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- 1. Multiple Choice
Which system pumps blood through your body?circulatorydigestiverespiratorymuscular - 2. Multiple ChoiceWhat important substance is replenished as blood flows through the heart?ironnitrogenwateroxygen
- 3. Multiple ChoiceAs you exercise, your circulatory system works with which other system to take in oxygen?musculardigestiverespiratoryendocrine
- 4. Multiple ChoiceWhere does digestion start?mouththroatstomachintestines
- 5. Multiple ChoiceWhich part of your digestive system absorbs nutrients into your bloodstream?stomachintestinemouthbladder
- 6. Multiple ChoiceWhat happens to what's left of our food after it goes through the intestines?goes back to the stomachabsorbed into bloodbecomes stomach aciddisposed of in the bathroom
- 7. Multiple ChoiceAs your body works harder, what happens to your HEART rate?increasesdecreasesstays the samebeats backwards
- 8. Multiple ChoiceIf you take a rest after running a mile, what happens to your BREATHING rate?increasesdecreasesstays the samenone of these
- 9. Multiple ChoiceYour lungs are part of which body system?circulatoryrespiratorydigestivemuscular
- 10. Multiple ChoiceWhen Dr. Jeff bends his arms to lift this weight, what is happening to his bicep muscle?it is contractingit is relaxingit is twisting upit gets longer
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