The focus on neuroscience box "the neuroscience of personality: brain structure and the big five" described an mri study that investigated whether personality traits are associated with differences in brain structure. what was a major conclusion of this study?

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Name the organism that belongs to the kingdom protista.

The function of the ciliary escalator is to