Hey there!
The correct answer to your question is option B.
Nitrogen is essential to life because it is the molecule around which all the molecules of life are built, meaning it is the molecule that is most needed and is one of the most important ones.
Hope this helps you.
Have a great day!
The answer is B. It changes the shape of the protein. Hope it helps! :)
The tissue that connects bone to bone is called a ligament!
I hope this helps;)