What does the lambic system do? a. registers feelings, such as fear and pleasure b. directs incoming sensory messages c. coordinates involuntary muscle movement d. connects the brains and the spinal cord

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

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.

Which characteristic should describe all evidence collected by a scientist? true obvious objective subjective