which taxonomic group of land plants, still in existence today, was the dominant group of land plants when the angiosperms began their rapid increase in speciation and distribution?

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

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.

Why do oceanic plates tend to subduction when colliding with a continental plate