Did you know?
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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.
The seed-to-seed life of flowering plants.
It is difficult for Americans to grasp the depth of the poverty that is the everyday life of ...
(A) In hyperopia, light rays focus behind the retina, making it difficult to focus on objects at ...
Seed banks
A flat circular coil having 57 turns of very thin wire has a diameter of 9.5 cm and carries 7.2 ...
Pinworm Eating a Tomato