Answer:
Chitin
Explanation:
Chitin is the polysaccharide that makes up the outer exoskeleton of many insects. It is a fibrous polymer, that is made up of chains of modified glucose molecules. It is comparable in structure to cellulose, which makes up the plant cell wall. In function, it is more similar to keratin or collagen, although these are proteins.
Chitin is exclusively found in the arthropods, mollusks and fungi. It plays an important protective and structural role, giving organisms their tough outer exoskeleton or strong cell wall in the case of fungi.
The answer to this question is:
Who reviews articles for peer-reviewed journals"Peer-reviewed journals are experts that write articles and when other experts review the same thing to make sure it has the best quality"
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Johnbryant596
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Answer:
Contain a repair mechanism inherent in their biochemistry (repair enzymes)
Explanation:
When cells are exposed to sublethal doses of ionizing radiation, repair and recovery may occur because cells: Contain a repair mechanism inherent in their biochemistry (repair enzymes).
The correct answer is natural selection. C is the answer!
Bacteria has a stronger resistance that usually produces even more resistant bacteria, and the cycle just repeats itself, making more and more resistant bacteria. This process is called Natural Selection.
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-Chris
Answer:
DNA samples might be planted and it is possible to synthesize a nucleotide sequence to incriminate a person
Explanation:
In a criminal case, DNA evidence may be considered to be fraudulent because DNA samples might be planted around the crime scene. Moreover, specific genomic profiles of an individual stored in the database can be used to manufacture a DNA sample matching this profile without the necessity to obtain tissues of the person. In consequence, DNA evidence may be considered to be imperfect. Nonetheless, it is important to highlight that DNA evidence is one of the most important modern advances used during criminal trials, and it has proven to be a very useful (and effective) tool available in law enforcement.
