Match the reproductive barrier with its example.
Two species of snails are unable to mate because their genital openings don't align.
The hybrid offspring of a horse and a donkey is a mule. Mules are sterile.
Two fly species live in the same geographic area, but the apply maggot fly feeds and mates on
hawthorns and apples while the blueberry maggot fly, mates and lays its eggs only on
blueberries
Hybrids between two different plant species are vigorous. However, when these hybrids mate
with each other, they produce offspring that are small and sterile.
The geographic ranges of two different species of skunks overlap, but they mate in different
seasons.
Some salamander species will occasionally hybridize. The hybrids that are formed either do
not complete development or are very frail.
A bird only mates after a courtship display unique to their species.
The gametes produced by two different species of sea urchins are unable to fuse together to
fertilize.