Answer:D
Explanation: The answer is D because Archaebacteria are the only bacteria that defy the laws of nature and live in harsh/ tough environments.
Answer:
More info given below.
Explanation:
This attraction occurs as a result of static charge. You see an atom is referred to as the smallest particle of a substance; and when an atom gains or looses electrons it becomes unstable creating a difference in potential. However in this case rubbing induces friction which induces heat. This heat excites the atom to loose electrons creating a negative charge on the silk and a converse positive charge on the pencil.
D. In a regimen of two to four drugs
The Covalent bond formed by a condensation reaction between two amino acids, links the residues in peptides and proteins.
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