The song of the yellow warbler

Answer choices

1. A

   Too Strong7% picked this

   The core areas contain just enough food to sustain one yellow warbler

   The argument does not say yellow warblers who sing will find sufficient food, but rather that they won't face competition.

   7%
2. B

   Too Strong2% picked this

   Warblers are the only molting birds that lay claim to core areas of feeding

   Too Strong: the only Out of Scope: other molting birds Whether other molting birds lay claim to areas of feeding territories is not relevant to the argument.

   2%
3. C

   Correct84% picked this

   There are no birds other than yellow warblers that compete with yellow

   Why this is right

   This is a piece of the required ~OWE → ~CF assumption. In order for the absence of other warblers to imply no competition for food. It must be assumed that no other birds compete with yellow warblers for food.

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

   84%
4. D

   Weaken4% picked this

   Warblers often share their feeding areas with other kinds of birds, which often do not eat the same insects

   If warblers often share their feeding areas with other kinds of birds (even if sometimes they do not eat the same insects or seeds as warblers do). Warblers are more likely to face competition for food.

   4%
5. E

   Too Strong3% picked this

   The core areas of each feeding territory are the same size for

   Each area need not be exactly the same size.

   3%