Chapter 9 The Continuity of Life: Cellular Reproduction Summary (184)
Reproduction is important for the survival of all living things. Without a mechanism for reproduction, life would come to an end. There are two types of reproduction to learn in elementary grades, asexual and sexual reproduction. Many teachers are afraid of discussing reproduction, but if presented as a factual lesson it is easy for the students to understand the principles without the standard giggles.
Asexual reproduction refers to simple cell division that produces an exact duplicate of an organism. There are many different types of asexual reproduction which can be discussed to show students the variability of modes of reproduction. Some single-celled organisms reproduce by simple cell division, this is called binary fission. In this manner, the mother cell simply splits in half producing two daughter cells. Some cells reproduce by unequal division of the cells, this is called budding. In this process the bud forms as a knob on the mother cell. The nucleus divides and identical parts go to the mother cell and the bud. The bud may grow until it is as large as the mother cell and can form buds of its own. In some cases buds
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Red biotechnology involves medical processes such as getting organisms to produce new drugs, or using stem cells to regenerate damaged human tissues and perhaps re-grow entire organs. White (also called gray) biotechnology involves industrial processes such as the production of new chemicals or the development of new fuels for vehicles. Green biotechnology applies to agriculture and involves such processes as the development of pest-resistant grains or the accelerated evolution of disease-resistant animals. Blue biotechnology, rarely mentioned, encompasses processes in marine and aquatic environments, such as controlling the proliferation of noxious water-borne
Miranda is what I can describe as a regular, maybe even stereotypical, sixteen-year-old teenager. She goes to school, she mediates between best friends that are growing apart, she’s angry at her mother for limiting her from doing the things she wants to do. She worries about prom, boys, and studying for math tests. But of course, all that changes when the asteroid hits the moon. Miranda changes from defiant teen, sneaking out of the house to go for a swim in the pond and sulking over why her younger brother Jon gets all the good food, to understanding that she will do whatever she must to make sure that her family–even if it is just one of them–will survive.
In class we read the book, Life As We Knew It, by Susan B. Pfeffer. It is about a girl named Miranda who lives in New York with her mom, and brother Matt who is coming home from college. They see on the news that an asteroid is going to collide with the moon, so Miranda, Laura and Johnny throw a party. When the asteroid hits the moon, the moon becomes a lot closer to the Earth. Many world catastrophes start to occur around the world like massive tsunamis, tornadoes and lightning storms. What I will be talking about is my favorite scenes from the story.
"Life as We Knew It," is a book by Beth Pfeffer, which is known to be science fiction. The story involves environmental changes, which involves science but can be fictional as well because it is not likely to happen in reality. So this story was written by Beth Pfeffer and she had decided to write this book after watching a show about a meteor. She asked herself, what it would be like to be a teenager living in a catastrophe. Beth later came up with the story, writing it as a 16 year old girl's diary. The story first main point starts out with everyone getting ready to watch a meteor pass and ends up hitting the moon.
"The Gift of Life" is a book written by Bonnie Glass-Coffin. This book is a make up from what Ms. Glass-Coffin experienced while she was in Peru. She observed male and female shamans who did many different types of healing rituals. Ms. Glass-Coffin stated that she believes that women shamans are more often know to involve their patients into what they are doing in their healings where as men get in and out to do the fight. In this though I will be looking at an overview of the chapters and going into some detail about what that chapter was about or explaining.
As we grow older, we are promised our parents will always love us no matter how difficult love may be. Jeannette Walls lived a world of an alcoholic father fleeing when he was needed most, an almost careless mother who often fantasized her life without the four children she “loves”, and always bullied for how poor or skinny she appears. Jeannette and I are similar through the close connection we have with our fathers and we are different by how we grew up.
