Question

refer to the table showing four traits for five different hypothetical pairs of salamanders. species pair hybrid fitness dispersal rate (meters/day) size (grams) coloration a and b high 0.8 46 dark c and d moderate 1.1 23 light e and f high 1.9 60 dark g and h moderate 0.7 29 light i and j low 0.5 34 light all other things being equal, which species pair would likely form the most narrow hybrid zone? a and b c and d e and f g and h i and j

Explanation:

Hybrid zones are narrower when hybrid fitness is low as it reduces the spread of hybrids. Species pair I and J have the lowest hybrid fitness among the given pairs, which would likely limit the extent of the hybrid zone.

Answer:

I and J