Hey there
___________
The correct answer is:
Nitrogen is a key element in the formation of B. amino acids ,which are substances necessary to living organisms.
_______________
Hope this helps you
The answer would be B,
Hope this helps! :)
Hello there.
<span>The sales person ignored Lisa. He was helping an older customer.
Which sentence best combines the two sentences using a participial phrase?
</span>Participle phrase-<span> is a verbal ending in -ing or -ed
Based off that,</span><span>
Answer: </span><span>A. Lisa was ignored by the salesperson as he helped an older customer</span>
