The rising acidity of the oceans threatens coral reefs by making it harder for corals to build their skeletons. A new study identifies the details of how ocean acidification affects coral skeletons, allowing scientists to predict more precisely where corals will be more vulnerable.
Answer:
bacteria go through fermentation process and produce proinsulin then connecting sequence between A and B chain spliced an enzyme and the resulting insulin is purified
1.) is caused by high temperatures.
It says it in the very first sentence. That it happens at high temperatures.
Hope this helps.
