More friction between water and streambed will reduce the speed of flowing water. true or false.

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

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

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