More than a billion years ago, the continent of africa hit north america, generating enormous pressure and heat while pushing up the blue ridge mountains to a height of 30,000 feet. most of these mountains have since been worn away by wind, rain, and the growth of living organisms. the order of the rock cycle in this case is best described as a) igneous, sedimentary. b) metamorphic, igneous. c) igneous, metamorphic. d) metamorphic, sedimentary.

What is the most appropriate method of gaining weight (muscle mass)

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.

Draw the farm's ppf for corn and beef. draw a point that shows an inefficient combination of corn and beef. label ita. draw a point that shows an unattainable combination of corn and beef. label itb. draw a point that shows an efficient combination of corn and beef. label itc.