Which statement about hail is correct? a. it is rain that falls through a layer of freezing air. b. it may freeze at high elevations many times before falling to the earth. c. it forms in winter in low stratus clouds. d. it is a liquid form of precipitation.

This is the amino acid cysteine. circle the amine group, put a box aroundthe carboxylic acid group and use a different colored pencil/pen to circle the sidechain (r group). h o | ||nh2— c- c-oh | ch2 | sh

What is the compliment dna strand to the following sequence: ttgactaggcta

What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.