Circulatory System
Passage
•
Science
•
6th - 8th Grade
•
Hard
Jason Lett
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of blood vessels in the circulatory system?
To carry blood throughout the body
To produce blood cells
To filter waste from the blood
To store oxygen
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of blood vessel is responsible for carrying blood away from the heart?
Arteries
Veins
Capillaries
Lymphatic vessels
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where does the exchange of oxygen and carbon dioxide primarily occur in the circulatory system?
Capillaries
Arteries
Veins
Heart
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What feature of veins prevents blood from flowing backward?
One-way valves
Thick walls
Elastic fibers
Muscle contractions
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do veins appear blue when observed from the outside?
Because of the scattering of light through the skin
Because they carry blue blood
Because of the presence of blue pigments
Because of the reflection of the sky
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which blood vessels are the smallest?
Capillaries
Arteries
Veins
Drop of Blood
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which blood vessels are the largest?
Veins
Arteries
Capillaries
Heart
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