A large molecule made up of smaller molecules called amino acids ATP
carbohydrate
lipid
protein
phospholipid
nucleic acid

Protein

Explanation:

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary