Which type of soil can retain the greatest amount of water?

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

The direct energy source that drives atp synthesis during respiratory oxidative phosphorylation is