4. The diagram below illustrates the release of chemical A from a human cell in response to a specific stimulus. Which cell structure plays a direct
role in the release of this chemical from the cell? *

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

Gram-negative bacteria have a cell wall that is! and does not accept the stain, making itappear

Creating new things to solve problems and improve life depends on the close interaction of which two fields?