The correct answer for this question would be A) Nnew = Nold.
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<span>All of their skulls were fairly long with sharp teeth.</span>
This can be caused by over grazing from the livestock or even wild animals such as rabbits. Rabbits are known to breed very quickly and can destroy an ecosystem with their sheer numbers.
Pork and beef insulins are similar to human insulin, differing only in one or a few amino acids. However, even a slight difference is enough to elicit an allergic response in some people. To overcome this problem, researchers looked for ways to make insulin that would more closely resemble human insulin.