SCIENCE EXAM NOTES Organ Systems CELL - Cell Membrane : surrounds the cytoplasm in the plant cell and surrounds the cell in the animal cell - Cell Wall : surrounds Cell - Chloroplast : type of organelle in the plant cell ; Conducts photosynthesis - Golgi Apparatus : modifies‚ sorts‚ and packages proteins and other materials from the cellular endoplasmic reticulum - Mitochondrion : produces energy - Nucleus : regulates all cell activity - Nucleolus : contains the DNA of a cell - Vacuole
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ion salts from rock and minerals on the continents. Leaching and runoff transport these ions from land to the ocean basins where they accumulate in seawater. In conclusion‚ weathering is a process that is fundamental to many other aspects of the hydrosphere‚ lithosphere‚ and biosphere. There are three broad categories of mechanisms for weathering: chemical‚ physical and biological. Products of Weathering The process of weathering can result in the following three outcomes on rocks and
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is Introduction Ferntree gully is an area of the Dandenong national park which is approximately 30 km northwest from central business district which can be seen in figure one. It has the lyrebird walk and the 1000 step walk which are surrounded by residential areas and Burwood high way. Moreover‚ in terms of UTM coordinates Ferntree gully lies at E: 352095 and N: 5805278. Site 1 (E: 351975 and N: 5805566‚ Elevation: 285 meters) is the interaction point of Lyrebird Track and Tree Fern Gully
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UNIT 2: Natural Resources 2.1 INTRODUCTION 2.2 RENEWABLE AND NON-RENEWABLE RESOURCES 2.2.1 Natural resources and associated problems 2.2.2 Non-renewable resources 2.2.3 Renewable resources a. Forest Resources: Use and over-exploitation‚ deforestation‚ case studies. Timber extraction‚ mining‚ dams and their effects on forests and tribal people b. Water Resources: Use and over-utilisation of surface and ground water‚ floods‚ drought‚ conflicts over water‚ dams – benefits and problems. c. Mineral
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MODULE 1: THE CHEMICAL EARTH 3.1.1: Elements in Earth are present mostly as compounds because of interactions at the atomic level * Identify that matter is made of particles that are continuously moving and interacting Matter: anything that has mass and occupies space. Exists in three different states: solid (s)‚ liquid (l) and gas (g) The Particle Theory: “All matter is made up of small‚ indivisible particles called atoms that are continuously moving” | Solid | Liquid | Gas | Particle
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The effects of human activity on ecosystems and biodiversity Agricultural Practice Biodiversity is a measure of the diversity among organisms in different ecosystems. "Diversity" in this definition includes diversity within a species and among species‚ and among ecosystems.’ Monoculture is when a farmer produces or grows one single crop over a wide area. The advantages to the farmer of monoculture are‚ “the reduced plant competition for nutrients‚ space and solar radiation‚ control of unprofitable
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Ecology EQ’s 2. Abiotic and biotic components influence each other. For instance‚ temperature (abiotic factor) can make plants (biotic factor) reproduce more or reproduce less. Also water‚ an abiotic factor‚ has an effect on how animals‚ a biotic factor‚ survive in certain areas of the world. 3. Because a different niche allows multiple species of organisms to coexist. If all organisms had the same niche‚ then there would be heavy competition for food‚ shelter‚ etc. Having different niches gives
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Cited: ‘Hurricanes and the Lithosphere’ (pdf). Challenger Learning Center of St. Louis. November 2011. www.challenger.org/sciencechallenges/climate-change-challenge/. ‘Hurricanes and the Hydrosphere’ (pdf). Challenger Learning Center of St. Louis. November 2011. www.challenger.org/sciencechallenges/climate-change-challenge/. ‘Hurricanes and the Biosphere’ (pdf). Ontario Science Centre. November 2011. www.challenger.org/sciencechallenges/climate-change-challenge/
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Science Study Notes Getting Your Act Together Cell Theory Cells are the basic structural and functional units of life. In multicellular organisms different cells perform different functions. Different types of cells work together so that the organism functions as a co-ordinated whole Unicellular and Multicellular Organisms A multicellular organism is made up of many cells A unicellular organism only has one cell Plant Cell Animal Cell Basic Requirements
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Synopsis Recent decades have been characterized by increasing awareness of environmental issues and the need to come to terms with them. This course will examine‚ in turn‚ many of the current major environmental issues related to the atmosphere‚ the hydrosphere‚ the lithosphere‚ and the biosphere as well as looking at major threats posed by the environment itself in the form of natural hazards. In addition‚ the issue of nuclear threat and the ever-increasing demand for energy are explored. Finally‚ the
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