Answer:
B. Biological Evolution
Explanation:
The biological evolution or evolution is a process by which organisms changes over time and the heritable traits are passed on to the successive generations.
The traits which increase the survival rate or reproductive fitness become permanent in the population when they are passed on to the generations.
In the given question, all the organisms possess DNA, use energy and perform metabolic functions is the result of the transfer of the traits as these characteristic feature allows the cells to survive and thus allows the organism to survive in the different conditions.
Thus, Option-B is the correct answer.
<span>B. to orbit the earth for two weeks</span>
Scabs and Clots to help stop cuts and scrapes from bleeding.
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:
What we eat matters. The food choices we make every day have a big effect on the environment. The good news is that even small changes in what we buy and eat can add up to real environmental benefits, including fewer toxic chemicals, reduced global warming emissions, and preservation of our ocean resources.
Explanation:
