ionic‚ polar or covalent will dissolve in it‚ therefore more reactions take place while in solution with water. Often in organisms substances must be in solution and water is the solvent. Plants can only obtain mineral salts in solution and human digestion will only dissolve soluble foods‚ meaning large starch molecules must be broken down into soluble sugars. Also many organisms living in water spend most of their time underwater‚ yet they require oxygen to respire‚ and as water is such a good solvent
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Cells‚ Tissues and Organs of the Digestive System Living organisms all have various functioning systems within the body that enable life processes to be carried out. Each system uses different organs that coordinate with each other to carry out their functions‚ and these systems‚ organs and functions are shown below: Functioning System Related Organs Function Circulatory Heart‚ Arteries‚ Veins Transports blood through the body Digestive Mouth‚ Tongue‚ Pharynx‚ Esophagus‚ Liver‚ Stomach
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IMPORTANCE OF FUNGI IN; MEDICINE INDUSTRY THE ENVIRONMENT {DR OLASEINDE G.} INTRODUCTION Fungi are tremendously important to human society and the planet we live on. They provide fundamental products including foods‚ medicines‚ and enzymes important to industry. They are also the unsung heroes of nearly all terrestrial ecosystems‚ hidden from view but inseparable from the processes that sustain life on the planet. THE MEDICAL IMPORTANCE OF FUNGI Most Fungal genera have tremendous applications
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Negative feedback in living organisms Negative feedback is a principle which is used by the body in order to return systems to its normal level; it does this by turning the corrective measures off. Homeostasis uses the principle of negative feedback in order to maintain a constant internal environment. There are a number of different examples of negative feedback such as thermoregulation‚ regulation of blood glucose and the regulation of water potential. The control of the heartbeat can also use
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VIRUSES Viruses are not classified in any kingdom yet because they are not really alive. They only show signs of life after they infect a host cell. Virus: lifeless particle that does not carry out any METABOLIC functions on its own and CANNOT REPRODUCE on its own until it invades a living HOST cell Viral history: Viral history is relatively short. It begins with the isolation of the human influenza virus in the 1930s and crystallization of the tobacco mosaic virus in 1933‚ and moves through
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Virus vs. Bacteria Similarities – Virus vs. Harmful Bacteria Virus and Bacteria are similar. But yet they are different. Viruses and bacteria can make copies of themselves once they are inside a living organism (“J. L.”). They are both harmful bacteria and viruses. These bacteria and viruses can be helpful to the body. All diseases that people get are from virus and bacteria( Microbe Magic). Bacteria and virus are both microscopic organisms that have the same brain structure that why they are called
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Effect of ions on living organisms (24 marks) An ion is a charged atom or molecule. This is because it does not have an equal amount of protons and electrons‚ therefore giving the atom an overall charge. An example of an ion is ‚ this is sodium and the plus sign represents an overall positive charge. Ions are very important to living organisms as they are essential for life‚ they play an important role within the cell allowing mechanisms within the living organisms such as respiration‚ to take
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Similarities and Differences of discriminatory treatment of African and Asian Americans Even though Asians came to America voluntarily and African Americas were brought involuntarily as slaves (a significant difference)‚ both share similar discrimination experiences at the hands of White Americans fighting to maintain their dominance. Similarities: Unequal pay‚ limited job opportunities as agricultural labors and domestic servants‚ defended the United States in segregated military regiments‚ refused
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Writing Effective Comparison or Contrast Essays A Comparison or Contrast essay is an essay in which you either compare something or contrast something. A comparison essay is an essay in which you emphasize the similarities‚ and a contrast essay is an essay in which you emphasize the differences. We use comparison and contrast thinking when deciding which university to attend‚ which car to buy‚ or whether to drive a car or take a bus or an airplane to a vacation site. In this section‚ two classic
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Similarities and Differences Nowadays‚ people depend more on technologies. Almost everyone has at least one hardware and software. How do people use those technologies and how do they think? Thoughts are different. I read the article “ Hell Is Other iPods” by Caspar Melville and “Someone to Watch Over Me” by Theodora Stites. I found some similarities and differences of those two articles and I would like to share my experience which relates to those two articles. First of all‚ both “ Hell Is
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