Sixty degrees Fahrenheit at the end of a hot summer feels cold, whereas the same temperature at the end of a cold winter feels hot. How is it that the same stimulus produces two different sensations? Can you think of another stimulus, besides temperature, that produces this effect?

One of the purposes of transcription is to produce a sequence of bases that

Which is not a type of symmetry? a. asymmetryb. radial symmetryc. bilateral symmetryd. lateral symmetry

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