<span>A retrovirus is anything of a group of RNA viruses that insert a DNA copy of their genome into the host cell to replicate.
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Answer:
A monosaccharide is the most basic form of sugar( carbohydrates) which is formed by the the combination of glycosidic bonds to form larger carbohydrates.
An oligiosaccharide is one which has only 20 monosaccharide in it. A monosaccharide is a type of monomer which can combine together to form a polymer.
The monosaccharides combine to each other by the help of glycosidic bonds.
Gray matter consists of the <u>unmyelinated axons</u> of neurons.
<u>Explanation:</u>
The outer layer of the brain consists of the grey matter and white matter. The grey matter gets its name by the pinkish grey colour obtained by the greyish colour of the neurons and the red colour from the capillaries.
The grey matter consists of the dentrites, axons and cell bodies and this is essential for memory, attention and learning.
The unmyelinated axons are not covered by the fat protein myelin and these axons carry signals.They are the ones to help the processing of information in the brain.
Acquired specific immunity involves the response of B and T lymphocytes (Option B).
<h3>What are B and T lymphocytes?</h3>
B and T lymphocytes are specialized cells of the immune system that trigger immune responses mediated by antibodies.
Antibodies are specific molecules that bind antigens present in pathogens in order to trigger immune responses that allow to destroy them.
In conclusion, Acquired specific immunity involves the response of B and T lymphocytes (Option B).
Learn more about B and T lymphocytes here:
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The diploid chromosome number is double the haploid chromosome number. So if the haploid number is 14, the diploid number is 28.