

They smell chemical called pheromones that they produce from special glands and every ant can produce them.

They smell that particular chemical and thus differentiate between other species and their friends...

i hope it is clear to you....