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Name a place where food is both chemically and physically.

Why is the respiratory system so important?

Human Body

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Fifth Grade Human Body Test

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Questions 12

Answers

1
Why is the respiratory system so important?
Our body's cells need oxygen.
Our food must be broken down.
It exercises our lungs.
Our body's cells need carbon dioxide.
2
Name a place where food is both chemically and physically.
intestines
mouth
trachea
colon
3
The heart, blood, arteries and veins are found in which system?
nervous
digestive
urinary
circulatory
4
How do the digestive system and circulatory system work together?
The digestive system makes our blood pump.
One breaks down food- the other carries it to cells.
The circulatory system helps move food through our body.
The circulatory carries food to the cells.
5
What happens when you inhale?
the diaphram contracts
your rib muscles relax
the diaphram relaxes
your rib muscles contract
6
What is the main difference between veins and arteries?
both carry oxygen
arteries have more carbon dioxide
both are exactly the same
arteries have more carbon dioxide
7
What are the smallest blood vessels?
aveoli
veins
arteries
capillaries
8
What do the kidneys do in your body?
filter/clean the blood
add oxygen to the blood
hold the urine
clean the urine
9
Which organ removes water from waste?
stomach
large intestine
mouth
small intestine
10
Where does the oxygen enter the blood?
air sacs
cilia
bronchioles
trachea
11
Name the gas that passes from the blood into the body's cells.
water vapor
carbon dioxide
nitrogen
oxygen
12
Where does food digestion begin?
colon
mouth
esophagus
stomach