Phytochemical and Antimicrobial study of Laptedenia pyrotechnica Forssk. Decne from Cholistan desert‚Pakistan. Nadeem Ahmed1‚S.S.Tahir1‚ M.Farman2‚ Asghari Bano1 1 : Department of Plant Sciences‚ Quaid-i-Azam University‚ Islamabad. Pakistan Council for scientific and industrial research‚ H-9‚ Islamabad. 2: Department of Chemistry‚ Quaid-i-Azam University‚ Islamabad. ABSTARCT The present study reveals the chemical composition and antimicrobial activity of extracts of Laptedenia pyrotechnica
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Nowadays‚ people are well equipped with many technology gadgets and items‚ so do I. If I was stranded on a deserted island‚ there would be unlimited things I would like to bring with me. However‚ since I can only bring three things‚ I would carry a knife‚ box of matches and a big jar. I believe those three things would help me surviving in such difficult living condition. First‚ a knife could be utilized in many ways. On such island‚ there could exist lots of wild and dangerous animals or species
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every rock and tree. Thus‚ both men and women can easily gather or hunt for enough food in the immediate surrounding area as opposed to their other counterparts in south Africa. Nevada‚ the driest state in the United States‚ largely consists of desert and semiarid. In spite of these harsh environmental conditions‚ it is home to the Shoshoni‚ a mobile hunter gathering tribe who’s small families travel in dispersed groups in pursue of food where weather is favourable. When abundant resources are
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Chapter 50 Ecology is the scientific study of the interactions between organisms and their environment. Concept 50.1 Ecology is the study of interactions between organisms and the environment Ecology and evolutionary biology are closely related sciences. * Ecology has a long history as a descriptive science. * Modern ecology is also a rigorous experimental science. * Ecology and evolutionary biology are closely related sciences. * Events that occur over ecological time (minutes
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Earth: A Living Planet To care for our planet we must understand how it opperates. Ecology is the study of interactions of organisms with one another and with their physical surroundings. Scientists who study ecology are called ecologists. Earts is a biosphere‚ or a living globe. The biosphere is that part of the Earth in which life exists. Biospheres include all the areas of land‚ air‚ and water on the planet. The biosphere goes about eight kilometers above the Earth’s surface to as far as eight
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represents the ways that life is organized and interacts on our planet. 2. What is ecology? Ecology is the study of organisms and their relationship with their surroundings. Ecologists study the interaction between an organism and its environment. Some ecologists study the interaction of a specific species or habitat; others study the different species that depend on each other (ex. a food web). 3. What is a biome? A biome can be described as an area on our earth that shares the same species‚ climate
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“Out of Africa” or replacement hypothesis – how it is supported‚ what it is Chapter 50 – An Introduction to Ecology and the Biosphere Section A – The Scope of Ecology Ecology – definition Abiotics vs biotic factors Ecological time vs evolutionary time Organismal biology Organism – population – community – ecosystem Community ecology Ecosystem ecology Landscape ecology Rachel Carson – DDT – wrote book “Silent Spring” – know her story Section B1 – Factors Affecting the Distribution
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November‚ 2013 Desert Biome Food Web Diagram Food Web Diagram An ecosystem can be defined as a more or less self-contained function unit in ecology consisting of all abiotic and biotic interactions in a specific area. Flow of energy within an ecosystem is a one-way process; Photosynthesis utilizes
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Biology IB Study Guide 1: Communities and Ecosystems 5.1 Communities and Ecosystems (Core) 5. 1. 1 Define species‚ habitat‚ population‚ community‚ ecosystem‚ and ecology. Species – A species is a group of organisms with similar characteristics‚ which can interbreed and produce viable‚ fertile offspring. Habitat – A habitat is the environment in which a species normally lives or the location of a living organism. Population – A population is a group of organisms of the same species‚ who
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Did you know that the biosphere II is a 7.2 million cubic foot greenhouse? The Biosphere II was made to be a mini- world‚ which was meant to mimic Biosphere I‚ The Earth. The Biosphere II has 7 different biomes including‚ and ocean‚ a desert‚ a savannah‚ a marsh‚ and a tropical rainforest. The biosphere II was originally made for 8 scientists to endure locked inside the Biosphere for two years‚ without any supplies! The plan looked perfect‚ but like everything in life problems quickly appeared
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