When the oil, urushiol, from the poison ivy plant is absorbed through the skin, it oxidizes and forms a substance called quinone. Quinone reacts with skin proteins creating a complex that now triggers an immune response. Quinone is an example of a: .
a) antigen-presenting cell
b) hapten
c) leukotriene
d) interleukin
e) artificial passive response

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half

Benito is doing research on the effects of florida's elevation on its climate. his notes include the following: 1. the average elevation of florida is 30 m above sea level. 2. the highest point in florida is britton hill, which is 105 m above sea level. 3. the change in temperature from 0 m to 1,000 m is 7 °c. what can benito conclude about the effects of florida's elevation on its climate? a.) florida typically experiences cold temperatures and temperature changes within a narrow range. b.) florida typically experiences cold temperatures and temperature changes within a broad range. c.) florida typically experiences warm temperatures and temperature changes within a narrow range. d.) florida typically experiences warm temperatures and temperature changes within a broad range.