What is a pheromone?

a.
a chemical used with the members of the same species to communicate over a distance

b.
any behavior or stimulus, not just odor, that inititates reproductive activity

c.
any chemical that causes strong attraction or repulsion

a

Explanation:

bees release pheromone to communicate they attacked someone, never touch a bee if it stings you

Honestly, I think this is all of the above.

Explanation:

There are different types of pheremones, such as fear, that alerts other species that something is happening, or an alert pheremone that puts the group of organisms on the defensive. There is also a reproductive pheremone to let the male of the species know that the females are ready to reproduce.

If this isn't a select all that apply, I would chose C as the best option. It seems to sum up everything I just said.

the answer for this question would be d. glaciers