is the current, highly-political, method for selecting and seating justices on the United States Supreme Court the most effective way to staff the federal judiciary? Or, on the other hand, should we (as a society) look for a less-political way to go about this process? If we selected another method, what would that look like? In other words, how do you think this process could work better?
In: Economics
Read the proposed theories for the origins of bipedalism presented below. Select one theory that you find compelling and present two points of data in support of this theory. Select a second theory that you find improbable and present at least one point of data to counter this theory. Any information that you pull from a website you must cite (by including the web address next to the fact). Present your argument in essay format, using complete sentences. Do not simply copy and paste from other sources. Your total response should be no longer than 300 words in length.
ORIGINS OF BIPEDALISM
Why do we walk on two legs? If you asked a roomful of anthropologists, you'd likely not get the same answer from any two of them. Specialists cite everything from changing landscapes to needing to keep cool to heightening sexual attraction as probable causes of our upright stance, generally agreeing only on one point: everyone else's hypothesis is wrong. Think about the anatomical changes that accompanied bipedalism in light of the following theories. Do the theories hold up to inspection?
01 Hauling Food
As the African landscape shifted gradually from dense forests toward large patches of savannah, early hominids found their food supplies waning, leading them to descend from the trees and become ground-dwellers. Because these early human ancestors could no longer feed where they lived, they were forced to begin carrying large amounts of sustenance over long distances back to their home bases—a tricky task had they remained quadrupeds. While some anthropologists contend that early hominids gathered fruits and nuts, a few argue that they were scavengers, stealing predators' kills. An upright stance would have enabled our ancestors to lug carcasses to safer areas for consumption, while also allowing them to see other food sources or potential danger at greater distances.
02 A New World
Many anthropologists hypothesize that our ancestors developed an upright posture in order to carry food over long distances, but others believe they stood up merely to find it. As early hominids left the comfort of the forest to explore the savannah, they no longer needed a body structure suitable for climbing. Those who could walk upon two feet were better able to survive because they expended less energy and could travel longer distances than knuckle-walkers; they were also better able to see potential dangers lurking in the distance. Other anthropologists have suggested further environmental factors that might have helped urge our ancestors to stand upright, such as the cold and wet ground conditions that today lead chimpanzees to become temporary bipeds until they reach dry land.
03 Attracting Mates
Anthropologist C. Owen Lovejoy stirred controversy in 1981 when he attributed sex— specifically males' desire to get more of it—as a direct reason for why we walk upright. According to Lovejoy's behavioral model, males who could walk bipedally freed their arms to carry more food than their quadruped counterparts could hold, thus making the knucklewalkers seem far less appealing to females. In this model, the upright males were simply better breadwinners. Their ability to ration more food for females (who remained at the home base to care for the offspring) ensured that they were able to reproduce, thus leading to future generations of adept bipeds who in turn were able to pass on their own genes.
04 Grabbing a Bite
Some anthropologists argue that early hominids could not have become ground-dwellers and bipeds in a single evolutionary step, as many hypotheses imply. Instead, they contend, the ability to walk upright was in part a serendipitous by-product of new feeding habits. As our ancestors descended from the trees to forage on the ground for low-hanging fruits and berries, they began to feed from a squatting position. Over time, physiological changes occurred in their upper bodies, backbones, and pelvic areas, causing their weight and centers of balance to shift to a lower point in the body. This gave the hominids a steadier stance as well as the ability to stand upright with greater ease than their quadruped cousins. When our ancestors developed the need to reach higher and stand, these new physical traits came in handy—just as evolving a long neck proved favorable for the giraffe.
