Step-by-step explanation:
cocaine provides protection for the coca plant as it protects coca plant leaves from pest feeding.
Cocaine is the drug which is obtained from the plant source and it exerts insecticidal impacts and protects the coca leaves.
cocaine carry chemicals that are toxic to insects and it has the insecticidal effect that obstructs the reuptake of the octopamine which is a neurotransmitter of insect and that controls the metabolism and function by this way cocaine provide protection for the coca plant.