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Interbreeding two different species of lovebirds produces offspring unable to build a nest after they mature b?
Interbreeding two different species of lovebirds produces offspring unable to build a nest after they mature because they lack the innate knowledge needed to carry the nesting materials. The hybrid offspring do not reproduce, and this limits genetic mixing of the two species. This is an example of:
a. hybrid inviability.
b. sympatric speciation.
c. gametic inviability.
d. behavioral isolation.
sympatric speciation is thought to be an uncommon but plausible process by which genetic divergence (through reproductive isolation) of various populations from a single parent species and inhabiting the same geographic region leads to the creation of new species. Therefore the answer could not be B. because the offspring cannot breed and produce more offspring so they could no produce a new species.
Hybrid inviability is a post-zygotic barrier, which reduces a hybrid's capacity to mature into a healthy, fit adult. So the answer must be A. Because the interbreeding causes problems in the offspring so they are unable to breed.
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