The heart works directly with which
Liver
Lungs
Kidneys
Brain

Lungs.

Explanation:

They bring the blood throughout the body, to help it function properly

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