The sightless eyes of animals that live in dark caves is an example of what kind of structure?
a. analogous structure
b. vestigial structure
c. homologous structure
d. convergent structure
b. vestigial structure
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At myelinated areas of the axon (i.e. between nodes of Ranvier), which of the following statements is true?
A. There is an increased number of voltage-gated sodium channels. B. There is increased resistance across the membrane. C. There is increased capacitance across the membrane. D. There is increased transport of potassium across the membrane.
Rods in the eye are used for
A. dim light vision B. bright color vision
Striated muscle has light and dark bands. The light bands are called ________, whereas the dark bands are called ________
A) Z lines; M lines B) H zones; M zones C) A bands; I bands D) I bands; A bands E) M lines; A bands
Similarity due to convergent evolution is called
A. analogy. B. homology. C. taxonomy. D. cladistics. E. phylogeny.