Paper Called, The Human Embryo. Talks About All Of The Stages Of Pregnancy. Uses Several Sources To Explain The Changes That The Baby Goes Through.

1692 words - 7 pages

The Human EmbryoIn the United States alone there is an average of about four million people born every year ( In a normal pregnancy the human embryo goes through a very complicated process. During the nine months of pregnancy the embryo develops all the basic things, such as the heart, liver, and brain, that it needs to live in the outside world.A nine-month pregnancy is divided, by doctors, into three trimesters of equal length. During each trimester the baby goes through different developments and continues to grow. The first trimester is considered the time from conception to 13 weeks. Second trimester takes place from week 13 through week 29. The final trimester is week 29 through delivery, which is usually 38-40 weeks after conception.Throughout a woman's lifetime, from puberty to menopause, she will ovulate about 400 times. To conceive a baby, the woman's ovum must be fertilized within 24 hours of when it was released. This, however, does not mean the woman has to have sexual intercourse the day the ovum is released. Sperm can last several days inside the woman, so having intercourse even 4-5 days before ovulation can cause conception (Nilsson 31). Fertilization is the moment one sperm penetrates the ovum. At that same moment the DNA of the mother and father mix to form the genetic code for a brand a new human being ( sperm that penetrates the egg controls gender. Every female egg contains one X chromosome. Every sperm either contains one X or one Y chromosome. To be a male one X and one Y chromosome must be present. To be female two X-chromosomes are present. At the moment of conception the gender is decided. From that point on it can not change. All of the time there is 50% chance of getting a girl versus a boy baby. The number of X and Y chromosome sperms are equal (Nilsson 17).The moment of fertilization an adventure begins. Along with it, the first trimester of pregnancy. Twelve hours after fertilization the first cell division takes place. Over the next several days these cells continue to divide at intervals of 12-15 hours. On the third day the ovum travels out of the fallopian tube and into the uterus ( The tiny little cells, only about .15mm in length, now have the difficult task of attaching to the uterine wall. By the eighth or ninth day the ovum, now called a blastocyst, has successfully attached to the ever-thickening uterus wall, the endometrium. By this time the blastocyst contains about 400 cells. Once it attaches to the endometrium, the primary yolk sac forms. During the next few days the blastocyst divides twice daily. It will contain a couple of thousand cells by the 12th day (Nilsson 60-8).The beginning of the second week of pregnancy marks a new stage for the embryo. Every single day from this point on until the next few weeks is crucial to proper development in the embryo. The 14th day marks the collapse...

Find Another Essay On Paper called, The Human Embryo. Talks about all of the stages of pregnancy. Uses several sources to explain the changes that the baby goes through.

This essay in on "Paul's changes through out all Quiet on the Western Front" describing traits of Paul Baumer that changed during the war.

1010 words - 4 pages in causing Paul to change during the war.As it gets deeper into the war, Paul changes from the boy he used to be when the war started. His experiences in the last few years have made him see things differently, depressed, and all alone in the world. After all he has been through, Paul is not out of place with the civilized world. "At that time I still knew nothing about the war, we had only been in quiet sectors. But now I see that I have been

Odysseus, An Epic Hero - How Odysseus fulfills all of the traits of an epic hero and how he goes through the hero's journey

782 words - 3 pages hero. He also goes through the process of the hero's journey.Odysseus, like all epic heroes, is a figure of great, sometimes larger than life stature. Among Odysseus's many titles, his title of King of Ithaca is most imposing. For this reason, all of his soldiers look up to him. Also, when he arrives back on Ithaca, though the suitors had an advantage, there was no doubt that they feared him. Even before The Odyssey, Odysseus proves to be an epic

"Deviance in Christianity"This is sociology so it goes into depth about deviance in the world mainly deviance in christianity and how the lord seesus through all things.

717 words - 3 pages Deviance in ChristianityChristianity is something that is looked upon as being a great religion among saints and followers of the Messiah, Jesus Christ. This is supposed to be a religion of people who want to live their lives in the shadow of him. Our society has some way taken this religion and the followers of Christ and made a mockery out of the religion. This is showed in the daily walk of all the, so called Christians and ministers of the

Exposure. In Wilfred Owen's poem 'Exposure' what techniques does he use to convey his hatred towards war? Explain in detail all of the techniques he uses to do this.

2100 words - 8 pages him are feeling. He writes that their brains ache by the winds that are blowing. This shows that the cold is physically hurting them by giving them sore heads. We can assume that they are in a trench during World War One and there are flares going off around them. They are all awake because of the silence, as this is abnormal due to them normally hearing artillery bombardment. One of the techniques that Owen uses in this paragraph is

List and define the 5 components of all human cultures. Why do you think they are found in all cultures? Explain how these 5 components are interrelated.

