HELP ASAP What is the reactant of lactic acid fermentation and the product that builds up during exercise?

A) oxygen and lactic acid
B) carbon dioxide and water
C) Glucose and other compounds
D) glucose and lactic acid

Are the earth's ocean floor and continents the same age geologically? why or why not?

Which statement best compares aerobic and anaerobic respiration

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.