Researchers Hypothesize That the Hybrid Zone of Bullock's Orioles and Baltimore

Multiple Choice

Researchers hypothesize that the hybrid zone of Bullock's orioles and Baltimore orioles remains narrow because hybrids ____.

A) are routinely eliminated by natural selection within the hybrid zone
B) prefer the moist habitats of the Baltimore oriole
C) prefer hotter and drier habitats of the Bullock's oriole
D) are well adapted to both the dry habitats of the Bullock's oriole and to the moist habitats of the Baltimore oriole
E) are not well adapted to the dry habitats of the Bullock's oriole or to the moist habitats of the Baltimore oriole