GRE Text Completion Question 764
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Source: Red
The chances that a species will (i) _____ are reduced if any vital function is restricted to a single kind of organ; (ii) ______ by itself possesses an enormous survival advantage.
| Blank(i) | Blank(ii) |
|---|---|
| A persist | D size |
| B expire | E redundancy |
| C degenerate | F symmetry |