Histamine, serotonin, and bradykinin are all
A. mediators that increase chemotaxis.
B. mediators of T-cell activity.
C. fever inducers.
D. mediators of B-cell activity.
E. vasoactive mediators.
Answer: E
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The fungal group that is most closely related to ancestral fungi are the
A. Zygomycota. B. Chytridomycota. C. Ascomycota. D. Basidomycota.
Intervertebral discs are made of
a. fibrocartilage. b. elastic cartilage. c. hyaline cartilage. d. tendon. e. ligament.
Pregnancy is most likely to occur in a woman with a 28-day cycle if sexual intercourse occurs on day ____.
A. 5 B. 10 C. 15 D. 20
The Food Guide Pyramid suggests that most Americans should increase their intake of ____ and reduce their intake of ___.
A. vegetables; dairy products B. water; cereals C. vegetables; fats D. meats; fruits