Question

Which of the following is not an example of the use of a pheromone?

a.
Wolves mark their territories by urinating at the boundaries.
b.
Hyenas give off an odor that keeps different clans of hyenas apart.
c.
Poisonous snakes wind around each other and butt heads.
d.
Skunks release a rotten odor when they are threatened.​

Answer 1

A. because research not show yet about pheromones for wolves