if it's a thunderstorm, that means there's lightning, not necessarily a tornado. You're thinking of a tornado. Lightning may strike trees, water, and tall objects, so it's best to stay away from them. The answer is C
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.
The prokaryotic cell does not have a nucleus but instead they have a chromosome.<span />
<h2>Answer: </h2>
Yes. Smoking can increase the risk of age related macular degenartion, and <u>cataracts.</u>
Smoking has recently became a norm within the society, which has been given numerous faces. But at the same time is killing inner you. Smoking can also lead to loss of vision of even a person's blindness. Not only this but habit of smoking also increases the possibility of getting diabetic and the once who are already having it and yet smokes, are being effected double.