05 Keeping Cool
Walking on two feet did more than help early hominids conserve energy, as some hypotheses suggest—it also protected them from overheating. According to evolutionary biologist Peter Wheeler, early bipeds were generally exposed to less direct sunlight on the savannah than quadrupeds of the same size. In fact, when the sun shone directly overhead, the heat load upon a hominid on two feet would have been 60 percent less than that upon a knuckle-walker. Additionally, bipedalism raised hominids' bodies above the ground, enabling their skin to come in better contact with cooler and faster-moving breezes. This allowed for further heat dissipation through convection, and, says Wheeler, it meant that biped hominids needed to consume only about three pints of water per day, whereas quadrupeds needed five.
06 Aquatic Apes
Although most paleoanthropologists, despite their many differences, tend to agree that our ancestors became bipeds on dry land, a few suggest an alternate possibility. Aquatic Ape Theory, posed by marine biologist Alister Hardy in the 1930s, postulates that several human traits, from relatively minimal body hair to the ability to sweat moisture and salt, can be explained only through the idea that early hominids once lived in semi-aquatic environments. The hypothesis claims that our ancestors had to wade regularly through shallow lake- or riverside waters in order to reach shellfish, aquatic plants, and other potential food sources. With their heavy upper bodies, quadrupeds would have had a more difficult time adjusting to walking upright on the savannah than in buoyant water.
07 Weapons and Tools
Some of the oldest and most popular suggestions for why we developed into bipeds state that our upright posture relates directly to our need to use weapons and tools. While some researchers hypothesize that it was bipedalism that brought forth our ability to use these primitive devices, others believe the reverse—that the advent of tool and weapon use encouraged us to become bipedal. Charles Darwin, for one, felt that early hominids would have been "better able to defend themselves with stones or clubs, to attack their prey, or to otherwise obtain food" if they stood, walked, and ran erect, whereas quadrupeds of the same size would not have been able to exert the same force from a sitting or squatting position.
In: Other
Discuss, in your own words using 500 words or more, how
virtualization may create it's own security vulnerabilities.
In: Computer Science
Assume the Pacific Ocean has a surface area of 1.7 x 108
km2 and an average depth of 3800 m.
Calculate the volume of water in the ocean in
liters:
In: Chemistry
please explain and label the signals of ethylbenzene c6h14o proton nmr and IR. thank you..
In: Chemistry
Q2) Answer with details :
a - What are the four requirements engineering activities?
b- What are the incremental delivery advantages?
In: Computer Science
Explain why the diffraction pattern of a human hair appears in the direction that it does.
In: Physics
1. Describe the role of the citric acid cycle as a central metabolic mechanism. Explain what happens to the cells' abilities to oxidize acetyl CoA when intermediates of the cycle are drained off for amino acid biosynthesis.
2. Describe the three steps in photosynthesis, detailing the interrelationships among them. (c.f. the discussion in the online classroom).
In: Chemistry
The radius of the aorta is about 1.4 cm , and the blood passing through it has a speed of about 40 cm/s .
Calculate the average speed of blood flow in the major arteries of the body, which have a total cross-sectional area of about 1.8 cm^2
In: Physics
How does crossing 2 true-breeding individuals show which version of the trait is dominant?
In: Biology
Manchester Inc. must purchase $10,000,000 worth of service equipment and is weighing the merits of leasing the equipment or purchasing. The company has a zero tax rate due to tax loss carry-forwards, and is considering a 5-year, bank loan to finance the equipment. The loan has an interest rate of 8% and would be amortized over 5 years, with 5 end-of-year payments. Manchester can also lease the equipment for 5 end-of-year payments of $2,300,000 each. How much larger or smaller is the bank loan payment than the lease payment?
|
$185,163 |
||
|
$196,854 |
||
|
$204,565 |
||
|
$217,324 |
||
|
$238,456 |
In: Finance
Using SQL
1. Create a table (Passenger) based on the specifications below: Field Name Type/Length
PassID text 5 fixed (Primary Key)
PassLName text 25 variable
PassFName text 20 variable
PassAge numeric Maint_DT date
2. Add the 5 records below using the INSERT command. For the Maint_DT attribute use the following Access function “Date()”.
