Which of the following is true of adaptive immunity?
A. It is present at birth.
B. Previous encounters with the foreign substance does not change the response.
C. The second response is faster and stronger than the first response.
D. Responses are general, not specific.
C
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This figure illustrates bone growth in length at the epiphyseal plate. Zone "C" represents
A. zone of hypertrophy. B. zone of resting cartilage. C. bone tissue of the diaphysis. D. zone of proliferation. E. zone of calcification.
Compare bradycardia with tachycardia
A) Bradycardia is an abnormally weak ventricular contraction and tachycardia is an abnormally strong ventricular contraction. B) Bradycardia is an abnormally strong ventricular contraction and tachycardia is an abnormally weak ventricular contraction. C) Bradycardia is a heart rate above 100 beats per minute and tachycardia is a heart rate below 60 beats per minute. D) Bradycardia is a heart rate below 80 beats per minute and tachycardia is a heart rate above 120 beats per minute. E) Bradycardia is a heart rate below 60 beats per minute and tachycardia is a heart rate above 100 beats per minute.
What particle is formed when an acid loses a proton (H+)?
A. conjugate base B. buffer C. conjugate acid D. salt
The male reproductive system is responsible for ________
A) the production of sex hormones B) the production of sex hormones, the production and storage of sperm, and transportation of sperm to the female reproductive tract during intercourse C) the production of sex hormones as well as the production and storage of sperm D) the production and storage of sperm as well as transportation of sperm to the female reproductive tract during intercourse