Which one of the following substances is normally found in urine?
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Polio is caused by
The shape of the outer part of the ear is like a __________.
Which component in tobacco makes it harmful for human consumption?
Which of the following glands is a source of the enzyme Ptyalin?
Majority of the fungal bionts of lichens belong to
Pneumonia affects which of the following organs of human body?
.......... helps the eye to adjust the focal length of the lens.