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Cardiovascular and Respiratory Systems HW
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Why does your blood need to circulate?
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Your answer
What human body feature allows the respiratory system to take in oxygen?
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muscles pull the lungs open to draw in air
the heart is divided into four chambers
the excretory system carries waste products to the lungs
the stomach muscles are able to churn and mix food
What is a tissue?
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a piece of soft paper
a single cell
a collection of the same types of cells that have one job
a collection of different types of cells
The heart, arteries, and veins are all part of what body system?
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respiratory
cardiovascular
excretory
muscular
What human body system do the lungs belong to?
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nervous
cardiovascular
respiratory
skeletal
How many chambers does the heart have?
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2
4
3
5
What body system in responsible for carrying oxygen and other nutrients to other organs throughout your body?
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respiratory
cardiovascular
blood vessels
nervous system
What are the air sacs in the lungs called?
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Your answer
What muscle forces air into your lungs?
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Your answer
When is blood blue?
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Your answer
First Name
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Last Name
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E-mail
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Your answer
Color
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Your answer
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