PrepTest 60, Section 3, Question 23
A species in which mutations frequently occur will develop new evolutionary adaptations in each generation. Since species survive dramatic environmental changes only if they develop new evolutionary adaptations in each generation, a species in which mutations frequently occur will survive dramatic environmental changes.
A species in which mutations frequently occur will develop new evolutionary adaptations in each generation. Since species survive dramatic environmental changes only if they develop new evolutionary adaptations in each generation, a species in which mutations frequently occur will survive dramatic environmental changes.
A species in which mutations frequently occur will develop new evolutionary adaptations in each generation. Since species survive dramatic environmental changes only if they develop new evolutionary adaptations in each generation, a species in which mutations frequently occur will survive dramatic environmental changes.
A species in which mutations frequently occur will develop new evolutionary adaptations in each generation. Since species survive dramatic environmental changes only if they develop new evolutionary adaptations in each generation, a species in which mutations frequently occur will survive dramatic environmental changes.
The flawed pattern of reasoning in which one of the following is most closely parallel to that in the argument above?
In a stone wall that is properly built, every stone supports another stone. Since a wall's being sturdy depends upon its being properly built, only walls that are composed entirely of stones supporting other stones are sturdy.
A play that is performed before a different audience every time will never get the same reaction from any two audiences. Since no plays are performed before the same audience every time, no play ever gets the same reaction from any two audiences.
A person who is perfectly honest will tell the truth in every situation. Since in order to be a morally upright person one must tell the truth at all times, a perfectly honest person will also be a morally upright person.
An herb garden is productive only if the soil that it is planted in is well drained. Since soil that is well drained is good soil, an herb garden is not productive unless it is planted in good soil.
A diet that is healthful is well balanced. Since a well-balanced diet includes fruits and vegetables, one will not be healthy unless one eats fruits and vegetables.
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