I think the appropriate answer for the above question is the Organochlorine insecticides which is a chemical pesticide. Their mode of action varies but mostly affects the nervous system, they are highly persistent, their sensitivity to insects is least specific ( broad spectrum). Their long environmental persistence, results in fish, bird, and terrestrial animal death. The chemical groups of pesticides include the organophosphates and carbamates, organnochlorine, botanicals, synthetic pyrethroids, insect growth regulators and the microbials.
The capability of both leptin and cholecystokinin in which they
have a similarity when a person has decreased its food intake. A leptin is a
way of helping an individual to regulate energy in means of having to inhibit
its hunger while the cholecystokinin is responsible for having to stimulate
digestions.