What two weather condotions are needed for a tornado to form

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

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from