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1. |
If a guppy species found in a stream is placed in a lake, its colour will evolve rapidly from colourful to drab over as few as 10 generations because of the: |
A. | Lack of food. |
B. | Presence of additional predators in the lake. |
C. | Temperature of the air. |
D. | Taste of the water. |
Answer» C. Temperature of the air. | |