58. In cases where members of two species produce an offspringbut the offspring is sterile, the type of reproductive barrier isknown as which of the following?
a) behavioralisolation            Â
b) temporal isolation             Â
c) reduced hybrid fertility
d) reduced hybrid viability     Â
e) hybrid breakdown
59. In cases where members of two species hybridize but theoffspring are weak and unable to compete with non-hybrids, the typeof reproductive barrier is known as which of the following?
a) behavioralisolation            Â
b) temporal isolation             Â
c) reduced hybrid fertility
d) reduced hybrid viability     Â
e) hybrid breakdown
60. Female birds typically observe the color pattern andbehavior of male birds prior to approaching them to determine theirspecies (prior to assessing them as a potential as a mate). Thisinitial inspection prevents them from hybridizing and is referredto as which of the following?
a) behavioralisolation            Â
b) temporal isolation             Â
c) reduced hybrid fertility
d) reduced hybrid viability     Â
e) hybrid breakdown
