Which transaction(s) need to rollback?                 (1 Point)         Which transaction(s) have to be killed?                 (1 Point)         Which transaction(s) can execute completely?     (1 Point)

Using Figure 15.7 Merge join with the following relation R and S: How many rounds for the outer while loop? _______

             Transaction A can commit on this schedule? (True/False) 

              Deadlock occurred in this schedule? (True/False) 

Given transaction T1 deletes index 0030. When T1 reached to the leaf node, it is safe? (True/False) 

Click on the mushroom in the following fungus diagram. 

Complex cells evolved from simpler cells, and this was a significant event in the history of life!

All chordates share four fundamental features as seen in the below figure of a juvenile frog. Match the chordate trait to its human equivalent:

Staphylococcus aureus is a common skin bacterium that usually causes no harm. However, when it enters the bloodstream through a cut or surgical site, it can cause dangerous infections. How should this microbe be classified?

Which of the following statements is NOT true regarding prokaryotes?