Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
Did you know?
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
Organisms exhibit a diversity of behaviours, which include (clockwise from upper left), foraging and
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The activity recorded by PET scans during the performance of newly learned and well-practiced ...
Uncover the left arm and shoulder. Apply oil or lotion to the arm with effleurage from hand to ...
Structures of human DNA polymerase g (left) and T7 phage DNA polymerase (right) holoenzymes