A farmer needs to control pests in order to produce healthy food crops. Which method of pest control would most likely have the smallest impact on the environment? A spraying the crops with liquid pesticide
B
using beneficial insects that eat the pest insects

С
having the crops dusted with powdered pesticide
D
vacuuming the pests up using a gas-powered machine

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.