only have ten min the graph shows population trends of 5 populations over one year. what happened to population b? the population showed an increase over time, followed by a decrease. a slight decrease in population over time resulting in extinction. a dramatic decrease in population over time resulting in extinction. a stable unchanging population over time.

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.