Every winter, many individuals tragically die in their sleep due to faulty heaters that leak carbon monoxide (CO) during the night. How does CO poisoning lead to death?
A. CO binds more tightly to carbonic anhydrase than does carbon dioxide.
B. CO binds to oxygen, and the CO-oxygen complex cannot bind to hemoglobin.
C. CO coats the surfaces of the alveoli, preventing diffusion of oxygen into the blood.
D. CO binds more tightly to hemoglobin than does oxygen.
E. CO inhibits the chemosensitive neurons in the aortic and carotid bodies.
D. CO binds more tightly to hemoglobin than does oxygen.
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The opposite results obtained by scientists apparently doing the same experiments in investigating spontaneous generation
A. shows the importance of repeating experiments. B. shows the importance of exactly duplicating experimental conditions. C. led to further experiments that ultimately furthered knowledge. D. All of the choices are correct.
Eyes with single lenses that respond to light and darkness are found in many arthropods; these are the
A. compound eyes. B. ommatidia. C. apposition eyes. D. ocelli. E. superposition segments.
Which feature is used to distinguish modern humans?
What will be an ideal response?
Zygospores are used to resist harsh conditions.
Answer the following statement true (T) or false (F)