The author mentions the trail pheromone of the lea...

Câu hỏi: The author mentions the trail pheromone of the leafcutter ant in the second paragraph to point out________.

A how little pheromone is needed to mark a trail

B the different types of pheromones ants can produce

C that certain ants can produce up to one milligram of pheromone

D a type of ant that is common in many parts of the world