What protects the sperm and then escorts them on the beginning part of thier jouney

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

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

How does the carbon cycle involve an exchange of carbon