PassID PassLName PassFName PassAge
00001 Morris Lucy 50
00002 Smith Trudy 61
00003 Collins Harry 32
00004 Dean Mark 27
00005 Hunter Alan 12
3. Select all passengers sorted from oldest to youngest.
4. Select PassID, PassLName, and Maint_DT for all records.
In: Computer Science
The following adjusted trial balance information (with accounts
in alphabetical order) for Willis Tour Co. Inc. as at December 31,
2017, was made available after its second year of
operations:
| Account | Debit | Credit | |||
| Accounts Payable | $ | 2,500 | |||
| Accumulated Depreciation, Office Equipment | 8,000 | ||||
| Cash | $ | 17,500 | |||
| Common Shares, 20,000 authorized; 10,000 issued and outstanding |
12,500 | ||||
| Dividends Payable | 4,500 | ||||
| Gain on Expropriation of Land and Building | 25,000 | ||||
| Income Tax Expense | 12,000 | ||||
| Income Tax Payable | 2,000 | ||||
| Loss on Sale of Office Equipment | 13,500 | ||||
| Notes Payable (due in 18 months) | 8,500 | ||||
| Office Equipment | 56,000 | ||||
| Operating Expenses | 195,500 | ||||
| Preferred Shares, $0.25 non-cumulative; 5,000
shares authorized; 2,000 shares issued and outstanding |
10,000 | ||||
| Prepaid Rent | 22,500 | ||||
| Retained Earnings | 14,500 | ||||
| Ticket Sales | 229,500 | ||||
| Totals | $ | 317,000 | $ | 317,000 | |
Required:
The dividends declared by Willis in the amount of $4,500 during the
year ended December 31, 2017, were debited directly to retained
earnings. Prepare an income statement (in multi-step format), and a
classified balance sheet for Willis Tour Co. Inc. using the
information provided. Include the appropriate presentation for
earnings per share. (Round the "Earnings per Share" answers
to 2 decimal places. Negative amounts should be indicated by a
minus sign.)
|
In: Accounting
Create an application named ShirtDemo that declares several Shirt objects and includes a display method to which you can pass different numbers of Shirt objects in successive method calls.
The Shirt class contains auto-implemented properties for a Material, Color, and Size (all of type string).
Here is my code:
//Program.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ShirtApplication
{
class Program
{
static void Main(string[] args)
{
//Create an instance of Shirt
Shirt shirt = new Shirt("cotton", "white", "L");
//print heading
Console.WriteLine("{0,-12}{1,10}{2,10}", "Material", "Color","Size");
//call display method
display(shirt);
//Create an instance of Shirt
shirt = new Shirt("cotton", "blue", "XL");
//call display method
display(shirt);
//Create an instance of Shirt
shirt = new Shirt("polyester", "pink", "M");
//call display method
display(shirt);
Console.WriteLine();
Console.WriteLine("{0,-12}{1,10}{2,10}", "Material", "Color", "Size");
//Create an instance of Shirt
shirt = new Shirt("cotton", "white", "L");
//call display method
display(shirt);
//Create an instance of Shirt
shirt = new Shirt("cotton", "blue", "XL");
//call display method
display(shirt);
//Create an instance of Shirt
shirt = new Shirt("polyester", "pink", "M");
//call display method
display(shirt);
//Create an instance of Shirt
shirt = new Shirt("silk", "yellow", "S");
//call display method
display(shirt);
Console.WriteLine();
Console.WriteLine("{0,-12}{1,10}{2,10}", "Material", "Color", "Size");
//Create an instance of Shirt
shirt = new Shirt("cotton", "white", "L");
//call display method
display(shirt);
//Create an instance of Shirt
shirt = new Shirt("cotton", "blue", "XL");
//call display method
display(shirt);
shirt = new Shirt("polyester", "pink", "M");
//call display method
display(shirt);
//Create an instance of Shirt
shirt = new Shirt("silk", "yellow", "S");
display(shirt);
shirt = new Shirt("silk", "white", "XXL");
//call display method
display(shirt);
Console.ReadKey();
}
//The metod display that takes Shirt object and prints the properties of shirt object
//to console
public static void display(Shirt shirt)
{
Console.WriteLine("{0,12}{1,10}{2,10}", shirt.Material, shirt.Color, shirt.Size);
}
}
}
here is the error message:
Unable to instantiate shirt objects with the correct properties.
