What is a defining feature of mammals that is not present in most other OA.
OB.
C
D
Mammals maintain a constant body temperature.
Mammals can produce milk for their offspring.
Mammals have a nervous system with a spinal cord.
Mammals reproduce through internal fertilization.
O

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.