Population growth is: evenly distributed around the world increasing faster in some countries than in others decreasing worldwide not a cause for concern

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.

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm