AIDS is caused by a human retrovirus that infects:
a. B lymphocytes
b. lymphocyte stem cells
c. CD4-positive T lymphocytes
d. CD8-positive T lymphocytes
c. CD4-positive T lymphocytes
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Write the correct abbreviation for abdominal hysterectomy:
What will be an ideal response?
Which serious lung infection causes the alveoli to fill up with fluid?
A) tuberculosis B) pneumoconiosis C) pneumonia D) pulmonary fibrosis
To help distribute feedback equally, having students observe peers is always effective
Indicate whether the statement is true or false
The majority of parents
A. are in support of sexuality education only at home. B. don't have an opinion about sexuality education in the schools. C. are in opposition to sexuality education in the schools. D. are in support of sexuality education in the schools.