BIOL 1020 UNIT 4 QUIZZES WITH COMPLETE
SOLUTIONS | NEW UPDATE 2025
The biological species concept would best be applied to - ANSWER Bengal
tigers
Lions and tigers can mate in captivity to produce viable offspring (ligers and tions,
depending on which species is the mother and which is the father). Ligers do not
occur in nature though, since lions and tigers do not have overlapping ranges in
nature. This is an example of the prezygotic species barrier - ANSWER Habitat
isolation
In addition, while liger females are fertile, liger males are sterile. This is a case of -
ANSWER reduced hybrid fertility
Another reason we consider lions and tigers to be discrete species is that they are
easily distinguishable. If I told you the image above was a lion, you would not
believe me, because you know what a lion looks like, and what a tiger looks like.
We are applying the - ANSWER Morphological species concept
Tigers once ranged all throughout eastern Asia (see map above). Their range has
been greatly reduced and fragmented, so now there are several subspecies of
tigers; Bengal tigers, Siberian tigers, Sumatran tigers and a few more. At present,
they are still recognized as subspecies of Panthera tigris because they can still
interbreed in captivity and produce fertile offspring, but in the distant future they
may become reproductively isolated by _____ speciation - ANSWER Allopatric
SOLUTIONS | NEW UPDATE 2025
The biological species concept would best be applied to - ANSWER Bengal
tigers
Lions and tigers can mate in captivity to produce viable offspring (ligers and tions,
depending on which species is the mother and which is the father). Ligers do not
occur in nature though, since lions and tigers do not have overlapping ranges in
nature. This is an example of the prezygotic species barrier - ANSWER Habitat
isolation
In addition, while liger females are fertile, liger males are sterile. This is a case of -
ANSWER reduced hybrid fertility
Another reason we consider lions and tigers to be discrete species is that they are
easily distinguishable. If I told you the image above was a lion, you would not
believe me, because you know what a lion looks like, and what a tiger looks like.
We are applying the - ANSWER Morphological species concept
Tigers once ranged all throughout eastern Asia (see map above). Their range has
been greatly reduced and fragmented, so now there are several subspecies of
tigers; Bengal tigers, Siberian tigers, Sumatran tigers and a few more. At present,
they are still recognized as subspecies of Panthera tigris because they can still
interbreed in captivity and produce fertile offspring, but in the distant future they
may become reproductively isolated by _____ speciation - ANSWER Allopatric
