A small child managed to eat a bit of dirt while playing outside. Which of the following would prevent the child from getting sick from the bacteria ingested? If there were not a pathogenic bacteria in the dirt
If the child had previously taken antibiotics for that type of bacteria
If the child did not have the vaccination to fight the bacteria
If the child’s cells had complementary receptor molecules that bind to the bacteria

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.

Which label correctly identifies what x represents in the concept map?

Me. henley said, “in the rat race we call life, only the strong will survive.” he may have been referring to