The black tailed fox established itself on the white-tailed fox island and reproduced with thewhite-tailed foxes. Several generations later, the white-tailed island population now consistsof 38 black tailed foxes and 162 white tailed foxes. Use the Hardy-Weinberg equations todetermine the following. (2.5 pts, 0.5 pts for each correct answer.)p2 = q2 = 2pq = p = q =
p² = 0.564² ≈ 0.319, q² = 0.436² ≈ 0.19, 2pq = 0.492 ≈ 0.492, p = 0.564, and q = 0.436.
selection
diversifying/disruptive - dark and light oysters are more able to camouflage and less vulnerable to predation than medium colored oysters directional - giraffes with longer necks are more easily able to reach food than giraffes with shorter necks stabilizing - cacti with too many spines don't absorb enough water while cacti with too few spines are susceptible to predation
4 assumptions
no mutation, random mating, no gene flow, and no natural selection
One population of island foxes all have black-tipped tails, and a population on a differentisland all have white-tipped tails. Tail tip color is determined by a single gene with two alleles,with black being dominant to white. If a fox with a black tail was transported to the otherisland and able to successfully reproduce with the existing population of foxes with white tails,is this population in Hardy Weinberg Equilibrium? Why or why not
No, the fox population on the second island is not in Hardy-Weinberg equilibrium after the introduction of the black-tailed fox. This is because the introduction of a new allele (the black tail allele) disrupts the initial equilibrium established by the white tail allele alone.
“A focus of community life was the fortbuilt by John Sutter,” but they never mention that the “community” was largelyAmerican Indians. American History devotes almost a page to Sutter’s Fortwithout ever hinting that Native Americans were anything other than enemie
It’s important that we recognize the “Indian-ness of some of our wars.” In the 17th and early 18th centuries, Europe fought four major wars on American soil, all of which included huge numbers of native casualties. Significant numbers of natives fought in the War of 1812, as well as the Civil War and the Mexican American War.
I began hearing disparagingremarks about immigrants and I observed the confusion, exasperation, and frustration ofthe long-time residents of Pelican Rapids, including my relatives.
Like I said, molst of my relatives share that view and I think its really important to understand where they are coming from and why those thoughts are being provoked. I think that the UberLiberal view of people like my relatives only serves to label us as comfy 'city slickers' even more and perpetuates the animosity between us.
On the one hand, citizens,politicians and community groups in small towns across Minnesota bemoan the loss ofvitality due to depopulation and “brain-drain” (or human capital flight). On the otherhand, rural communities often respond to the population growth resulting fromimmigration with suspicion and prejudice, suggesting that immigrants are takingadvantage of Minnesota’s liberal welfare system and pushing whites out of job
In my this is the view that the majority of them have, a lot of my family work on farms in southwest Minnesota that they don't even own. The growing workforce for farms like these are majority immigrants and a lot of my family sees this as a threat to them, considering that they dont own the land that they are farming or working on.
“jobs requiring high-skill workers arebecoming a crucial part of the rural economy–accounting for nearly 60% of today’s ruraljobs,
these "high-skill" jobs are also becoming more and more basic in rural areas as the education lev el of rural areas also declines.
. While rural jobs several decades ago were mostly on thefarm, our rural population today must have transportation to jobs that are located in thenext town, the next county, or beyond.
Often in rural areas, there is a lot of need for transportation as the jobs that are commonly associated with rural areas are usually in the workforce and blue-collar. People with disabilities or those who are not able to work in the labor area will need transportation to areas that offer jobs for them.
we observe that the urbanization of the Minnesota countryside outside theMinneapolis-St. Paul commuting field during the past three decades is associated with a steadytransformation of local populations and the local economies that support them.
for most of Minnesota its like this because the centers of business for corporations are rarely located in the areas which they are manufactured/farmed/etc. Its most often that the business centers are in urban areas not in rural.
These terms originated in academic sociology
The terms are also rapidly changing as settlements and townships merge and grow into. "urban" areas over time.
People seem to like spreading out, many(probably most) preferring low-density living over high density,
In minneapolis for instance living low-density is more expensive, you see higher price ranges when you move farther out from the center of the city towards the burbs.
Chemically, europium’s reactions are similar to calcium. It is used in some superconductor alloys and in television screens, where it produces the red color.
europium has been popularly used for the red flash and light in smart phones.
when they add the zinc dust to the europium to separate it can become flammable and dangerous.
Europium is used in the printing of euro banknotes. It glows red under UV light, and forgeries can be detected by the lack of this red glow.
When they scan a bill they are looking for the europium flash.
In 1901, Eugène-Anatole Demarçay carried out a painstaking sequence of crystallisations of samarium magnesium nitrate, and separated yet another new element: europium.
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