Which cell organelle is most responsible for ensuring that the cell obtains the necessary materials to maintain homeostasis?

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.

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

Bio molecules are essential to all living things. which biomolecule is “d” from the table