questions with pictures.

[rama777]

So for the first picture. I think those are the injectors right? Located on the vavle cover? Well the lines that run to each one are intact until the last one. There appears no line running from the very last injector. What's up with that??? The next photo is just showing the fuel system for any comments...
The last picture is showing a hose that doesn't connect to anything. It's just open. Is that normal? Maybe just part of the emissions? Thanks for looking.