How have humans changed the atmosphere of the planet in the past 200 years

Explain how light energy is turned into chemical energy? ! due tomorrow!

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.

Draw the conjugate acid for the following base. remember to include charges and non-bonding electrons where necessary.