What type of plate boundaries illustrated in the picture above

The table below shows the elements that mainly comprise each of the four layers of earth: elements in layers layer main elements crust oxygen, silicon mantle iron, magnesium outer core iron, nickel inner core iron which of these elements make up the layer that is 0.2 to 1.1 percent of earth's total diameter?

The variation among individuals, on which natural selection acts

Acodon consists of bases and specifies which will be inserted into the polypeptide chain.