A
Cats have a greater physiological need for sleep than other animals.
B
Many other animals also spend much of their time sleeping yet have a strong, agile musculature.
C
Cats are able to sleep in apparently uncomfortable positions.
D
Cats derive ample exercise from frequent stretching.
E
Cats require strength and agility in order to be effective predators.
A
All human adaptations to past environments were based on the human brain and its associated mental capacities.
B
Human capacities that do not contribute to the biological success of the human species cannot be evaluated.
C
If something develops to serve a given function, the standard by which it must be judged is how well it serves that function.
D
Judgments that depend on individual preference or taste cannot be evaluated as true or false.
E
Anything that enhances the proliferation of a species is to be valued highly.
Letter to the Editor: Your article on effective cockroach control states that vexone is effective against only one of the more than 4,000 cockroach species that infest North America: the German cockroach. In actuality, vexone has been utilized effectively for almost a decade against all of the species that infest North America. In testing our product, Roach Ender, which contains vexone, we have conducted many well-documented studies that prove this fact.
Summary
The letter writer claims that vexone is effective against all cockroach species in North America.
Notable Valid Inferences
This is a MBF Except question. This means all the wrong answers cannot be logically inferred from the stimulus. The right answer can be logically inferred from the stimulus.
A valid logical inference from the stimulus is that either the Editor’s article or the letter writer is incorrect about vexone’s effectiveness against cockroaches in North America.
A
Vexone is effective against only two species of cockroach that infest North America.
This conflicts with the letter writer’s view. He believes vexone is effective against the more than 4,000 cockroach species in North America.
B
Not all of the major species of cockroach that infest North America can be controlled by Roach Ender.
This conflicts with the letter writer’s view. He believes Roach Ender is effective against all cockroach species in North America.
C
Every species of cockroach that infests North America can be controlled by vexone.
This does not conflict with the letter writer’s view. He believes vexone is effective against all cockroach species in North America.
D
The cockroach infestations that have been combated with vexone have not included all of the cockroach species that infest North America.
This conflicts with the letter writer’s view. He claims that many well-documented studies demonstrate that vexone is effective against all cockroach species in North America.
E
Roach Ender was tested against exactly 4,000 cockroach species that infest North America.
This conflicts with the letter writer’s view. The letter writer believes that studies show vexone is effective against all cockroach species in North America, of which there are more than 4,000.