Answer:
Allopatric speciation
Explanation:
Speciation is the gradual process by which two different species are formed from a single species due to evolution.
Allopatric speciation will occur when the speciation is due to geographical isolation of a species to the extend it prevents or interferes with the gene flow. Therefore, the populations can not mate with each other and they evolve separately.
This is what happened to the fox species when they were separated by a mountain range.
Answer:
Natural selection leads to evolution due to the way reproduction works. In the example of European moths during the industrial revolution, we can see this clearly. When the industrial revolution was going, there was more pollution, hence darkening the skies and leaving ash. Moths, which before were white with occasional black spots dominated the area until pollution effected their environment. Whiter moths were eaten by bird who could easily see them against the black trees and skies. These moths could no longer reproduce, they were dead. Moths with more black could survive longer to reproduce because they were harder to see. As time went along, the moths turned mostly black, showing an example of evolution.
Photo receptors are attached to the retina and are most numerous specifically at the fovea
Answer:
If the trait for tall and trait for yellow are recessive: ttyy and ttyy
If the trait for tall is dominant and trait for yellow is recessive: TTyy and TTyy, Ttyy and TTyy
If the trait for tall is recessive and trait for yellow is dominant: ttYY and ttYY, or TtYy and TTYY
If the trait for tall is dominant and trait for yellow is dominant TTYY and TTYY, or TtYy and TTYY
