The raphe system: Group of answer choices is important for balance and coordination. increases the brain's readiness to respond to stimuli. regulates the rate of production of cerebrospinal fluid. controls the sensory areas of the spinal cord.

19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase

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.

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture