Specially bred aquarium fish with brilliant coloration and unusual body shapes may be popular with connoisseurs, but they are inferior to ordinary fish. Hampered by their elaborate tails or strangely shaped fins, the specially bred fish cannot reach food as quickly as can the ordinary fish that compete with them for food, and so they are often underfed. Also, they do not breed true; most offspring of the specially bred fish lack the elaborate tails and brilliant coloration of their parents.
Specially bred aquarium fish with bright colors and unusual shapes may be popular with collectors, but they are inferior to ordinary fish. Their fancy tails and strangely shaped fins make it harder for them to get food as quickly as ordinary fish, so they are often underfed. Also, their offspring usually don’t have the same fancy tails or bright colors as their parents.
In some cases, an animal’s aesthetic appeal may lead to physical disadvantages.
Since many specially bred aquarium fish do not pass their traits to their offspring, their value might diminish overtime for those collectors who hope to breed them.
The fancy tails and strangely shaped fins of specially bred aquarium fish allow them to be outcompeted for food by ordinary fish, which tend not to have fancy tails and strangely shaped fins.
Which one of the following is most strongly supported by the information above?
Specially bred aquarium fish must receive special care if they are to survive.
Unsupported. Specially bred aquarium fish may often be underfed, but we do not know that this means they will not survive. Perhaps they are underfed but are still able to survive without any special care.
Connoisseurs are not interested in dull-colored, simply shaped fish.
Unsupported. Specially bred aquarium fish may be popular with connoisseurs, but this does not mean that those connoisseurs are not interested in dull-colored, simply shaped fish.
Most specially bred aquarium fish are purchased by connoisseurs.
Unsupported. Specially bred aquarium fish may be popular with connoisseurs, but we do not know whether most specially bred aquarium fish are purchased by connoisseurs.
Ordinary fish tend not to have elaborate tails or strangely shaped fins.
Strongly supported. The elaborate tails and strangely shaped fins of specially bred aquarium fish are the reason that they are outcompeted for food by ordinary fish. Thus, ordinary fish must tend not to have elaborate tails or strangely shaped fins.
Strangely shaped fins and elaborate tails interfere with a fish's ability to reproduce.
Unsupported. Strangely shaped fins and elaborate tails interfere with specially bred aquarium fish’s ability to get food quickly. We do not know that these things interfere with their ability to reproduce.
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