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Answer:
Jan 13, 2014 - Discovery of new Tiktaalik roseae fossils reveals key link in evolution of hind limbs ... Discovered in 2004 by Shubin and co-authors Edward Daeschler, PhD, Associate Curator of ... It had gills, scales and fins, but also had tetrapod-like features such as a mobile neck, robust ribcage and primitive lungs
Explanation:
It is practically continuous, our blood is constantly circulating around our body passing through so many veins and arteries multiple times
a proton located in the atom is the nucleus
