All of the elephants living in a wildlife preserve would be considered a

All of the elephants living in a wildlife preserve would be considered a population.

Explanation:

A population is defined as the whole number of animals in a region. In this example, the total of elephants living in an area or region (wildlife preserve) are part of a population. Also, the members of that population found there are able to interbreed with each other.

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.

the answer is d. chordata