Did you know?
The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.
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.
Risk of death from motorcycle accidents (dashed lines) and passenger accidents (solid lines) per 100
The early development of the mammalian brain illustrated in schematic horizontal sections. Compare ...
Fetal Development in the First Trimester
Development of the Reproductive Systems
Transcription of a gene (Part 1)
Some possible allele arrangements and gene sequences in a heterozygous female