Understanding the Canadian healthcare system and how social, economic, political and cultural aspects are involved within the organization has always been an interest of mine since before enrolling in this course. In high school, we were taught that our universal healthcare system was one of the best in the world and worthy of praise, however this course touches on many more aspects of our healthcare system that allows students to absorb a wide range of in depth and insightful information. After reading the book Staying Alive by Toba Bryant, Dennis Raphael, and Marcia Rioux, and learning about many different topics in regards to the Canadian healthcare system, I have come to the conclusion that I wasn’t so knowledgeable on this topic as I thought
The weather is an extremely powerful force that can change lives and the way tasks work. Anyone from the book Life As We Knew It by Susan Beth Pfeffer would agree with that statement, especially Miranda. Miranda and her family's lives were completely changed when the moon was knocked out of orbit. The weather forced people to learn new stuff and Miranda was no exception. She needed to concentrate on a “second education”.
2. Biotechnology means "the exploitation of biological processes for industrial and other purposes, especially the genetic manipulation of microorganisms for the production of antibiotics, hormones, etc." This basically gives off what Biotechnology is. In simpler terms Biotechnology studies living organisms and how it could b useful to us humans. The knowledge analyzed from the organisms allows researches and scientist to transfer genes between other cells and different organisms. The use of this is to help analyze these things to produce products that would be useful for the economy. There is two basic Biotechnologies and these are Traditional Biotechnology
Binary Fission is a type of Asexual Reproduction when the whole parental body is the actual reproductive unit. The Nucleus, and the Cytoplasm of the parent organism create an exact copy of itself, which splits into two. Then, the parental cell separates itself into two daughter cells, which then grow to full size, and split
Biotechnology is an area of science in which nature is used for the benefit of humans. In biotechnology, scientists manipulate nature to better suit it for human application. One way that scientists manipulate nature is by genetically engineering living organisms. Genetic engineering can help humans by curing diseases and making food more nutritious among other benefits. Genetic engineering is accomplished by taking genes from one organism and planting them in another. In order to genetically engineer, different things are required depending on the organism being engineered. For example, bacteria is an organism that can be genetically engineered. To genetically engineer bacteria, scientists need bacteria, a plasmid, a stressor, an energy source, selection, and regulation. The bacteria is the nature being manipulated. A plasmid is a small DNA molecule that when inserted into a bacteria (or other cell) can change the cell’s DNA by adding to it. A stressor is an external stimulus of some type which causes a stress response. Energy is necessary for any cellular work, so it is necessary for the manipulation of bacteria. Selection shows a selectable marker, which is a favorable trait and also shows whether the DNA has been successfully planted in the bacteria. Regulation shows how a trait can be expressed. An example of a bacteria that can be genetically engineered to glow using these factors is E. coli. The plasmid in this case is pGLO, which gives the E. Coli a
Budding is a type of Asexual Reproduction, when the parental body grows reproductive units on its body, called buds. The buds will eventually grow into a full size organism. In the process of developing, the bud may be separated from the parental cell when growing, or may be separated only after it grows to full size.
PB1: The plot is a major theme of survival as most of the story is about it. In chapter 4 most of the plot was to keep Bibi alive when she steps on the mine as quote “your stepped stupid sister, step on a mine “this show shows the plot is about survival as Bibi tries to survive the potently explosive mine. On page 32 the Jamal parents had to “pack up and leave right now” as they are now fugitives of the government. This shows that the plot conveys a survival element to the plot, as the family has to survive the government. At each point of the plot the character is always trying to survive these events.
Biotechnology, at its simplest is technology based on biology – it employs the use of cellular and bimolecular processes to develop products and technologies. The variety of living cells used for their biochemical talents range from simple singled-cells bacteria and yeast to complex multi-cellular organisms, such as plants and humans. Over the years, biotechnology has been a rapidly developing area of
In contrast, when two individuals mate, the cells go through cell division or meiosis. This allows four daughter cells to produce from the original first cell. Since the offspring has genes and traits from both parents, the offspring will be unique. This is advantageous for evolutionary changes. Since each offspring is unique in their genetic material, some won’t be affected by a disease, such as HIV, AIDS, and viruses, as others might. This allows these offspring to survive. The
The reproduction of fungi can be either sexual or asexual. Sexual reproduction, as with other organisms, involves the fusion of two nuclei when two sex cells unite. This joining produces spores that can grow into new organisms. Asexual reproduction is by fragmentation, cell division, or budding. The simplest process is direct fragmentation, or breaking up, of the fungus body, the thallus. Each of the