How big are viruses? a. big enough to be seen by the naked eye but smaller than a human egg cell. b. too small to be seen without the aid of an electron microscope. c. too small to be seen without the aid of a light microscope. d. big enough to be seen when cultured like bacteria.

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.

ur answer is e & d

explanation: