because different scientists have different theories or explainatons on how the universe came into being so that's why the origin of the universe is still a question
hope this helps
Answer:
The correct answer is D. A gram-negative cell wall consists of a thin layer of peptidoglycan surrounded by an outer membrane containing lipopolysaccharides.
Explanation:
Gram-negative bacteria are bacteria that do not retain the gentian violet dye during the Gram staining protocol.
During the Gram staining process, a contrast dye, usually safranin, is added after gentian violet, causing the Gram negative bacteria to stain pink or red. The contrast dye thus allows the visualization of Gram-negative bacteria which, because they have a thinner layer of peptidoglycans, cannot retain the gentian violet dye.
Its main feature is an endotoxin called lipopolysaccharide that causes pathogenicity and is responsible for its virulence.
The answer is; They stabilize protein structures and, in addition, the weak interactions allow for reversibility.
They allow protein to be easily folded and unfolded without expending too much energy. An example is their significance in maintaining the alpha helices and beta sheets of proteins, and allowing for DNA to be easily unzipped for biochemical processes such as replication or duplication.
