• An Ecosystems Disturbance By A Pollutant
    3,029 words
    'An Ecosystem's Disturbance by a Pollutant Paul Cordova L. Lehr December 11, 1995 Freedman defines a pollutant as 'the occurrence of toxic substances or energy ina larger quality then the ecological communities or particular species can tolerate without suffering measurable detriment' (Freeman, 562). Although the effects of a pollutant on an organism vary depending on the dose and duration (how long administered). The impact can be one of sub lethality to lethality, all dependent upon the factor...
  • Populations Natural Selection And Evolution
    425 words
    Outline how population size can be affected by natality, immigration, mortality and emigration. Natality = + Immigration = + Mortality = - Emigration = - Draw a graph showing the sigmoid shaped population curve. Explain reasons for the exponential growth phase, the plateau phase and the transitional phase between these two phases. Lag Phase o Only a few individuals to breed Exponential Growth Phase o Numbers increase. More individuals are available for reproduction. o Population grows at an ever...
  • Kenya A Paradigm For Sustainable Development
    3,216 words
    Kenya: A Paradigm for Sustainable Development Introduction: The purpose of this paper is to analyze the historical development of Kenyas nature based tourist industry in order to develop a better understanding of the concepts relating to sustainable tourism in the developing world. I will show how past resource management practices has affected tourism carrying capacity. Because of the complicated ness of this paper I will break it down into five sections. In the first section I will define sust...
  • The Competition Between The Two Green Algae
    1,549 words
    Abstract This experiment tested the hypothesis that the pure algae populations of Ankistrodesmus and Chorella will show growth in the number of organisms, and the mixed population will establish a dominant species. Each population should also reach its carrying capacity. All of the populations had the same resources available. The sampling of 0. 5 ml of each population was used to count the number of organisms. A Neubauer slide and microscope will be needed to do this. From this count, determin...
  • Ecology Carrying Capacity
    1,300 words
    In the original Greek 'oi kos' means,' house'. So ecology is 'the study of the house' the place where you live, or the environment which technically includes all those factors, both nonliving and living, that affect an organism. Ecology then is the study of the interactions of organisms in their environment includes both the living (biotic) and physical (abiotic) factors of the environment. It " sal so the science, which formulates and tests hypotheses about environment. Ecology is the relations...
  • Carrying Capacity Population World People
    1,815 words
    Overpopulation is Not the Problem As we sailed into the new millennium, humans crossed a threshold never before witnessed in our species. We flew past the 6 billion mark in number. This is an impressive figure, but not one that we can easily appreciate, unless we are Bill Gates or ExxonMobil. Let's try to understand how incredibly large this number is. Consider that this article has ~9000 letters. Thus, it would take more than 650, 000 copies of it to produce enough letters to represent all huma...
  • Humans Have The Right To Enjoy Natural World People Population
    1,243 words
    Humans Have The Right To Enjoy Natural Humans Have The Right To Enjoy Natural Beauty Do you feel that all humans have the right to enjoy natural beauty? The right to decent, uncrowded shelter? The right to eat healthy food and drink pure water? To breathe clean air and avoid pesticide poisoning? Most people would say every human has a right to all of these things, but in some areas of the world these rights are not being met. Most species have a sideways "S's hoped graph reflecting growth rate, ...