What word describes all of the processes that happen in a living thing?

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.

Why do the circulatory systems of land vertebrates have separate circuits to the lungs and to the rest of the body?

What is the role of rna polymerase? it creates the dna strand its the dna strand. it transcribe the dna strand il translates the dna strand save and exit next sube mark this and retum