1. Ancient ___'s purpose was to find and purify new substances for as manyuses as possible.2. were probably the first substances to be discovered. The science ofobtaining metals from ore and purifying them is called

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

About __ of the mass of the cell is water

Cells a and b are the same size and shape, but cell a is metabolically quiet and cell b is actively consuming oxygen. oxygen will diffuse more quickly into cell because . b the oxygen molecules inside cell b have a higher kinetic energy b. a its membrane transport proteins will not be saturated c. a the diffusion gradient there is shallowerd. b the diffusion gradient there is steeper