What is the difference between characteristics determined by genes and characteristics determined by the environment?

Why is it incorrect to say that mitochondria function only as energy factories with cell

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.

Compare and contrast your sells take in oxygen, water, and food. what is one waste product that leaves your cells?