0
It doesn't per se. Speciation occurs usually when two gene pools are isolated long enough by geography or by separate selective pressures that one group becomes able to reproduce with the other with difficulty, and eventually not at all. Horses can mate with zebras and a few other animals for instance, but produce sterile offspring.
Speciation has been observed in nature many times, and forced to occur in the laboratory. Google "instances of speciation" for examples.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What two ideas did Darwin use to explain evolution?
natural selection and common descent
What proposed natural selection to explain change in species?
Charles Darwin! ummm it's kinda obvious! Durr
Explain the correlation between Darwin's theory of natural selection and malthus' idea divine institution?
explain the correlation between Darwin's theory and Malthus' idea
6 Explain why evolution by natural selection can not occur if the variation in a characteristic does not contribute to differences in fitness?
If there is not reproductive fitness conveyed by a variant trait, then natural selection has nothing to select and nothing to promote into the populational gene pool.
How did Darwin explain the patterns of distribution of plants and animals?
He explained them in terms of descent with modification, common descent and natural selection.
What are the 4 stages of natural selection and explain each?
nothing
Explain what is meant by “Natural selection”?
bears light and dark
Today SCIENTISTs Explain natural selection in terms of changes in?
genes
What can the theory of evolution by natural selection explain about a population?
How it can change in response to its enviroment
Is it true that natural selection helps explain how new species develop?
Yes, it is true.
State a reason to explain why a male peacock has colourful feathers?
To attract females. Natural Selection*
Explain one factor that affect survival and natural selection?
eszter likes boys <3
What is a word with a special meaning in a area of study?
Specialization
Explain how natural selection is at work when a species becomes extinct?
According to science, natural selection chooses the best features for the best survival. When those processes do not occur for some reason, the species does not survive.
How does Darwins theory of natural selection explain how the modern giraffe evolved from short-necked amcestors?
please answer
What two ideas did Darwin use to explain evolution?
natural selection and common descent
Explain the difference between artificial and natural selection?
Artificial selection is anthropogenic -- humans interfere with nature to determine what traits get passed on, whereas natural selection is when through sexual reproduction the traits passed on are determined by survival of the fittest.
