Summarize the Case Study from Science on pages 10 and 11 about the Pfennig experiment. In the summary, explain how their experiment illustrates the scientific process.

Liquid water turns into water vapor at which step in the water cycle

Can a trait be both polygenic and have multiple alleles? explain why or why not.

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls