Answer:
HIV destroys helper T cells
Explanation:
The evading viruses destroys helper T cells or the CD4+ thus the body can no longer stop some infections. The secondary infections also called opportunistic infections are rampant with people who have AIDS. This is because helper T cells help fight against most infections in the body.
Yes because he is only observing the height of the plants and he only changes one variable
The answer in true because it can drop in temperature
An alternation of generations for plants include a haploid gametophyte and a diploid sporophyte.