A membrane bound nucleus (or just a nucleus in general)
The nucleic acids that moves the code for protein synthesis from the nucleus to the ribosomes is : D. mRNA
This code is most commonly known as the Transcript, which is very important in DNA forming process
Hope this helps
I believe the inability to make saliva would affect digestion drastically. The first phase in the process of digestion comes with saliva - it breaks down some substances in your mouth, because it contains amylase which helps during this process. If it weren't for saliva, you probably wouldn't even be able to swallow food - and even if you did, it would be almost impossible to break it down in your body.