Researchers put two electrodes

Answer choices

1. A

   Too Speculative0% picked this

   In the wild, dolphins sometimes encounter strong

   The information we're given only concerns how the dolphins reacted during the experiment. We're not expected to speculate about how a dolphin developed this ability. This answer might seem reasonable if you're aware that animals' adaptations often correspond to something in their environment. But not everyone is married to an environmental science teacher like I am, or has learned that some other way.

   0%
2. B

   Correct88% picked this

   Vibrissal crypts enable dolphins to sense

   Why this is right

   The way the dolphin reacted normally compared to how they reacted when these organs were covered supports the idea that the organs allow dolphins to sense these fields.

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

   88%
3. C

   Unsupported Causality1% picked this

   Dolphins do not instinctually avoid electric fields, but they can be trained

   This answer seems to suggest that by activating the electric field the researchers trained the dolphin to avoid it. But the information we're given doesn't provide any evidence of that. There's no support for the idea that a dolphin wouldn't normally avoid an electric field.

   1%
4. D

   Out of Scope9% picked this

   Electric fields interfere with the normal functioning of dolphins’

   We aren't told anything about the "normal functioning" of the vibrissal crypts. It's entirely possible that their normal function is to detect electric fields. Or maybe they have some other purpose, but while functioning normally they also allow dolphins to detect electric fields.

   9%
5. E

   Contradicted1% picked this

   Under normal circumstances, dolphins are unable to sense

   The information we're given indicates that dolphins can normally detect electric fields.

   1%