How much of our current energy comes from fossil fuels

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca

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.