Hy do phospholipids form a bilayer in water? The phosphate portions repel each other.
The hydrophilic and hydrophobic parts attract each other.
The phosphate portions attract water, and the lipid portions repel water.
The lipid portions attract water, and the phosphate portions repel water.

How is anaerobic respiration affected by changes in temperature? (5 points)based on the conditions of early earth, what conclusion can you draw about the amount of anaerobic respiration that was occurring at earth’s beginning? explain your answer.(5 points)if there was a sudden drop in temperature after the evolution of the first living cells, predict how that might have affected the changes in the atmosphere and the evolution of cyanobacteria and other autotrophs. explain your answer. (5 points)