Monday, December 23, 2019

The Three Domains Of Life - 1113 Words

Part A.) List the THREE domains of life. For each domain, include the following: 3 characteristics of the domain and 3 examples of organisms belonging to each domain. The three domains of life are classified as: Eukarya 1) Organisms with eukaryotic cells that include protists, kingdom Plantae, kingdom Fungi, and kingdom Animalia. 2) Protists are mostly single-celled organisms. 3) Kingdom Plantae is represented by plants, which are able to produce their own food. Example: an avocado tree. Kingdom Fungi, is represented by organisms that absorb water and nutrients by decomposing the remains of dead organisms and organic wastes. Example: mushrooms. Kingdom Animalia is represented by animals, which get their food by eating other animals.†¦show more content†¦The image is composed of light and dark areas, however, the image can be colorized to emphasize features. It requires that the column must be a vacuum, and that the specimen must be cut very thin. For these reasons, it is not used study living organism. As a disadvantage, some structures called artifact, can be seen but they are not present in natural specimens. 3. Scanning Electron Microscope-(SEM) it is a type of electron microscope that also uses a magnetic fields within a vacuum tube to manipulate a beam of electrons. The surface of the specimen need to be coated with a metal such as platinum or gold. It is used to observe the surface details of microbes and cellular structures, and this can be a disadvantage since it does not magnify the internal structures of the specimen. It can magnify up to 10,000x with a resolution about 20nm. The resulting image is in 3D and can be enhance with color. 4. Gram staining-it is a technique used to differentiate between Gram-positive cells, which stain purple, and Gram-negative cells, which stain pink. The physical and chemical structures of these cells are different, allowing them to be identified by the used of different dyes. The first step is to color all the cells of the smear by using the basic dye crystal violet for 1 minute. Then iodine is used to bind the dye and make it less soluble, after it is rinse all cell remainShow MoreRelatedCompare and contrast the Five kingdom a797 Words   |  3 Pagesï » ¿Compare and contrast the Five kingdom and three domain classification system Classification is the method used by scientists to order living organisms. All species have a unique classification that results in a binomial name. classification is used to make it easier for different species to be identified by scientists. The current system, the  Three Domain System  , groups organisms primarily based on differences in ribosomal RNA structure. Ribosomal RNA is a molecular building block for  ribosomes  Read MoreCognitive, Social, And Physical Development936 Words   |  4 PagesEducation emphasizes the development of the whole child: Cognitive, social and physical. Some educators emphasize the cognitive domain, neglecting social and physical development. Student learning is enhanced when teachers incorporate the three domains into planning and implementation of curriculum. This paper will investigate how cognitive, social, and physical domains of development are inextricably linked and how they affect the development of the whole child. Cognitive Development CognitiveRead MoreLife Span Human Development Paper748 Words   |  3 Pagesfrom 3/31/10) http://answers.google.com Life Span Perspective Paper : To understand change in life is probably one of the most important aspects of human development. Our perspective on life and understanding the changes that occur during the different stages of the human life is the key to understanding why we tick and operate the way we do. Lifespan perspective is a key to understanding this and is something a person must do basically lifelong. 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We will look at some researchRead MoreLife Span Perspective Paper746 Words   |  3 PagesRunning Head: LIFE SPAN PERSPECTIVE PAPER Life Span Perspective Paper Natalia Pimentel University of Phoenix PSY/375 Andrew Rodriguez September 15, 2009 Life Span Perspective Paper People are constantly changing and developing ever since conception to the day they pass away. Some changes can be more for people depending on the choices and incidents that occurs in a person’s life. The majority of changes that people go through are passed by common biological and psychologicalRead MoreEssay about Human Growth and Development1057 Words   |  5 Pagesgrowth and the life span perspective begin from the day of conception and continue throughout the life span. It is a lifelong process which involves periods and domains of very great importance. 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