The white of an egg consists mostly of a protein called ovalbumin. Under normal circumstances, ovalbumin is a sphere-shaped molecule, and the egg white is clear and runny. Why does the cooked egg appear solid and white?

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?

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?