Periodic table below, which elements are predominantly gases with low densities

Which part of cellular respiration must occur before any of the other steps can occur

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

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.