Where do plants get most of their mass?
A) from nitrogen in the atmosphere
B) from carbon dioxide in the atmosphere
C) from water, as van Helmont predicted
D) from organic molecules taken up from the soil
Answer: B
Biology & Microbiology
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All protists have cell walls
A. true B. false
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Which of the following diseases is NOT caused by a
flagellated protist? a. malaria b. African sleeping sickness c. Chagas disease d. vaginal trichomoniasis e. intestinal giardiasis
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Which of the following is a genetic disorder in which a person bleeds excessively because of a faulty gene for a clotting factor?
A) B blood type B) anemia C) hemophilia D) color blindness
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A(n) ________ produces a rapid, automatic motor response to a stimulus.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology