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Author Question: Are protozoa mostly predators, capturing their prey by engulfing them and absorbing them into their ... (Read 76 times) |
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").