The surface area of a sphere can be approximated as follows: Surface area = 4tr2
where r is the radius of the sphere;
it is a constant that is roughly equal to 3.

Using the simple approximation above, calculate the surface area of a sphere with a radius of 2 meters.

O A. 16 m2
O B. 24 m2
O C. 9 m2
O D. 48 m2

Mr. olajuwan was in a horrific snowmobile accident. afterwards he had trouble walking and he had a loss of balance. which of the 4 major brain region was probably demaged

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?

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.