question: If Milo gets excited and his heart starts pumping more blood with each stroke, what happens to his heart rate?
choices.text: increases decreases
choices.label: A B
para: When the heart expels more blood with each stroke, the heart has to beat less often in order to maintain the same volume of blood flow.
para_anno.effect_prop: beat less often
para_anno.cause_dir_str: more
para_anno.effect_dir_str: less often
para_anno.cause_dir_sign: MORE
para_anno.effect_dir_sign: LESS
para_anno.cause_prop: heart expels more blood with each stroke
question_anno.more_effect_dir: increases
question_anno.less_effect_dir: decreases
question_anno.more_effect_prop: heart rate
question_anno.less_effect_prop: heart rate
question_anno.less_cause_dir: heart rate