In an estuary a zooplankton consumes a phytoplankton with a small globule of pcbs attached to it. a fish consumes the zooplankton as well as many other zooplankton. a larger fish consumes the small fish and then a gull consumes the larger fish. the increased concentration of the chemical at the top of the food chain is an example of

How do adaptation affect a 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.

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.