A stroke can result in a number of visual problems, including visual neglect, decreased visual acuity, diplopia (double-vision), squint, and homonymous hemianopsia (visual field defects).
Natural Selection. Natural selection is the process by which individuals with characteristics that are advantageous for reproduction in a specific environment leave more offspring in the next generation, thereby increasing the proportion of their genes in the population gene pool over time.
Sexual reproduction. A. helped maintain a slow rate of evolutionary change. B. limited the material in which natural selection can act upon. C. increased genetic variation. D. maintained the same gene combinations over time.