Glycerol + 2 fatty acids + 1 phosphate group; makes up
membrane bilayers of cells;
hydrophobic tail and
hydrophillic head
what is this

Melissa lives in a town called greendale. she discovers that when she lights a match and holds it near her kitchen faucet, the little flame grows into a larger fire. melissa is surprised because she thought the water would extinguish the flame rather than ignite it further. her mother tells her that the water might be contaminated with dissolved methane, a primary component in natural gas. melissa investigates the matter and finds that cases of methane contamination started shortly after a company began fracking for natural gas in the area. based on this information, which three statements are plausible consequences of fracking in greendale?

9. the history of life on earth is recorded in

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