In the earliest stages of development the embryos of a fish, calf, human, and tortoise all look similar. in the next stage the calf and the human look most alike. what assumption can be made based on this similarity?

think it is The calf, human and tortoise are more closely related to one another than the fish.

Explanation:

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 question isn't complete here so i can't right an answer '_'