1. which joiner shows a contrast between coordinate ideas?
nevertheless
consequently
neither . . nor
likewise

2.which joiner shows a result between coordinate ideas?
nor
yet
therefore
also

1. The joiner nevertheless shows a contrast between coordinate ideas. That word means however, which is used to show that something opposite is going to be said in the following words.
2. The joiner therefore shows a result between coordinate ideas. Something happens, and then you use the word therefore to show the results of such an event.