Algunos ejemplos del elementos y compuesto químicos​

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

The element that has the greatest electronegativity is

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion