Two primary techniques to identify use cases are USER GOAL TECHNIQUE AND EVENT DECOMPOSITION.
Use case refers to an activity which a system perform as a result of the request input by a user.
User goal technique is used to determine the specific goal that must be perform by the system for the user; user goal technique identify all the users of the system and their goals for using the system.
The event decomposition is used to determine the event to which the system must respond.<span />
C. To make a punnet square, make a square and make a line through from bottom to top, and left to right. Then on top, put one of each letter (FF) on top of each square. Do the same with the other (ff). Then put each letter in the box that matches where the letters are. You will get Ff for each. Tell me if you need more help. Punnet squares can be confusing at first.
The photo is showing human karyotype. Haploid=n, diploid=2n. The picture shown 23 pair of chromosome which mean n=23. Therefore, diploid number of this individual is 46.
(Oxygenated non-saline) is in the missing spot