Toxicology: definition-elements. Measurement of toxicity, entry, distribution, storage, metabolism, induction and excretion of toxicants (pesticides), mechanism of toxic action: organochlorines, organophosphorus, carbamates, pyrethroides, others, selective toxicity.   Recognition and management of pesticides poisoning in humans and animals: Terms: carcinogenicity, mutagenicity, teratology, reproduction etc.