Answer: A.) They are destructive to native species and have no natural predators.
An invasive species is a species which when introduced or immigrated to a new ecosystem compete with the native species for resources as a consequence, this species is responsible from elimination, extinction and migration of native species living in an ecosystem. Cane toads in Australia are considered as an invasive species rather than simply nonnative because they are destructive to native species and have no natural predators.
<span>Cane toads in Australia are considered invasive species rather than simply nonnative because: They are destructive to native species and have no natural predators.</span>
Natural selection. The trait that is unfavorable to the baby giraffe's survival will cause the death of giraffes with that specific gene that is responsible for a short neck vs a long neck. Natural selection causes traits that help the survival of the species will be carried throughout generations while unfavorable traits will be lost.
