Because the bamboo plant on which the panda feeds is now scarce naturalists are worried about their chances of survival

Analogy- 1 is to arete as 5 is to cirque horn glacial valley hanging valley

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.

What substance acts to prevent sudden ph changes in bodily fluids?