The renal tubule would be the vessel within the nephron loops that functions to collect ions and water back into the blood. In addition, these vessels are the one responsible for emptying the collecting duct and reabsorbs salts present in the bloodstream and disperses it back to the blood.
The first one because we evolved through using those structures like tail bones in humans.
Also clean up the Pepsi can and bottle in the background what are me monkeys?
As you can see in the picture presented below, the three classes of water have distinctive traits.
Pure substances contain only one element, they are not mixtures of different things.
The homogeneous mixtures have multiple elements, but they are so well blended together that you can't easily observe or separate them.
In heterogeneous mixtures, we can easily differentiate between different elements of the mixture.
Im not 100% sure but the best answer I can give is Prokaryotes because they came to be around the time oxygen did as well.