One of the disadvantages of the C4 pathway is that it requires
A. more light.
B. more NADPH.
C. a much higher temperature.
D. more O2.
E. more ATP.
Answer: E
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Refer to the paragraph on dark-eyed junco birds. The UCSD campus male junco population tails were, on average, 36% white, whereas the tails of males from nearby mountain populations averaged 40—45% white
A) mutations in the UCSD population B) sexual selection C) gene flow between populations D) a genetic bottleneck E) a founder effect
Energy is defined as
A. heat. B. the capacity to do work. C. change. D. movement.
A previously unknown fungus, which causes lethargy and anemia, has been found in the lungs and circulatory systems of infected cows. How should this fungal disease be classified?
a. superficial mycosis b. opportunistic mycosis c. systematic mycosis d. cutaneous mycosis
While looking under a microscope, you see two neighboring daughter cells. One of the cells contains three chromosomes, and the other contains five. The parent cell normally contains four chromosomes. What could be the reason for the different number of
chromosomes in the cells? A) Replication of DNA did not occur properly. B) The nuclear envelope did not dissolve, so mitosis could not occur at all. C) The division of sister chromatids of one chromosome did not occur properly during mitosis. D) The division of homologous chromosomes during meiosis II did not occur properly.