S
Sarah C
Guest
A. a strain of houseflies resistant to insecticides emerges
B. squirrels separated by a river are found to be unable to interbreed
C. a son is born with a portion of his right index finger missing, the same portion severed from his father's hand in an accident
D. a strain of houseflies resistant to insecticides emerges; and squirrels separated by a river are found to be unable to interbreed
E. a strain of houseflies resistant to insecticides emerges; squirrels separated by a river are found to be unable to interbreed; and a son is born with a portion of his right index finger missing, the same portion cut off from his father's hand in an accident
B. squirrels separated by a river are found to be unable to interbreed
C. a son is born with a portion of his right index finger missing, the same portion severed from his father's hand in an accident
D. a strain of houseflies resistant to insecticides emerges; and squirrels separated by a river are found to be unable to interbreed
E. a strain of houseflies resistant to insecticides emerges; squirrels separated by a river are found to be unable to interbreed; and a son is born with a portion of his right index finger missing, the same portion cut off from his father's hand in an accident