Add punctuation: Primary seborrhea a skin disorder known as a keratinization disorder a process whereby the dogs body produces a substance known as keratin
A: Primary seborrhea a skin disorder known as a keratinization disorder, a process whereby the dog's body produces a substance known as keratin.

Add punctuation: All of these buttons do the right thing ie what you would expect on all of the Linux distributions I have tried it on so far
A: All of these buttons do the right thing (ie what you would expect) on all of the Linux distributions I have tried it on so far.

Add punctuation: Additional comments on your order you can specify the last step of the ordering process there is therefore a special room reserved
A:
Additional comments on your order you can specify the last step of the ordering process, there is therefore a special room reserved.