Specially bred aquarium fish

Answer choices

1. A

   Too Strong: must receive care9% picked this

   Specially bred aquarium fish must receive special care if they are

   Can we support this super extreme claim that, "If specially bred aquarium fish don't receive special care, they all die"? Heavens, no. The biggest threat to survival we hear about is that "they are often underfed". That's not all of them and it's not even necessarily lethal to be underfed.

   9%
2. B

   Out of Scope: not-interested One-Claim Support1% picked this

   Connoisseurs are not interested in dull-colored, simply

   If we say that "chocolate donuts are popular with 3rd graders", can we infer that "3rd graders are not interested in plain powdered donuts"? Of course not. Just because we know that these exotic fish are popular with connoisseurs doesn't mean that they are not interested in all other fish. This answer would only be pulling support from the very first claim, and it's very rare for the correct answer to only be supported by one claim.

   1%
3. C

   Too Strong: most1% picked this

   Most specially bred aquarium fish are purchased

   We have no information at all about the demographics of who is buying these exotic fish. We're told they are popular with connoisseurs, but they might also be popular with regular people (and there are far more regular people than fish connoisseurs). We have no evidence for the idea that more than 50% of the exotic fish that get purchased are sold to connoisseurs.

   1%
4. D

   Correct86% picked this

   Ordinary fish tend not to have elaborate tails or strangely

   Why this is right

   We heard that the exotic fish are hampered by their elaborate tails and strangely shaped fins, and so the ordinary fish out-race the exotic ones to a source of food. If ordinary fish also had elaborate tails and strange fins, then how would they be reliably winning this race? Since the funky tails/fins are identified as the Causal Difference-Maker that makes exotic fish slower than ordinary fish, the ordinary fish must have tails / fins that are different from the ones the exotic fish have.

   Skill tested: Most Supported · how this choice captures the argument's function is the move to repeat next time.

   86%
5. E

   Unsupported Causal Relationship3% picked this

   Strangely shaped fins and elaborate tails interfere with a fish’s ability

   We learned two things about exotic fish 1. their weird fins/tails make them slower in a race to food 2. their offspring often don't have the same exotic traits This answer choice is trying to causally connect those two things, but the passage did not. The passage connected them with the word "Also", not some causal connector like "Because of this, due to this, this results in, etc." Also, we never really heard that an exotic fish has any inability to reproduce. They're able to have babies, so they're able to reproduce just fine. The babies just don't have all the same exotic traits.

   3%