Humans have a four-chambered heart. Two of the chambers receive blood, and two pump fresh blood out and into the rest of the body. However, not all hearts are structured this way. There is such a thing as a three-chambered heart....
The heart is the organ whose job is to pump out blood to other parts of the body. In humans, the heart is divided into four chambers. That is not the case for other organisms. Reptiles, for example, have a three-chambered heart. ...
Looking for online definition of SOPMOD or what SOPMOD stands for? SOPMOD is listed in the World's most authoritative dictionary of abbreviations and acronyms
TheM1911isasingle-action,semi-automaticpistolhandgun)chamberedforthe.45ACPcartridge.ItwasdesignedbyJohnM.Browning,andwasthestandard-issuesidearmfortheUnitedStatesarmedforcesfrom1911to1985,andisstillcarriedbysomeU.S.forces.ItwaswidelyusedinWorldWarI,WorldWarII,theKoreanWarandtheVietnamWar.Itsformaldesignationaso...
unreliable and was quickly replaced by machined steel construction for the Type 2 in 1951 and Type 3 in 1954. Then, in 1959, Soviet manufacturers finally perfected the stamped-steel technology and introduced the Modernized AK or AKM. This is the AK most commonly encountered around the ...