Which STI is associated with opportunistic diseases?
A. chlamydia
B. herpes
C. AIDS
D. genital warts
E. all of the above
Answer: C
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Which of the following statements regarding CD8 T cells is incorrect?
a. When activated, CD8 T cells in turn activate B cells. b. CD8 is also known as the CD8 T-cell co-receptor. c. CD8 binds to MHC molecules at a site distinct from that bound by the T-cell receptor. d. CD8 T cells kill pathogen-infected cells by inducing apoptosis. e. CD8 T cells are MHC class I-restricted.
The ________, a sheet of skeletal muscle that lies along the inferior border of the thoracic cavity, is active during breathing
A) diaphragm B) hilum C) mediastinum D) parenchyma
A body mass index (BMI) of ________ or higher is associated with discontinuing exercise.
A. 18 B. 20 C. 25 D. 30
A tag game in which students are safe when they are balanced on one body part describes a(n)
A) circuit training routine. B) fitness game. C) student leader routine. D) aerobic fitness routine.