Answer:
The fewer number of T cells a person has, the more chances to be affected by an opportunistic infection. When the number of T cells reaches 200 cells/µl, the person is at risk of being infected by other infections.
Explanation:
The whole immune system of a person who is infected with HIV infection seems to be severely affected. When the person is not treated or the disease is in a very advanced stage, the depletion of the T- cells turns to be very sharped, especially CD4+ T cells. At this point, the immune system can not resist the attack of other microorganisms. The <em>lower is the number of CD4+ T Cells, the higher possibility the person has to be attacked by opportunistic infections. </em>
Classically, it has been suggested that opportunistic infections appear after the CD4 + T lymphocytes reach very low levels, such as 200 cells/µl. The number of circulating T cells can be used as an indicator and a measure of global "immune competence", and the previously mentioned amount of CD4 + T cells is an accepted universal reference used to predict the risk of having one of these opportunistic infections.
Answer:
The second one is not true
'(Minerals can be composed of more than one element)'
Explanation:
have a good day/night :)
Warmer oceans would mean less dissolved CO2 as well as other gases such as oxygen in the global ocean. Lower CO2 would result in a decrease in photosynthesis of autotrophs living in the oceans.
Each of pollan's chapters focuses on one particular plant and pollan suggests that each plant satisfies a specific human desire. The potato satisfies our desire for control – even more so now that we control its genes.
Though people might consider potatoes ordinary everyday fare, history demonstrates how crucial this vegetable is to humankind. Prior to the invention of the potato, conditions were challenging; many people, particularly in northern European nations, suffered from starvation and famine.
Malnutrition and starvation were eradicated in the countries that embraced the potato, and as a result, they grew stronger and more powerful. It is even conceivable that the potato spread resulted in a transfer of power from southern European nations to northern ones.
To learn more about pollan's chapters click here
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