Samantha conducts the procedure several times with several test subjects. Her data show that heart rate increases with exercise, sometimes becoming about twice as fast. How do the data that Samantha obtained help explain the way the body maintains homeostasis during exercise? Include the activities of at least three body systems in your explanation

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.