Elephantiasis is caused by
A. blood flukes.
B. liver flukes.
C. filarial roundworms.
D. tapeworms.
E. flatworms.
Answer: C
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In mitochondria, exergonic redox reactions _____
A) are the source of energy driving prokaryotic ATP synthesis B) are directly coupled to substrate-level phosphorylation C) provide the energy that establishes the proton gradient D) reduce carbon atoms to carbon dioxide E) are coupled via phosphorylated intermediates to endergonic processes
Choose the observations supporting the hypothesis that the initiation of eye development in animals occurred only once.
_____ In some organisms, Pax6-related genes are associated with development of the forehead. _____ A large number of different organisms use Pax6-related genes in eye development. _____ The DNA sequence of Pax6-related genes in animals is uniformly similar. _____ The common ancestor of animals had a complex eye.
Laboratory simulations provide indirect evidence
that organic compounds such as __________ and __________ self-assemble spontaneously under conditions like those thought to have prevailed on the early Earth. Fill in the blank(s) with the appropriate word(s).
Although most autotrophic microorganisms fix carbon dioxide using the Calvin-Benson cycle, this pathway is absent in archaea.
Answer the following statement true (T) or false (F)