Terms in order from smallest to largest: species, biosphere, cell

This organism is not capable of performing photosynthesis. (horseshoe crab) true false

Which experiment would most likely contain experimental bias

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?