1. Is the water in the smaller bowl dirty? Why or why not?
2. What happened to the water in the larger bowl?
3. How did the water get into the smaller bowl? Briefly explain the process.
4. This project simulates a real world process. What does the plastic wrap represent? What does the water in the cup represent?
5. Which two parts of the water cycle are at work?

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions,because prokaryotes don't have nuclei.