
Circulatory and Respiratory System
Authored by Melanie Waters
Science
7th Grade
NGSS covered
Used 9+ times

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44 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
White Blood Cells
attack viruses only
attack germs
protect red blood cells
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Capillaries
connect arteries to veins, gasses are exchanged
connect heart valves together
connect arteries to other arteries
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Arteries
flexible, carry blood to the heart
not flexible, carry blood away from the heart
flexible, carry blood away from the heart
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Veins
not flexible, blood is a darker shade of red
flexible, blood is a darker shade of red
flexible, blood is a bright red
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of heart valves?
keep blood flowing in one direction
pump the blood
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lungs
2 large organs containing oxygen
2 large organs containing carbon dioxide
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Alveoli
millions of tiny air pockets that exchange oxygen for carbon dioxide
millions of tiny air pockets that contain oxygen
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