If an athlete is burning glucose only, what is the ratio of oxygen consumed to carbon dioxide that will be produced?
C6H12O6 + 6O2 ? 6CO2 + 6H2O
A. 1:1
B. 1:6
C. 2:1
D. 1:2
E. 6:1
A. 1:1
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Male peacocks have tail feathers that make up about 60% of their body length. During the mating season they shake these feathers in front of females
Longer feathers produce a larger volume of rustling sound for a given shaking rate, but they are also heavier, and thus require more energy to shake at a given rate than shorter feathers. This suggests that ______________. A. selective pressures will continue selection for longer and longer peacock tails B. selective pressures will always result in shorter peacock tails to reduce the energetic cost of shaking C. there are selective pressures against too long or too short of a tail, which results in the variable tail lengths D. tail length is completely random because there are selective pressures both for and against longer tails
Seedless vascular plants most likely evolved
directly from
a. bryophytes. b. angiosperms. c. ferns. d. gymnosperms. e. green algae
A confidence interval can be constructed for which of the following population parameters?
A. Population standard deviation B. Population variance C. Population mean D. All of the answers are correct.
Lagging strand synthesis in eukaryotes involves Okazaki fragments that are shorter than those in bacterial replication.
Answer the following statement true (T) or false (F)