Two species interbreed occasionally and produce vigorous,fertile hybrids.When the hybrids breed with each other or with either parent species,however,the offspring are feeble or sterile.These species are separated by
A) gametic isolation.
B) reduced hybrid viability.
C) reduced hybrid fertility.
D) hybrid breakdown.
Correct Answer:
Verified
Q14: Which butterfly has changed gradually but significantly
Q15: Which of the following would a biologist
Q16: Two bird species overlap in a hybrid
Q17: Two species that occasionally mate and produce
Q18: Frequently,a group of related species will each
Q20: One of the finest available sequences of
Q21: Ancestral diploid wheat species had 2n =
Q22: Speciation without geographic isolation is called speciation.
A)sympatric
B)incomplete
C)diversifying
D)allopatric
Q23: Sympatric speciation commonly occurs through _ in
Q24: Most polyploid species arise from
A)a single tetraploid
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents