Friday, March 20, 2020

Free Essays on How The Harlem Renaissance Writer Zora Neale Hurston Influenced America

U.S women’s History Topic: How the Harlem Renaissance Writer Zora Neale Hurston influenced America Harlem, the â€Å"Mecca† of the urban north. A place where blacks could mingle with whites and not worry about the â€Å"Jim Crow† laws of the south. Harlem in the 1920’s was a hustling and bustling metropolis of the humanities. You had good music, art, and literature. You had blacks making advances in politics, and other social aspects of life. This caused blacks to make a mad exodus from the south to the urban centers of Chicago, New York, Cleveland, Detroit, and other major northern cities. Blacks were weary of the agrarian south and its oppressive political structure and wanted the freedom allowed to their northern neighbors. With factory jobs abundant, a black man in the north had a much better standard of living than his counterpart in Alabama. However, just because we partied together did not mean that blacks and whites were equal. Blacks still suffered staunch racism, but just in a different climate. Blacks were allowed to make headway in the arts, however most of those that were making it did so as â€Å"sambo†, or as a person making fun of the lower class. Just as southerners divided blacks by using their skin tones, northern whites divided blacks by economic class. If you were poor, and undereducated you were looked down upon by the new middle class of blacks as being â€Å"niggerish†. You were thought be slowing down the advancement of other blacks because of your lack of culture. The lower classes thought that the middle classes were trying to become white. This made for tension not only with whites, but also among blacks in their own communities. Although many left the â€Å"deep south† to avoid the poor agrarian lifestyle of their ancestors, the truth was that the blacks that moved n orth were not finding all of the great jobs they heard of. In fact, most blacks that did find good paying jobs wer... Free Essays on How The Harlem Renaissance Writer Zora Neale Hurston Influenced America Free Essays on How The Harlem Renaissance Writer Zora Neale Hurston Influenced America U.S women’s History Topic: How the Harlem Renaissance Writer Zora Neale Hurston influenced America Harlem, the â€Å"Mecca† of the urban north. A place where blacks could mingle with whites and not worry about the â€Å"Jim Crow† laws of the south. Harlem in the 1920’s was a hustling and bustling metropolis of the humanities. You had good music, art, and literature. You had blacks making advances in politics, and other social aspects of life. This caused blacks to make a mad exodus from the south to the urban centers of Chicago, New York, Cleveland, Detroit, and other major northern cities. Blacks were weary of the agrarian south and its oppressive political structure and wanted the freedom allowed to their northern neighbors. With factory jobs abundant, a black man in the north had a much better standard of living than his counterpart in Alabama. However, just because we partied together did not mean that blacks and whites were equal. Blacks still suffered staunch racism, but just in a different climate. Blacks were allowed to make headway in the arts, however most of those that were making it did so as â€Å"sambo†, or as a person making fun of the lower class. Just as southerners divided blacks by using their skin tones, northern whites divided blacks by economic class. If you were poor, and undereducated you were looked down upon by the new middle class of blacks as being â€Å"niggerish†. You were thought be slowing down the advancement of other blacks because of your lack of culture. The lower classes thought that the middle classes were trying to become white. This made for tension not only with whites, but also among blacks in their own communities. Although many left the â€Å"deep south† to avoid the poor agrarian lifestyle of their ancestors, the truth was that the blacks that moved n orth were not finding all of the great jobs they heard of. In fact, most blacks that did find good paying jobs wer...

Tuesday, March 3, 2020

Bilateral Symmetry Definition

Bilateral Symmetry Definition Bilateral symmetry is a body plan in which the body can be divided into mirror images along a central axis. In this article, you can learn more about symmetry, advantages of bilateral symmetry and examples of marine life that exhibit bilateral symmetry. What Is Symmetry? Symmetry is the arrangement of shapes or body parts so that they are equal on each side of a dividing line. In an animal, this describes the way its body parts are arranged around a central axis.   There are several types of symmetry found in marine organisms. The two main types are bilateral symmetry and radial symmetry, but organisms may also exhibit pentaradial symmetry or biradial symmetry.  Some organisms are asymmetrical. Sponges are the only asymmetrical marine animal. Definition of Bilateral Symmetry Bilateral symmetry is the arrangement of body parts into left and right halves on either side of a central axis. When an organism is bilaterally symmetrical, you can draw an imaginary line (this is called the sagittal plane) from the tip of its snout to the tip of its back end, and on either side of this line would be halves that are mirror images of each other. In a bilaterally symmetrical organism, only one plane can divide the organism into mirror images. This can also be called left/right symmetry. The right and left halves arent exactly the same. For example, the right flipper of a whale may be a little larger or differently shaped than the left flipper.   Many animals, including humans, exhibit bilateral symmetry. For example, the fact that we have an eye, arm, and leg in about the same place on each side of our bodies makes us bilaterally symmetrical. Bilateral Symmetry Etymology The term bilateral can be traced to the Latin bis (two) and latus (side). The word symmetry comes from the Greek words syn (together) and metron (meter). Characteristics of Animals That Are Bilaterally Symmetrical Animals that exhibit bilateral symmetry typically have head and tail (anterior and posterior) regions, a top and a bottom (dorsal and ventral) and left and right sides. Most have a complex brain that is located in the head, which is part of a well-developed nervous system and may even have right and left sides. They also usually have eyes and a mouth located in this region. In addition to having a more developed nervous system, bilaterally symmetrical animals can move more quickly than animals with other body plans. This bilaterally symmetrical body plan may have evolved to help animals better find food or escape predators.  Also, having a head and tail region means that waste is eliminated in a different region from where food is eaten - definitely a perk for us!   Animals with bilateral symmetry also have better eyesight and hearing than those with radial symmetry. Examples of Bilateral Symmetry Humans and many other animals exhibit bilateral symmetry. In the ocean world, most marine creatures, including all vertebrates and some invertebrates exhibit bilateral symmetry. Following are examples of marine life profiled on this site that exhibit bilateral symmetry: Marine MammalsSea TurtlesFishLobstersCephalopodsNudibranchsEchinoderms - although they have  pentaradial  (5-sided) symmetry as adults, echinoderm larvae are bilaterally symmetrical. References and Further Information Morrissey, J.F. and J.L. Sumich. 2012. Introduction to the Biology of Marine Life (10th Edition). Jones Bartlett Learning. 467pp.Natural History Museum. Bilateral Symmetry. Accessed June 16, 2015.Prosser, W. A. M. 2012. Animal Body Plans and Movement: Symmetry in Action. Decoded Science. Accessed February 28, 2016.University of California Museum of Paleontology. Bilateral (left/right) Symmetry. Understanding Evolution. Accessed February 28, 2016.