The antibodies to the HIV virus may take up to three months to appear in the blood of the infected person.
Therefore, the second blood test is necessary three months after a person thinks that he/she has been exposed to HIV to check the presence of these antibodies and confirm whether the person is infected or not.
Answer:
Voluntary muscles or striated muscles are those which are in our control.
ex, biceps, triceps, upper part of oesophagus., tongue.
On the way, the involuntary or non striated muscles are those which are not in control.
Ex, full ice of blood capillaries.
<span>Cenozoic Era........................</span>
Answer:
i think its A but i'm not sure.
Im going to have to go with C. they pass through channels in the cell membrane
