"why is petroleum the primary fuel used for transportation in the united states? i. it has a high energy value per unit volume. ii. it has quick start and stop times for providing energy. iii. it produces a low amount of pollution per joule."

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

What is a photon? a. part of a ribosome b. a light particle c. a carbon dioxide molecule d. part of a chloroplast b.a light particle

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.