Based on its location on the periodic table, how many electrons does nitrogen have in its outer energy level? 3 4 5 6

Afamily has a y-linked disease that affects the father. what is the chance of a male offspring inheriting the same disease? oa. 100% ob. 50% oc. 25% d. 0%

What is the relationship between absorbance of light and the rate of photosynthesis?

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -