Melissa and ashley play tennis every afternoon. Twenty minutes into the game they both start to breath heavy, sweat, and feel their heart beat faster. which two body systems are working together to cause these reactions? A. Digestive and Reproductive
B. Respiratory and Circulatory
C. Endocrine and Urinary
D. Nervous and Digestive

T(s) in2os] (m) 0 185 2.39 546 1.90 725 1.70 the decomposition of n205 can be described by the equation 2.68 given these data for the reaction at 45°c in carbon tetrachloride solution, calculate the average rate of reaction for each successive time interval. ntr s to 185 s 185 s to 546 s 546 s to 725 s number number number reaction rate: m/s m/s m/s