NY Regents Life Science Biology Practice Questions - Regents Examination In Life Science Biology Exam

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After a person begins running, breathing rate and heart rate both increase. Which statement best explains why these systems respond together?

The respiratory system makes blood cells, and the circulatory system stores oxygen The two systems interact to deliver more oxygen to cells and remove more carbon dioxide The digestive system stops all cell activity during exercise The nervous system replaces the need for oxygen during exercise

Correct Answer:

The two systems interact to deliver more oxygen to cells and remove more carbon dioxide

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