1)What happened with Diane Dodd and the fruit flies? How did she create reproductive isolation? Diane Dod took a group of fruit flies and fed them, creating reproductive isolation.
2) What is the definition a species? Species are a group of individual that can interbreed and create fertile offspring.
3) What are the two main types of barriers in reproductive isolation? Physical and pre/post-zygotic.
4) What is gene flow? What is reproductive isolation? Is when the gene within a population are not able to mix.Reproductive isolation is a population not being able to reproduce with rest of the population due to barriers.
5) What is geographic isolation? (Give an example). When there is isolation in the population due to where they exist. Ulmis Pulima is an example because it cannot breed entirely due from the separation by the Great Wall of China.
6) What is allopatric speciation? (Give an example). 2 groups that have different lands. An example would be the meta-lark.
7) What is sympatric speciation? (Give an example). Something just within that population 2 species living together . An example would be in plants.
8) What is peripatric/parapatric speciation? (Give an example). Peripatric/parapatric selection is when 2 groups of a population move to another place and start breeding. An example would be the "forest" elephant that is different to the African elephant.
9) What are pre-zygotic barriers? Name the types of pre-zygotic barriers (Explain each). Pre-zygotic barrier are barriers formed before a zygote is formed. Temporal is a breeding species that breed at a different time of the year such as toads. Mechanical are when reproductive organs of species cannot one another such as snails. And behaivoral is when the behaivor of species or mating calls are different such as a meta-lark.
10) What are post-zygotic barriers? Name the types of post-zygotic barriers- give examples. Post-zygotic barriers are barriers that when sperm and egg mix to form a zygote but the zygote may die. Zygote morality is when sperm and egg mix to form a zygote but the zygote may die. Hybrid sterility is when 2 species are mixed too create 2 whole new species. The offspring will survive but can't reproduce.
11) What is polyploidy? What happens? Where is this common? An example of very quick speciation. Due to a mistake in the chorosome number. It is a common in plants.
12) What is the theory of Punctuated Equilibrium? The theory is that species change in very fast over time rather than gradually.