10 points

are easier to work with than reality and can be manipulated.

a. bservations

b. experiments

c. models

At which location in earth’s interior does the top density continue to increase as thickness decreases?

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.

How dose plate tectonics effect climate