Checks
Unit TestIncomplete
Shirt class is defined and can be instantiated
Build Status
Build Failed
Build Output
Compilation failed: 1 error(s), 0 warnings ShirtDemo.cs(77,36): error CS0246: The type or namespace name `Shirt' could not be found. Are you missing an assembly reference?
Test Contents
[TestFixture]
public class ShirtClassTest
{
[Test]
public void Shirt()
{
Shirt shirt1 = new Shirt();
shirt1.Material = "cotton";
shirt1.Color = "Green";
shirt1.Size = "Large";
Shirt shirt2 = new Shirt();
shirt2.Material = "polyester";
shirt2.Color = "red";
shirt2.Size = "small";
Assert.AreEqual("cotton", shirt1.Material);
Assert.AreEqual("Green", shirt1.Color);
Assert.AreEqual("Large", shirt1.Size);
Assert.AreEqual("polyester", shirt2.Material);
Assert.AreEqual("red", shirt2.Color);
Assert.AreEqual("small", shirt2.Size);
}
}
Unit TestIncomplete
Get and set the Material property of the Shirt object, test 1
Build Status
Build Failed
Build Output
Compilation failed: 1 error(s), 0 warnings ShirtDemo.cs(77,36): error CS0246: The type or namespace name `Shirt' could not be found. Are you missing an assembly reference?
Test Contents
[TestFixture]
public class ShirtClassTest
{
[Test]
public void Shirt()
{
Shirt shirt1 = new Shirt();
shirt1.Material = "cotton";
Shirt shirt2 = new Shirt();
shirt2.Material = "polyester";
Assert.AreEqual("cotton", shirt1.Material, "Unable to set or get the `Material` property of the class `Shirt`");
Assert.AreEqual("polyester", shirt2.Material, "Unable to set or get the `Material` property of the class `Shirt`");
}
}
Unit TestIncomplete
Get and set the Color property of the Shirt class, test 2
Build Status
Build Failed
Build Output
Compilation failed: 1 error(s), 0 warnings ShirtDemo.cs(77,36): error CS0246: The type or namespace name `Shirt' could not be found. Are you missing an assembly reference?
Test Contents
[TestFixture]
public class ShirtClassTest
{
[Test]
public void Shirt()
{
Shirt shirt1 = new Shirt();
shirt1.Color = "Green";
Shirt shirt2 = new Shirt();
shirt2.Color = "red";
Assert.AreEqual("Green", shirt1.Color, "Unable to set or get the `Color` property of the class `Shirt`");
Assert.AreEqual("red", shirt2.Color, "Unable to set or get the `Color` property of the class `Shirt`");
}
}
Unit TestIncomplete
Get and set the Size property of the Shirt class, test 3
Build Status
Build Failed
Build Output
Compilation failed: 1 error(s), 0 warnings ShirtDemo.cs(77,36): error CS0246: The type or namespace name `Shirt' could not be found. Are you missing an assembly reference?
Test Contents
[TestFixture]
public class ShirtClassTest
{
[Test]
public void Shirt()
{
Shirt shirt1 = new Shirt();
shirt1.Size = "Large";
Shirt shirt2 = new Shirt();
shirt2.Size = "small";
Assert.AreEqual("Large", shirt1.Size, "Unable to set or get the `Size` property of the class `Shirt`");
Assert.AreEqual("small", shirt2.Size, "Unable to set or get the `Size` property of the class `Shirt`");
}
}
0.00 out of 10.00
Display method defined
2
0 out of 2 checks passed. Review the results below for more details.
