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EXERCISE NO. 1 Abiotic Factors Affecting Organisms Living organisms occupying a tending(p) habitat are exposed to conditions which are largely outlined by the nature of the physical environment they inhabit. Thus, the various abiotic factors that shit up the environment are the prime determiners of the abundance, distribution and over-all ecology of the biotic units of the ecosystem. The abiotic components are the complex physical factors which include the climatic factors (light, temperature, humidness and wind), the edaphic factors (soil nutrient, pointity and moisture) and the topographic factors (angle of slope and altitude). According to A. G. Tangsley (1935), the biotic components could non be separated from the abiotic with which they form one physical unit, the ecosystem. Objectives: 1.To demonstrate the students with the disparate climatic and edaphic factors. 2.To know the standard procedures used in standard these factors. 3.To determine variations in th e physical environment in a small area consisting of grasses and trees. 4.To identify organisms found in both areas. 5.To analyze how individual organisms respond to their physical environment.

Materials: gradational set up (10m) Thermometer Meter stick Psychrometer Aluminum pans Shovel Soil corer pH meter digital weighing apparatus Gloves Beaker (150 ml) Test tubes trash rod Spatula/ knife Droppers Plastic bags/ taste bags Oven Muffle furnace melting pot or aluminum dish Dessicator Ammonium oxalate 10% HCl Diphenylamine sulfuric acid (H2SO4) Ammonium molybdate Concentrated Nitric acid (HNO3) Distilled weewee 70% ethanol Light source White th! eme Forceps Magnifying lens Small jar or vial Stereomicroscope millimeter ruler Procedure: A.Climatic Factors 1.Choose an area with twain near types of environment (preferably a grassy area adjacent to an area with trees). 2.Lay a...If you emergency to get a abundant essay, order it on our website: BestEssayCheap.com

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