What is the most likely elevation of point X? 115 feet
90 feet
135 feet
130 feet

Because 115 was graded as incorrect, then would the answer be 135 feet instead because the last contour line is actually the one WITH the hachure lines on it, of 150 feet elevation??!

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.