10. According to the passage, starry flounder differ from most other species of flatfish in that starry flounder
are not basically bilaterally symmetric
do not become asymmetric until adulthood
do not all share the same asymmetry
have both eyes on the same side of the head
tend to cluster in only certain geographic regions For the following question, consider each of the choices separately and select all that apply
11. The author would be most likely to agree with which of the following statements about left-eyedness and right-eyedness in the starry flounder?
□A They are adaptive variations by the starry flounder to environmental differences.
□B They do not seem to give obvious selective advantages to the starry flounder.
□C They occur in different proportions in different locations.
12. According to the passage, a possible disadvantage associated with eye migration in flatfish is that the optic nerves can
adhere to one another
detach from the eyes
cross
stretch
twist
13. Which of the following best describes the organization of the passage as a whole?
A phenomenon is described and an interpretation presented and rejected.
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