Checks
Unit TestIncomplete
Display method displays all shirt properties, test 1
Build Status
Build Failed
Build Output
Compilation failed: 2 error(s), 0 warnings NtTest2202f400.cs(6,14): error CS0246: The type or namespace name `ShirtDemo' could not be found. Are you missing an assembly reference? ShirtDemo.cs(77,36): error CS0246: The type or namespace name `Shirt' could not be found. Are you missing an assembly reference?
Test Contents
[TestFixture]
public class ShirtClassDisplayTest
{
[Test]
public void ShirtTest1()
{
using (StringWriter sw = new StringWriter())
{
Console.SetOut(sw);
Shirt shirt1, shirt2, shirt3;
shirt1 = new Shirt();
shirt2 = new Shirt();
shirt3 = new Shirt();
shirt1.Material = "cotton";
shirt1.Color = "white";
shirt1.Size = "L";
shirt2.Material = "cotton";
shirt2.Color = "blue";
shirt2.Size = "XL";
shirt3.Material = "polyester";
shirt3.Color = "pink";
shirt3.Size = "M";
Display(shirt1, shirt2, shirt3);
StringAssert.Contains("cotton", sw.ToString());
StringAssert.Contains("white", sw.ToString());
StringAssert.Contains("L", sw.ToString());
StringAssert.Contains("blue", sw.ToString());
StringAssert.Contains("XL", sw.ToString());
StringAssert.Contains("polyester", sw.ToString());
StringAssert.Contains("pink", sw.ToString());
StringAssert.Contains("M", sw.ToString());
Assert.IsFalse(sw.ToString().Contains("silk"), "Output should not contain `silk`");
Assert.IsFalse(sw.ToString().Contains("yellow"), "Output should not contain `yellow`");
}
}
}
Unit TestIncomplete
Display method displays all shirt properties, test 2
Build Status
Build Failed
Build Output
Compilation failed: 2 error(s), 0 warnings NtTestfc79b0ec.cs(6,14): error CS0246: The type or namespace name `ShirtDemo' could not be found. Are you missing an assembly reference? ShirtDemo.cs(77,36): error CS0246: The type or namespace name `Shirt' could not be found. Are you missing an assembly reference?
Test Contents
[TestFixture]
public class ShirtClassDisplayTest
{
[Test]
public void ShirtTest2()
{
using (StringWriter sw = new StringWriter())
{
Console.SetOut(sw);
Shirt shirt1, shirt2, shirt3, shirt4;
shirt1 = new Shirt();
shirt2 = new Shirt();
shirt3 = new Shirt();
shirt4 = new Shirt();
shirt1.Material = "cotton";
shirt1.Color = "white";
shirt1.Size = "L";
shirt2.Material = "cotton";
shirt2.Color = "blue";
shirt2.Size = "XL";
shirt3.Material = "polyester";
shirt3.Color = "pink";
shirt3.Size = "M";
shirt4.Material = "silk";
shirt4.Color = "yellow";
shirt4.Size = "S";
Display(shirt1, shirt2, shirt3, shirt4);
StringAssert.Contains("cotton", sw.ToString());
StringAssert.Contains("white", sw.ToString());
StringAssert.Contains("L", sw.ToString());
StringAssert.Contains("blue", sw.ToString());
StringAssert.Contains("XL", sw.ToString());
StringAssert.Contains("polyester", sw.ToString());
StringAssert.Contains("pink", sw.ToString());
StringAssert.Contains("M", sw.ToString());
StringAssert.Contains("silk", sw.ToString());
StringAssert.Contains("yellow", sw.ToString());
StringAssert.Contains("S", sw.ToString());
}
}
}In: Computer Science
In a miminum of of 300 words describe how important is communication within the workplace. Whats the proper way to send a email and business letter? How has technology changed the communication within the workplace?
In: Psychology