Arabidopsis plants that have mutant AtSUC2 alleles accumulate sugar and starch in their mature leaves. What process might these plants be unable to carry out?
A. phloem loading
B. abscission
C. photosynthesis
D. guttation
Answer: A
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The disaccharide in the accompanying figure is ____
a. cellulose b. galactose c. maltose d. sucrose e. lactose
Species divergence due to mating behavior and sexual selection, as has been documented in the Hawaiian crickets, is termed ________. [two words]
Fill in the blank(s) with correct word
Sewage sludge, the solid that remains after aerobic decomposition, makes a useful fertilizer because
A. it contains significant energy in the form of methane. B. it has been treated to remove microbes and will not be a source of pathogens. C. it is rich in nitrogen, phosphorus, and potassium. D. it is rich in carbon and nitrogen.
Adaptation:
a. is a term that has been used in different ways by evolutionary biologists. b. helps organisms deal with both biotic and abiotic aspects of their environment. c. benefits an organism in its current environment. d. All of the above. e. None of the above.