Which of the following contributes to the electrochemical gradient that exists across the thylakoid membrane during photosynthesis?
A. The electron transport chain.
B. The splitting of water to produce H+ and oxygen in the thylakoid lumen.
C. The depletion of H+ in the stroma during NADPH production.
D. The pumping of H+ into the thylakoid lumen by electron transport proteins.
E. All of the choices are correct.
E. All of the choices are correct.
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The tough outer covering of the eye is referred to as the
A. pupil. B. retina. C. sclera. D. fovea. E. iris.
What term is used to indicate a relatively new characteristic, in an evolutionary sense?
a. homologous trait b. analogous trait c. cladistic trait d. ancestral trait e. derived trait
Microbial resistance resulting from mutation occurs because
A. bacterial genomes undergo mutation often. B. short generation times accumulate mutations in populations. C. bacterial genomes undergo mutation rapidly. D. mutations are passed between organisms. E. All of the choices are correct.
Felsenstein (1985 ) developed a method to plot the divergence that arises between sister species as they evolve farther and farther from their common ancestor
This method enables researchers to better evaluate cross-species correlations among traits. The resultant plot provides divergences that arise between pairs of sister species as they evolve away from a common ancestor, and are known as ________. [three words] Fill in the blank(s) with correct word