One of the limiting factors in human physical performance is the amount of oxygen that is absorbed by the muscles from the bloodstream. accordingly, entrepreneurs have begun selling at gymnasiums and health clubs bottles of drinking water, labeled “superoxy,” that has extra oxygen dissolved in the water. such water would be useless in improving physical performance, however, since the only way to get oxygen into the bloodstream so that it can be absorbed by the muscles is through the lungs. which of the following, if true, would serve the same function in the argument as the statement in boldface? (a) the water lost in exercising can be replaced with ordinary tap water (b) the amount of oxygen in the blood of people who are exercising is already more than the muscle can absorb (c) world-class athletes turn in record performance without such water (d) frequent physical exercise increases the body’s ability to take in and use oxygen (e) lack of oxygen is not the only factor limiting human physical performance

You will create a molecular clock model for an arthropod gene. follow these guidelines to make your model: . your timeline will span from 90 million years ago to the present. the common ancestor in your model is an arthropod that lived 90 million years ago. the gene that you'll track codes for a protein in the species venom . the dna sequence youll track contains 10 nitrogen bases. you can choose the order of the bases and where the mutations occur. this gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. to build your model,/ calculate the estimated time period it takes for 1 base pair to mutate. the first time period will only show the common ancestor. at the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences. the first and third descendant species will survive for the rest of the timeline. the second descendant species was extinct 50 million years ago. calculate how long it will take for one full base pair mutation to occur. explain your reasoning by constructing a mathematical equation