Which of the following statements is true about the leukocytes in the blood?
A. Leukocytes impair the body's ability to ward off infections and other harmful conditions.
B. Leukocytes invade HIV and kill all strains of retroviruses.
C. Leukocytes play major roles in defending the body against invading organisms and mutant cells.
D. Platelets are sometimes called leukocytes.
Answer: C
You might also like to view...
Piaget believed that children from age__________ fall into the __________ stage.
A. 5 to 7; preoperational B. 2 to 7; concrete operational C. 5 to 7; concrete operational D. 2 to 7; preoperational
Gerianna has been recently diagnosed with bipolar disorder. What type of drug is her psychiatrist most likely to try first in her treatment?
a. Paxil b. Wellbutrin c. Prozac d. Divalproex
Melissa's therapist encourages her to interpret her emotional and physical tension as "normal anxiety" and to redirect her attention from herself to others in social situations. The therapist is using which behavioral treatment?
a. exposure therapy b. systematic desensitization c. modeling d. cognitive restructuring
According to self-determination theory, people need to feel ____
a. ?competent, autonomous, and related b. ?safe, happy, and productive c. ?fulfilled, respected, and loved d. ?Important, influential, and safe