Identify whether the statement is true or false, and why. “each type of receptor protein is specific to a certain signal or type of signal.” a. true b. false, it should read “receptor proteins can receive signals from many types of signal molecules.” c. false, it should read “receptor proteins are only used in synapses to receive neurotransmitters.” d. false, it should read “receptor proteins are universal and can receive signals from any type of signal molecules.”

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Twin boys have girlfriends one of the couples have a baby would the dna of the lil baby be the same as the couples dna bc the boys are identical twins

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.