805 words - 3 pages biology affects how we create culture. We are all made the same, with the same foundation for thought; meaning that when it comes down to it we all think the same about very general things. This allows all cultures to also have several commonalities among their foundations. Symbols are probably the most common things taken for granted. The simplest most everyday things are symbols. A wave of the hand can be a friendly gesture of hello. However, if

Changes Through Life Stages in No Name Women by Maxine Kington

864 words - 4 pages is an evil spirit who does not mean her well. As time passes, Kingston progressively changes her thoughts and views of her aunt that change from innocence to immoral throughout her life. Kingston is much older and no longer contains the innocence she one had. This idea of Kingston’s thoughts from pure and caring to shameful and spiteful is evolutionary. The change of Kingston’s opinion through the story shows that humans can feel very strongly

This essay is about an excert called "Speeches that Satisfy" by Jane Tully and talks about the nessesary techneqes that one would need to become a sussesful speechwriter.

834 words - 3 pages this technique is very important because if a speechwriter talks about more than one topic in a speech then the audience may think that he does not feel strongly about either of his topics. Sticking to the main topic will help a speechwriter reinforce his position toward the topic, and send out a stronger message. Failing to remain on topic can result in the audience becoming confusing and inaccurate, and will often loose the focus and interest

Cloning - The Great Human Embryo Clone Hype

1671 words - 7 pages fertilization," (5). With in-vitro fertilization, the possibility of a pregnancy being achieved for any one patient cannot be predicted. There is possibility of multiple births and no births at all. Despite the progress this technique has made in helping infertile couples conceive, the chances of a successful pregnancy are only about 20% (6 ). Drawbacks such as the procedures that risk damage to the chromosomes, the potential of fertilizing an egg with

Affecting Change - The paper talkes about the necessary changes that a company sometimes needs to go through in order to grow

1679 words - 7 pages when these changes come, changing the culture of the company as a whole becomes an effect rather than a choice. Some of these controls are directly geared towards doing just that, changing the culture of the company among employees. Organizational culture sometimes is also called organization ideology and refers to an all-encompassing way of life and a set of norms by which the company guides itself. Organizations have a deep sense of structure

This paper is about the marketing techniques that McDonald's uses.

649 words - 3 pages well-coordinated promotional program to elicit the desired audience response. McDonald's wanted to gain the trust of the general public and sensitize the public to what McDonald's was and to whom it was directed. McDonald's uses lots of advertising to show people what its restaurants are all about. Their advertising is concentrated on establishing a restaurant that both adults and children can enjoy. A strategy was implemented which aimed at

This essay is an analysis of the book "a child called it". It talks about the character and everything.

2581 words - 10 pages talked to the school and received the information they needed to take Dave away from his mother. The neighbors could have also reported signs of abuse. When Shirley one of Catherine's friends started to question Dave's treatment. Catherine stopped all contact with Shirley. Catherine was afraid of her secret getting out and to make sure of that she cut off all ties with anyone that suspected anything. "After several months, Shirley asked mother why

Similar Essays

This Essay Is About The Affect Of Human Changes To The Environment. It Uses Two Cases: The Inncident At Cherenobyl And The Draining Of The Aral Sea.

601 words - 2 pages Throughout history, geography has affected the people that inhabit it. Geography has affected how people live, their culture, and their type of society. To make life easier, people have often altered the land they live on. Sometimes these changes can damage the land and the people that live there. There are several examples of societies changing the environment to benefit their lives. Two cases of this are the Chernobyl' accident and the

This Essay Explains The Eight Stages That Erik Erikson Proposes That Everyone Goes Through. I Have Given Real Life Examples That Has Happened To Me.

2117 words - 8 pages The best-known neo-Freudian was Erik Erikson. He formulated his own theory of personality development. He projected that everyone goes through psychosocial stages rather than psychosexual stages as Freud proposed. Erikson has identified eight stages of psychosocial development that each person goes through during their entire life span. In Erikson's theory, the stages of development process unfold as we go through life. Each of these stages has

The Civil War. It Talks About All The Events That Took Place In It. There Is Also A Works Cited Page With 12 Sources.

3871 words - 15 pages war brought the ideals of liberty, equality, human dignity, and justice, to reality. Without the Civil War, our country wouldn't be the way it is right now. So much happened with the war that it would be nearly impossible to talk about it all, but there were many key events and people who took part in the it that shouldn't be left out of here, and that's what you'll learn about.I interviewed Mr. Dan Christensen, who is a social science teacher

~*Windflower By Gabrielle Roy*~ This Will Explain One Of The Themes In This Novel: Imprisonment Of Possessions. It Will Relate To The Whole Story And Several Other Sources To Express My Opinion.

1651 words - 7 pages "You never get enough of what you don't need to make you happy" Erick Hoffer. Through out history, society has supported science to look forward for inventions to improve conformity in life; this fact has changed humanity's priorities and therefore, the world itself. In other words, our science development has always had the destination for easier and longer life; however, we do not notice how this is all about materialism and how it devalues