¿Es correcto asegurar que un músculo se estimula por la mediación de un nervio? Justifique la respuesta.

What would be the most likely result if the ph of the stomach were increased to 5

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.

The response is the basis for vaccination. primary secondary tertiary none of the above