The sun has many different layers that describe its structure. In which layer is the temperature of the sun cooler than the core and dense enough that thermal radiation is sufficient to transfer the intense heat of the core outward? A. photosphere
B. convection zone
C. radiation zone
D. photosphere

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis

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.

What do all of the above organisms have in common