A child has a mild fever and a macular rash primarily on the torso. No lesions are evident in the mouth, and the child has not complained of pain. Which of the following diseases might the child have?
A. hand-foot-and-mouth disease
B. three-day measles
C. red measles
D. dengue fever
E. Rocky Mountain spotted fever
Answer: B
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Which of the following statements about isotopes in living systems is false? a. Radiation can be used to create visual images
b. Living organisms can avoid taking up a radioactive isotope but still absorb the normal isotope of the same element. c. Radioactive sugar is used to measure rates of cell activity. d. Radioisotopes can be used as tracers to follow the movement of an element through a living system.
Gastrulation produces
a. hollow balls of cells. b. embryos with germ layers. c. solid balls of cells. d. maternal messages. e. yolk.
A Y-shaped protein that proliferates in response to a specific antigen and recognizes these antigens is a(n)
A. interferon. B. antibody. C. complement. D. phagocyte. E. B cell.
Please match the specific immune response phase with the statements that most accurately describe them to test your understanding of the overall phases in a specific immune response.
Required for activation of T cells A) Antigen-Independent Development B) Antigen Contract C) Humoral Immunity D) Cell-Mediated Immunity E) Antigen Presentation