In 1953, James and Francis proposed that DNA is made of two
chains of nucleotides held together by nitrogenous bases that have weak hydrogen
bonds.
O Hershey, Chase
Hershey, Crick
o Watson, Crick
Watson, Chase
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Give the biological term for: structures that display characteristics of living organisms only within living cells

What causes temperature extremes in the desert

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.