Answer: All of the above were mentioned
Explanation:
Alkaloids can be defined as organic bases, which are naturally occurring nitrogen e.g morphine, quinine, nicotine etc . It occurs naturally in both plant and animal, it occurs naturally plant because plant are naturally rich in it, same as it can also be found in animals. Over the years in 4000 plant species, 3000 different types of alkaloids were identified. More so, some alkaloids are addictive, and some narcotic drugs are alkaloids.
