Review the chart, which shows the population sizes of three African animals in 1990 and 2000.

lion and cheetah populations compete for the food source of zebras ,and lions outcome cheetahs

micro/nanoscale topography surface exhibits many prominent properties and is extensively employed in biomedical device, microfluidic device and energy device fabrication. additionally, the clinical applications of biomaterials can be largely expanded with of nanostructured surfaces.

i believe the answer would be b. hope it : )