29. According to the passage, the highest amount of pheromone vapor is found (A) in the receptors of the ants (B) just above the trail (C) in the source of food (D) under the soil along the trail

25. The author mentions the trail pheromone of the leafcutter ant in line 11 to point out (A) how little pheromone is needed to mark a trail (B) the different types of pheromones ants can produce (C) a type of ant that is common in many parts of the world (D) that certain ants can produce up to one milligram of pheromone

29. According to the passage, the highest amount of pheromone vapor is found (A) in the receptors of the ants (B) just above the trail (C) in the source of food (D) under the soil along the trail

其他試題

29. According to the passage, the highest amount of pheromone vapor is found
(A) in the receptors of the ants
(B) just above the trail
(C) in the source of food
(D) under the soil along the trail