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Did you know?
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Did you know?
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
Did you know?
Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
Did you know?
About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
![Organisms exhibit a diversity of behaviours, which include (clockwise from upper left), foraging and](https://biology-forums.com/gallery/47/medium_33_09_09_11_10_08_14_1696693.jpeg)
![Blending inheritance formed the basis of nineteenth-century critiques of evolution by natural select](https://biology-forums.com/gallery/47/medium_234464_20_01_15_10_59_32_202432199.jpeg)