A diverse pool of helps ensure that individuals in a species will pass a variety of traits to their offspring.
A. Genes
B. Populations
C. Fish

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.

Satellites orbit earth in the a) mesosphere b) troposphere c) stratosphere d) thermosphere

Plants that we recognize today spend the majority of their life in the a. haploid phase. b. gametophyte phase. c. seed phase. d. diploid phase