True or false :
1) ocean fish avoid building up excess salt by not drinking water

2) some chordate are considered invertebrates because they have a dorsal nerve cord but not a bony spine

only answer if you know (: x

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.