Which event occurs in body tissue blood?
a. In the plasma, HCO3- and H+ convert into CO2 and H2O.
b. Erythrocyte HCO3- enters the plasma.
c. Free H+ releases from hemoglobin.
d. CO2 binds to hemoglobin.1124
Answer: d. CO2 binds to hemoglobin.1124
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Which one of the following statements about evolution is incorrect?
A. Evolution of bacteria can be demonstrated in a laboratory by selecting for increases in various metabolic processes. B. Evolution led to the branches in the tree of life, but development of the organisms within a single branch has subsequently remained constant. C. Closely related species display a nested pattern of similarity. D. Organisms that are best able to reproduce contribute disproportionately to subsequent generations. E. Evolution can have its root in both genetic and environmental forces.
Herbivores belong to which group in a food web?
A. secondary consumers B. primary producers C. tertiary consumers D. primary consumers E. decomposers
In a large population on a Pacific island, a few individuals had a mutation that caused them to have different colored
eyes. After a hurricane, the population was reduced to only a few individuals, but some of those individuals had the rare eye color mutation. Now, after many generations, almost half of the population on this island has different colored eyes. This is an example of _____________________. Fill in the blank(s) with the appropriate word(s).
Two intermediates of the sterol biosynthesis pathway, isopentenyl diphosphate and dimethylallyl diphosphate, are used by archaea in the biosynthesis of ________.
A. nucleotides B. diacylglycerol C. isoprenoids D. hormones