Demographic transition begins changes in society that? a. lower the birth rate
b. increase the birth rate
c. lower the death rate
d. increase the death rate

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.

In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?

During photosynthesis, hydrogen ions are most directly used to in the chloroplast pictured above. a) make glucose b) make chlorophyll c) produce carbon dioxide d) drive the production of atp