Question

on isle royale, how many wolves have a spinal deformity?
about 1 out of every 10 wolves
about 1 out of every 3 wolves
about 1 out of every 30 wolves
about 1 out of every 100 wolves

Explanation:

Based on general knowledge about Isle Royale wolves' spinal - deformity prevalence.

Answer:

about 1 out of every 10 wolves