Question

21) Ants move in a line because of their sense of:-
a) sight.
b) smell
c) taste
d) hearing​

Answer 1

ANSWER:

As worker ants leave the nest to find food, they leave behind a chemical trail called pheromones. The ants walk in a straight line because they follow the scent the leader left behind.

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Answer 2

Answer:

The correct option is found to be option(b) Smell.

Explanation:

• Similar to how Hansel and Gretel in the fairy tale left a trail of pebbles to find their way home from the jungle, the ants leave behind a fragrance as they go that they use to find their way back to their nests. Pheromone is the name given to the aroma that ants leave behind. Because the leader's smell is left behind, the ants follow it to form a line.
• Ants form a line when they detect the scent of the leading ants.
• Pheromones are chemical compounds that are left behind by worker ants as they leave the colony in search of food. Because they adhere to the scent that the leader left behind, the ants march in a straight line.

Therefore The ants leave a stench on the ground as they crawl. To locate their path, the other ants follow the scent. The ants then attempted to maintain their trail by following the scent when it was obstructed.