Your friend is having difficulty keeping track of the energy flow from glucose through glycolysis, the Krebs cycle, and electron transport. Your best advice would be to
A. follow the protons.
B. follow NAD+ production.
C. follow the electrons.
D. follow ATP production.
Answer: C
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The pellicle of protozoa is most directly involved in:
a. feeding b. information storage c. locomotion d. structure e. water removal
Chytridiomycetes produce enzymes that digest cellulose, chitin, and similar molecules. These fungi are contributing to the decline of amphibians worldwide through what mechanism?
A. by digesting cellulose in the cell wall of the frog's cells B. by digesting chitin in the cell wall of the frog's cells C. by infecting their lungs D. by killing their eggs in the water E. by digesting keratin in the frog's skin
Short hair (L) is dominant to long hair (l). If a shorthaired
animal of unknown origin is crossed with a long-haired animal and they produce one long-haired and one short-haired offspring, this indicates that a. the short-haired animal is pure-breeding. b. the short-haired animal is not pure-breeding. c. the long-haired animal is not pure-breeding. d. the long-haired animal is pure-breeding. e. none of these can be determined with two offspring.
All animals with tissues have
A) three germ layers. B) radial symmetry. C) bilateral symmetry. D) symmetrical bodies. E) two germ layers.