Human society in its current form is unsustainable because
A. diverting agricultural yield for feeding livestock supplies enough protein to fulfill a community's dietary needs.
B. recycling has eliminated the need for the mining of some mineral resources.
C. renewable energy sources are consuming land and resources more quickly than they can be replenished.
D. freshwater is being effectively preserved through conservation.
E. important natural resources are being consumed more quickly than they can be replenished.
Answer: E
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Traditional and molecular phylogenies disagree on which one of the following issues?
A. whether or not the Eumetazoa are monophyletic. B. whether the Bilateria and Radiata split early into separate monophyletic clades. C. whether the split between Parazoa and Eumetazoa occurred at a very early stage in animal evolution. D. whether Echinodermata and Chordata are both deuterostomes. E. whether the appearance and type of coelom is important in interpreting phylogeny.
Which of the following marks the transition from
glycolysis to the Krebs cycle? a. acetyl-CoA formation b. conversion of PGAL to PGA c. regeneration of reduced NAD+ d. oxidative phosphorylation e. substrate-level phosphorylation
Common lipids for energy storage are:
A. steroids. B. cholesterols. C. triglycerides. D. waxes. E. phospholipids.
Which of the following is/are TRUE of cholera?
a. It is a diarrheal disease. b. It is both foodborne and waterborne. c. It is largely restricted to the developing world. d. All of the above are true of cholera.