EASY
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The circulatory system consists of heart, blood and blood vessels.

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Important Questions on The Human Body

EASY
In plants, respiration occurs during day and night, Do you agree?
MEDIUM
Discuss the respiratory system principles.
MEDIUM
Why does the dust and germs do not enter the body through nose?
MEDIUM
 The balloons in the plastic bottle represent _____.
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EASY
Groups of cells join together to form organs.
EASY
Plants do not give out carbon dioxide during respiration.
EASY

Name them:

Hard substance protecting the soft matter in our head _____.

MEDIUM
Take a deep breath. You will feel air coming in and filling your lungs. Where did the air enter in? What part of your body got bigger?
MEDIUM
The trachea branches into two thinner tubes called _____.
MEDIUM

Describe the circulatory system of human beings.

EASY
Fill in the blanks by choosing the correct word from the brackets:
(heart, skeletal system, nose, brain, veins, nerves)
Always breathe through your _____.
EASY
Name the products formed during respiration.
MEDIUM

Arrange the following in the correct order by writing the correct number against each. Start by writing 1 for the cell.

Tissue  
Organism  
Organ  
Cell  
Organ System