Food Web Diagram The African Grasslands are areas where the vegetation is dominated by grasses and other herbaceous (non-woody) plants. Grasslands cover nearly 50 percent of the land surface of the continent of Africa. While grasslands in general support diverse wildlife‚ given the lack of hiding places for predators‚ the African Savannah regions support a much greater diversity in wildlife than do temperate grasslands. The root systems of perennial grasses and forbs form complex mats that
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TYPES OF DATA FLOW DIAGRAM: LOGICAL DFD PHYSICAL DFD Data Flow Diagrams (DFDs) are categorized as either logical or physical. A logical DFD focuses on the business and how the business operates. It describes the business events that take place and the data required and produced by each event. On the other hand‚ a physical DFD shows how the system will be implemented. Design Feature Logical Physical What the model depicts How the business operates How the system will be implemented
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Pher Pher A data flow diagram (DFD) is a graphical representation of the "flow" of data through an information system‚ modeling its process aspects. Often they are a preliminary step used to create an overview of the system which can later be elaborated.[2] DFDs can also be used for the visualization of data processing (structured design). A DFD shows what kinds of data will be input to and output from the system‚ where the data will come from and go to‚ and where the data will be stored. It
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early 1990’s that advised consumers that there had been no danger associated with consuming foods containing Genetically Modified Organisms (GMOs) therefore no “safety” studies were necessary. The FDA furthermore made the ruling that the labeling of GMO foods was not mandatory in the year 2000. In 1992 a lawsuit against the BIOTECH community released 44‚000 secret internal memos into the public domain showing that not only where GMOs dangerous‚ they were less nutritious than non-GMO food‚ they had been
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Use case diagram A use case diagram at its simplest is a representation of a user’s interaction with the system that shows the relationship between the user and the different use cases in which the user is involved. A use case diagram can identify the different types of users of a system. The different use cases and will often be accompanied by other types of diagrams as well. Figure 5.2: Use case Diagram 5.3 Use Case Analysis 5.3.1 Activity Diagram The following activity diagram represents
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How microscopes have contributed to our understanding of living organisms There are 2 types of microscopes these are; light microscope and electron microscope. Light microscopes use a beam of light however the resolution is lower than the electron microscope so the image is not clear‚ however they can view living organisms. These types of microscopes are used in schools to view simple cellular structures‚ which is good to teach simple biology Mitosis and meiosis can be seen with light microscopes
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Genetically Modified Organisms were developed in the mid-1990s. Since they were first created‚ there have always been people who have been against them. These people have made false claims using faulty scientific researches. This research paper will prove that Genetically Modified Organisms should not be feared and should be widely used around the world. This will be done by proving that Genetically Modified Organisms do not present health hazards‚ reduces the impact of the environment‚ and makes
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All organisms that are considered to be alive must possess certain key characteristics or functions. These include: order‚ response to the environment‚ reproduction‚ growth and development‚ regulation‚ energy processing and evolution. Since we recognize life by what living things do‚ these seven characteristics serve to define life. Organisms consist of one or more cells and while they may be very complex they are highly organized and coordinated. Inside each cell‚ atoms make up molecules.
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Create an activity diagram for the following system. Of-the-Month Club (OTMC) is an innovative young firm that sells memberships to people who have an interest in certain products. People pay membership fees for one year and each month receive a product by mail. For example‚ OTMC has a coffee-of-the-month club that sends members one pound of special coffee each month. OTMC currently has six memberships (coffee‚ wine‚ beer‚ cigars‚ flowers‚ and computer games)‚ each of which costs a different amount
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in our natural environment. If our internal body temperature was to rise or fall even a few degrees centigrade our body would not be able to carry out its everyday functions efficiently and this could lead to loss of ability to function at all. Therefore thermoregulation is very important and water plays a part in this. One method of reducing internal body heat is sweating; sweat is mostly made up of water. The structure of the water molecule means that it has very high melting and boiling points
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