developing a method for predicting whether crusher claws in lobsters will appear on the left or right side
explaining differences between lobsters crusher claws and cutter claws
discussing a possible explanation for the way bilateral asymmetry is determined in lobsters
summarizing the stages of development of the lobster
22. Each of the following statements about the development of a lobsters crusher claw is supported by information in the passage EXCEPT:
It can be stopped on one side and begun on the other after the juvenile sixth stage.
It occurs gradually over a number of stages.
It is initially apparent in the juvenile sixth stage.
It can occur even when a prospective crusher claw is removed in the juvenile sixth stage.
It is less likely in the absence of a manipulatable environment.
23. Which of the following experimental results, if observed, would most clearly contradict the findings of Victor Emmel?
A left cutterlike claw is removed in the fifth stage and a crusher claw develops on the right side.
A left cutterlike claw is removed in the fourth stage and a crusher claw develops on the left side.
A left cutterlike claw is removed in the sixth stage and a crusher claw develops on the right side.
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