What did the beak structure of the finches on the galapagos islands tell darwin about the different species?

What is the next step in muscle contraction after the actin changes shape? (apex)

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

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.