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Deoxygenated blood from the body drains into the right atrium of the heart through the superior and inferior vena cava blood vessels. The blood then travels from the right atrium, through the tricuspid va...

DNA is a universal code for all living beings known to man. There are four nucleotide bases in DNA and RNA, the combinations of these sequences are what determine the order and length of a polypeptide. Ev...

z=(−b± sqrt(b2−4ac))/2awith a = 1, b = −10 and c = 29. Substituting these coefficients givesz = (10±􏰂sqrt((−10)2 −(4×1×29)))/ 2×1= 5 ± 2i

PV=nRT V=0.8 dm³=0.8 x 10^-3 m³P= nRT/V R= 8.31 J K^-1mol^{-1 ...}

What is speciation?When a new and distinct species evolves from an ancestor speciesReproductively isolated from the ancestor/other species2. How does natural selection work?a. Population of individuals, w...