1. dcba
2. acbd
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BLACKSHARK
Answer: it represents an average mass of all isotopes
Explanation:
i just took the test
Answer:
A
Explanation:
Quaternary structure of proteins is composed of two or more polypeptide chains. Insulin has two; one alpha and one beta chain. The two chains are joined together by disulfide bonds at two points (at cysteines). Other examples of quaternary proteins structures are DNA polymerase and hemoglobin.
Your answer would be Solar, Hybrid and wind. Hope this helps!