This is because the GP120 protein
of the HIV virus that forms the ‘knob’ is
essential for the infection of CD4 cells
of the immune system by the virus. The glycoprotein is, therefore, a good
target for vaccines especially since the
molecule is highly conserved because most mutations in the region could be highly deleterious to the virus.
Answer:
The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.
Explanation:
Answer:
The correct answer is - reciprocators.
Explanation:
Most people are normally reciprocators who only cooperates only when they see others doing cooperating. People generally cooperates only if other people do the same or help in in favor of the same thing.
Lucia behavior is the opposite of the reciprocators as Lucia cooperates with others irrespective behavior of the people.
Thus, the correct answer is - reciprocators.
