Question
The heart is composed of how many loops?
(1 point)
O 1
O 2
O 3
O 4
(1 point)
O 1
O 2
O 3
O 4
Answers
Answer
The blood vessels that carry blood away from the heart to the rest of the body are...
(1 point)
• capillaries
• veins
• arteries
• valves
(1 point)
• capillaries
• veins
• arteries
• valves
Answer
If you catch a cold, which component of blood do you rely on to help attack the virus that has invaded your blood stream?
(1 point)
• plasma
• red blood cells
• white blood cells
• platelets
(1 point)
• plasma
• red blood cells
• white blood cells
• platelets
Answer
Two key components to keeping your heart healthy that are within your control are exercise and....
(1 point)
• diet
• rest
• heredity
• environment
(1 point)
• diet
• rest
• heredity
• environment
Answer
Which component of blood is used to help create a scab after you cut your finger?
(1 point)
• plasma
• red blood cells
• white blood cells
• platelets
(1 point)
• plasma
• red blood cells
• white blood cells
• platelets
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