"Pheromones" is the one among the following choices given in the question that these messengers are called. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer has actually come to your expected help.
Pheromones can be defined as the chemical messenger which is excreted or secreted by the organism like mammals, fishes and insects to trigger social response by the member of the same species.
There are different types of pheromones, one of them is sex pheromones which indicates that the female wants to breed. They serve as an indicator for breeding of the member of same species.
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells.
