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Review unit 2 Science 5
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What is true about plants?
Plants have different parts like roots, stem and leaves.
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Which of the following gases make up the largest percentage of the air in earth’s atmosphere?
nitrogen
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What are the organs in the respiratory system of humans?
nose, windpipe, lungs, diaphragm
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Which of the following is NOT transported by blood?urine; digested food; wate;r oxygen
urine
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The plant transport system transports _____, _____, _____, and ______
food water oxygen and carbon dioxide
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Which part of the human body is responsible for pumping blood to all the parts of the body?
heart
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Why should we water our plants?
Water is essential because it is needed for growth and development. It is important in making plant food.
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What is the function of the respiratory system?
inhaling oxygen/exhaling carbon dioxide
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What is the function of the lungs?
They are responsible for the taking in oxygen and the removal of carbon dioxide from the body.
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Which is responsible for the transportation of water and minerals up from the roots and around the plant?
Xylem
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