For a particular plant, leaf texture is either fuzzy or smooth. a purebred fuzzy plant is crossed with a purebred smooth plant. all offspring are fuzzy. which sentence best describes the alleles for this trait? a. fuzzy is dominant over smooth b. smooth is dominant over fuzzy c. the alleles are co-dominant d. the alleles have incomplete dominance

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.