Which statement is true about two reactions that are coupled?
A) One reaction will normally not occur without the other.
B) One is always exergonic and the other is always endergonic.
C) Only oxidation-reduction reactions can be coupled.
D) Coupled reactions are always driven by the ATP to ADP conversion.
A) One reaction will normally not occur without the other.
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As elevation increases, O2 ____
a. availability increases b. availability decreases c. availability remains constant d. levels increase, but there is none present above 20,000 feet e. levels decrease, until there is none present above 20,000 feet
Describe why many systematists adopt the principle of parsimony?
What will be an ideal response?
Isoniazid is a narrow-spectrum antibiotic that ________.
A. is one of the few drugs effective against Mycobacterium tuberculosis B. is not useful as a chemotherapeutic agent C. is one of the few drugs effective against systemic fungal infections D. None of the choices are correct.
The Florida panther, Puma concolor coryi, is one of the most threatened species on Earth, with only 80-00 individuals remaining. Their population is most threatened by humans, habitat loss, and their own poor health due to genetic diseases. Some conservationists want to introduce new individuals from Texas, the mountain lion, Puma concolor. Scientists are currently uncertain whether the Florida panther and the Texas mountain lion are the same or different subspecies.Many areas in Florida are set aside as preserved lands, especially in the Florida Everglades National Park, National Forests, and numerous state parks. However, these areas are fragmented and often bisected by large highways. One strategy to preserve biodiversity in Florida has been to create tunnels at intervals
underneath the highways. What functions do these tunnels serve? A. Minimize edge effects B. Create a single large reserve C. Provide movement corridors D. Create a flagship species E. Simulate island biogeography