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- 1. Multiple ChoiceThe main function of the circulatory system isTo give the body structure and supportExcrete wastetransport blood, nutrients, and gases throughout the bodyto transport messages from the body to the brain
- 2. Multiple Choice
The job of the heart is to . . .
pump blood around the body.
send food to the small intestines.
break down food.
give energy to the body.
- 3. Multiple Choice
State one reason why blood at location B contains more oxygen than blood at location A.
because blood at location A goes to the lungs
because blood at location A comes from the lungs
because blood at location B comes from the lungs
because blood at location B goes to the lungs
- 4. Multiple Choice
What is the responding variable in this experiment?
Trial number
type of exercise
average heart rate
average heart rate before and after exercise
- 5. Multiple Choice
State the general relationship between exercise and heart rate in humans.
If a person exercises, then their heart rate will not change
If a person exercises, then their heart rate will increase
If a person exercises, then their heart rate will decrease
Person exercising and heart rate are not related
- 6. Multiple ChoiceThe Blood Vessels where the exchange of Oxygen and CO2 (carbon dioxide) takes place are the_______.ArteriesVeinsCapillaries
- 7. Multiple Choice
How does the heart work?
It pumps blood first to the lungs, back to the heart and then around the rest of the body.
It pumps blood first to the rest of the body, back to the lungs and then to the heart.
It pumps blood around the rest of the body, back to the heart and then to the lungs,
- 8. Multiple ChoiceWhich best describes the relationship between the muscular system and the circulatory system?The circulatory system captures carbon dioxide from the air for muscle energy.The circulatory system produces red blood cells to bring oxygen to the musclesThe circulatory system provides a framework for muscle movementThe circulatory system delivers oxygen for muscle energy
- 9. Multiple ChoiceWhat do Red-Blood cells do?Carry oxygen from the lungs to the body cells and transport carbon dioxide from the cells back to the lungskeeps blood flowing in one direction to the heart and prevent blood from flowing backwardsCollects blood from the capillaries and drain it into the veinsBring nutriients to the cells and carries away waste materials.
- 10. Multiple Choice
What is blood pressure?
Pressure of the blood against the walls of the veins.
Pressure of the heart pushing the blood out.
Pressure of the heart receiving blood.
Pressure of the blood against the walls of the arteries.
- 11. Multiple ChoiceThis type of vessel carries blood TO the heart:veinnervemuscleartery
- 12. Multiple ChoiceABCD
- 13. Multiple Choice
Which is 2?
Veins
Arteries
Capillaries
- 14. Multiple Choice
If your pulse rate increases, your heart is beating
slower than before
faster than before
more forcefully than before
with less pressure than before
- Answer choicesTagsAnswer choicesTags