PLEASE PLEASE PLEASE HELP!!! Iodine 131 has a half-life of about 8 days. How long will it take for the radiation of the isotope to go from 100 g to 12.5 g?

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics

What are the pros and cons of transect sampling?

What if the yeast were extremely active and produced more than 100ml gas. would you know? why/why not