During photosynthesis, unused oxygen atoms form oxygen gas (o2) which is released as a waste product. how did these oxygen atoms originally enter the plant?

Suppose you are estimating the size of a blue crab population. what is the population size if the number marked in the first catch is 40, the total number in the second catch is 200, and the number marked in the second catch is 50?

How can you approximate the number of calories required to keep you in energy balance?

During the process of blank and molecules such as a glucose must use a protein channel to cross through a cell membrane