Use information from the paragraph to answer the question.  Question:   Asa is running in a race and his body temperature decreases. His skin's blood vessels increase or decrease in diameter?    Paragraph :  When your brain senses that your body temperature is increasing, it sends messages to the blood vessels in the skin to increase in diameter.
decrease

Use information from the paragraph to answer the question.  Question:   Suppose that Mary smokes cigarettes for 20 years. If you measured the oxygen levels in her blood before she started smoking and compared them to oxygen levels later in her life, what would you find less oxygen in her blood later in life or more oxygen in her blood later in life?    Paragraph :  Smoking reduces the amount of oxygen available for diffusion at the lungs, so less oxygen gets absorbed and blood is oxygenated to a lesser degree.
less oxygen in her blood later in life

Use information from the paragraph to answer the question.  Question:   If valence electrons are far from an atom's nucleus, the atom is likely bigger or smaller?    Paragraph :  In bigger atoms, valence electrons are farther from the nucleus.
bigger