Achlorine atom reacts with a sodium atom to form sodium chloride, nacl. a chlorine atom can also react with another chlorine atom to form a chlorine molecule, cl2. which statement best explains the behavior of chlorine in these two reactions?

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.