Explain the role of nitrifying bacteria and denitrifying bacteria during nitrogen cycle

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

Name the types of burns one can get and which structures of the integument are damaged

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.