It was necessary for life to exist on Earth, that organisms’ possess the ability to pass, store, and pass on molecular information to the next generation develop. The two molecules capable of these two processes are RNA and DNA. What probably accounts for the switch to DNA-based genetic systems during the evolution of life on Earth?

Does masterbation affect height growth or loss of growth hormone?

Were you able to observe the nucleolus in any of the cells if so which ones

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.