Histamines are chemicals released by the body as an allergic response.They help the body by reacting when their are "intruders" so when enters, histamine acts as a messenger and sends out a signal for the body to create a reaction helping to get rid of teh intruder through some type of reaction.
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Blood doping refers to an athlete's attempt to increase their number of red blood cells by reinfusing some of their own blood before an athletic event. Doping is the action of using drugs to enhance performance or athletic ability. In sports it may be done through blood transfusions, injections of erythropoietin and also the injections of synthetic oxygen carriers.
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propulsion of a sperm cells occurs due to the sperm's tail containing a large number of proton channels called Hv1 and It gets energy from the seminal plasma.
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ok so In most regions of the world, over 70 percent of freshwater is used for agriculture.
