Q: Q: How many layers of phospholipids does the cell membrane contain? Choices: - four - five - three - two A:
A: two

Q: Q: What is the series of changes in the life of an organism? Choices: - insect metamorphosis - evolution - circle of life - life cycle A:
A: life cycle

Q: Q: The temperature of the products is typically lower than the temperature of the reactants in what type of reaction? Choices: - autotrophic - exothermic - parabolic - endothermic A:
A: endothermic

Q: Q: What is caused when circulating blood puts pressure on the walls of blood vessels? Choices: - aneurysm - atherosclerosis - high cholesterol - blood pressure A:
A: blood pressure