Human infestation with Taenia saginata results from ingesting ________ in undercooked intermediate host
A) scolex
B) cysticerci
C) proglottids
D) eggs
E) cysts
B
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For the ten days following ovulation in a non-pregnant menstrual cycle, the main source of progesterone is the _____
A) adrenal cortex B) anterior pituitary C) corpus luteum D) developing follicle E) placenta
Antiangiogenic drugs cause cytotoxic T cells to attack tumor cells.
Answer the following statement true (T) or false (F)
The mechanism of evolution proposed by Charles Darwin in The Origin of Species is
A) acclimatization. B) natural selection. C) acquired inheritance. D) adaptation.
The ratio between the uptake of carbon dioxide by photosynthesis and the release of carbon dioxide by respiration is approximately
A. 0.5 (i.e., half as much carbon dioxide is taken up by photosynthesis as is released by respiration). B. 5 (i.e., five times as much carbon dioxide is taken up by photosynthesis as is released by respiration). C. 0.1 (i.e., one-tenth as much carbon dioxide is taken up by photosynthesis as is released by respiration). D. 2 (i.e., twice as much carbon dioxide is taken up by photosynthesis as is released by respiration). E. 1 (i.e., about the same).