Exactly what your blood sugar level should be two hours after meals is up for debate. As of 2015, ACE guidelines call for the tightest control, with two-hour readings below 140 mg/dl. The Joslin Diabetes Center and the American Diabetes Association suggest postmeal readings below 180 mg/dl.
Reproductive cells, or gametes-sperm and eggs-have half as many chromosomes as somatic cells, or one set of 23 chromosomes in humans. The number of chromosomes in somatic cells varies widely among species: 18 in cabbage plants, 48 in chimpanzees, 56 in elephants, 90 in hedgehogs, and 148 in one species of alga.
The male reproductive system includes the testicles, which produce testosterone and sperm. It takes roughly 72 days for sperm to be created, and sperm are stored in the epididymis (the outer structure of the testicles) for anywhere from 15 to 25 days.