Plasma Membrane, see question attached

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

Which example would the nurse consider to be a part of systems thinking theory?

The cell membrane controls what enters and leaves the cell. which of the structures in the diagram below is the cell membrane? — f оооо