Biology
In what season do the leaves of some trees turn colors and start falling to the ground?
More Questions from Biology
Which of these is a feature of the cardiovascular system of the human body?
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What natural biological defense system protects the body from disease and fights off germs?
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What is the study of interrelationships of animals and plants to their environment?
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Which of these scientists along with James Watson helped discover the DNA molecule?
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What hereditary disease allows large amounts of mucus to build up in the lungs?
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