Answer: Option D) The mountain ants could not mate with the valley ants
Explanation:
One distinguishing feature of species is their ability to mate with one another.
For example the mountain ants can mate freely with another, so also the valley ants because each belongs to the same specie.
In constrast, the valley ants cannot mate with the mountain ants due to years of reproductive isolation between them, thus resulting in both being different species ( Sympatric species, living in the same territory, but unable to interbreed)
Answer:
In an ancestral elm species, mutations gave rise to the phenotypic trait "winged-seeds". Subsequently, selection favored elm plants with winged-seeds that diverged over time to become a separate species
Explanation:
A mutation is a genetic change in the DNA sequence. In general, mutations have a negative impact on the fitness of the individual (i.e., mutations are generally deleterious) and therefore they disappear from the population. However, there are situations where mutations are beneficial and confer an adaptive advantage, thereby increasing their frequency in the population. In this case, mutations associated with the formation of winged-seeds conferred an adaptive advantage (i.e., higher seed dispersal capacity) to individuals who had this phenotypic trait, thereby these individuals had more chances to reproduce and pass their genes to the next generation. Eventually, Elm plants with winged-seeds accumulated sufficient genetic differences to prevent interbreeding, leading to the formation of a separate species.
Answer: found on earths surface
Explanation: I did test