Which of the following is a vector quantity? A. distance of 25 km along Highway 66
B. a difference of 6°C between Point A and point B
C. an increase in a mass of 14 kg
D. a velocity of 2 m/s Northwest

Use the drop-down menu to complete the statement. an electron in the first energy level of the electron cloud has an electron in the third energy level. a. a lower energy thanb. a higher energy thanc. the same energy as

The location of the stomach is the diaprham

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis