Answer:
D. they can create deep valleys
Explanation:
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Organisms need nutrients to b. carry out essential life functions
Answer:
This process is known as: <em><u>convergent evolution</u></em>
Explanation:
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Hydrophobic and hydrophilic bond/interactions are common bond that forms long chains of proteins.
Some complex forms of proteins are made of subunits in which molecules bond together to form a larger unit. A good example is the blood protein hemoglobin. Hemoglobin consists of protein subunits known as the globin molecules. These subunits are folded chains of a large number of different amino acids which are known as polypeptides.