Is an opiate antagonist that may in recovery from alcohol dependence.

The term antagonist denotes a compound that occupies a receptor, but does not activate the neuron. Naltrexone is an opiate antagonist that may help in recovery from alcohol dependence. The goal of consuming naltrexone is
 to reduce and suppress cravings for alcohol or opiate drugs and to prevent
 opioids from working in the body.

The moths will eventually become extinct

D.) domain, kingdom, phylum, class, order, family, genus, species