Answer:
B) Viruses are killing some of his B cells and becoming incorporated into the genomes of others.
Explanation:
Epstein-Barr virus causes infectious mononucleosis by following mechanism.
1) Epstein-Barr virus attaches to and infects epithelium of the throat where it replicates and causes pharyngitis.
2) Virions enter the lymphoid vessels and are carried to the lymph nodes. Some virions escape the lymphnode trap and are carried to the bloodstream.
3) Virions attach specifically to B lymphocytes and infect them, producing either latent infection or productive infection.
4)The infected B lymphocytes actively replicate and differentiate into cells producing random immunoglobulins.
5)T cells respond to infection and destroy the lymphocytes replicating EBV vitus.
6) Latently infected B lymphocytes become immortal. They are not attacked by T cells.
Answer:
mark me brainlist
Explanation:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
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1.) is a 2.) is probably B. and 3.) is most likely a
States enjoyed greater autonomy under the Articles, whereas the Constitution granted some powers to the states.
<h3>What is articles of confederation?</h3>
- The 13 founding states of the United States of America came to an agreement known as the Articles of Confederation and Perpetual Union, which functioned as the country's first system of governance.
- On November 15, 1777, the Second Continental Congress approved it following lengthy discussion and forwarded it to the states for ratification.
- In the Articles of Confederation, which served as the nation's first constitution, the confederacy of the former 13 colonies was referred to as "The United States of America."
- The 13 articles that made up the Articles of Confederation granted authority to a federal government headed by Congress.
- Following the United States' declaration of independence from Great Britain, the national government's functions were codified in the Articles of Confederation.
- The Continental Congress approved the Articles of Confederation on November 15, 1777.
- This text functioned as the first constitution of the United States.
- It lasted from March 1, 1781, until the current Constitution took effect in 1789.
Learn more about the articles of confederation here:
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Answer:
True
Explanation:
Meiosis is the kind of cell division that results in the production of daughter cells with each cell having half number of chromosomes as the parent cell. Meiosis is the cell division employed by reproductive cells to produce gametes/sex cells. Meiosis occurs in two stages i.e. Meiosis I and II. The chromosome number reduces by half in gametes in order to ensure that after fertilization of both male and female gamete, the resulting organism has the correct set of chromosomes. e.g diploid organism produces haploid gametes which fuses to produce a diploid organism again.
Mitosis is another type of cell division that results in identical daughter cells. They are identical in the sense that they possess the same number of chromosomes as the parent cell that divided. For example, a diploid cell undergoes mitosis to produce two diploid daughter cells.
