Which of the following can cause scientific knowledge to change?

a. negative public opinion against existing knowledge

b. a change in observations that challenge existing knowledge

c. a change in government regulations that makes existing knowledge inconvenient

d. media reports that contradict existing knowledge

Look at the punnett square for an x-linked recessive disease. is it possible for a female offspring to have the disease?

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.

Will mark brainliest. (20 points) many have pigments structures known as eyespots that detect direction of light. a. b. archaebacteria c. protists d. none of the above