Question

how do secondary metabolites useful for mankind?
​

Answer 1

Answer:

plants produce a high diversity of natural products or secondary metabolites which are important for the communication of plants with other organisms. A prominent function is the protection against herbivores and/or microbial pathogens. ... This will improve their resistance against herbivores and/or microbial pathogens.

Answer 2

Answer:

Secondary metabolites are the organic compounds  produced by the plants, bacteria or fungi. These metabolites are important as they maintain the long term effects of the organism and their deficiency may cause long term impairment.

These secondary metabolites are often used by the humans. They are used as a drug that provide protection against the pathogens and improves the immune system. Secondary metabolites like flavonoids are directly eaten up by the plants that provide nutrients source to humans. Different types of spices and rubbers are produced by the secondary metabolites.