Use the chart below (the chart shows grippers, snippers, stabbers, and grinders.) and what you know to answer this question. Which of the labels could be applied to dinosaurs that swallowed their food without chewing?

A. Grippers

B. Snippers

C. Stabbers

D. Grinders

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.

Moving down the ramp from 6 meters to

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?