Of the 3 organisms listed below, tell which two have the most recent common ancestor. 1. Spirulina, Halobacterium, human 2. vinegar eel, fruit fly, human 3. shark, zebra fish, human 4. Paramecium, yeast, human 5. orangutan, gibbon, human Solution 3. shark, zebrafish, human shark has similar function to human than zebrafish model such as metabolism, some give live birth to fully formed young, some lay eggs, 5. orangutan, gibbon, human share a common ancestor to humans. Humans have many features similar to the apes. A glance at the evogram shows the apes orangutan, gibbon would not form in one group that represents descendants from one common ancestor if humans were excluded..