Which level of ecological organization make biomes?

Nucleic acid certain protein cell membranes certain carbohydrates

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

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer