COMPUTER BASICS Seema Sirpal Delhi University Computer Centre What is a Computer? An electronic device that stores‚ retrieves‚ and processes data‚ and can be programmed with instructions. A computer is composed of hardware and software‚ and can exist in a variety of sizes and configurations. Hardware & Software The term hardware refers to the physical components of your computer such as the system unit‚ mouse‚ keyboard‚ monitor etc. The software is the instructions that makes the
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Tropical Rainforest Heritage of Sumatra Indonesia The Tropical Rainforest of Sumatra‚ is situated in the middle of the island Sumatra‚ Indonesia‚ and consists of three national parks; Gunung Leuser National Park 8‚629.75 square kilometers (3‚331.97 sq mi)‚ Kerinci Seblat National Park (KSNP) 13‚753.50 square kilometers (5‚310.26 sq mi) and Bukit Barisan Selatan National Park (BBSNP) 3‚568 square kilometers (1‚378 sq mi). The rainforest covers
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Adaptive Radiation Adaptive radiation occurs most often in new environment with a variety of different unfilled niches so that plants and animals that are not adapted to those areas can exploit the resources in the respective niches. Once individuals begin exploiting the new niches‚ mutations that will benefit the species will spread throughout the population via natural selection giving the owners an overwhelming advantage over others without the mutation and throughout evolutionary time
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Themes in the Study of Life Campbell Biology 9th ed. Chapter 1 What is Biology? • Biology is the scientific study of life • Biologists ask questions such as – – – How do multicelled organisms develop? How does the human mind work? How do living things interact in communities? • Life defies a simple‚ one-sentence definition • Life is recognized by what living things do Some Properties of Life • Order • Evolutionary adaptation • Response to environment • Reproduction • Growth and development
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Ecology ➢ Climate is weather conditions of a region like temperature‚ humidity‚ precipitation‚ sunlight pressure‚ winds‚ throughout the year over a period of time ➢ Ecology – is the study of the interactions between organisms and the environment ➢ Abiotic factors –temperature and water ➢ Microclimate – a classification at the small scale variation ➢ Dispersal – movement away fro origin ➢ Macroclimate – a classification at the global and regional level
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Subject Title : Biology Program : Diploma Program (IB) School Year : 2014-2016 Instructor : Jeffrey Joseph Y. Araula‚ MMM NATURE OF THE SUBJECT Biology is the study of life. The first organisms appeared on the planet over 3 billion years ago and‚ through reproduction and natural selection‚ have given rise to the 8 million or so different species alive today. Estimates vary‚ but over the course of evolution 4 billion species could have been produced. Most of these flourished for a
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* Charles Darwin Origin of species by natural selection Theory of natural selection 1. Over production More offspring are produced than can survive 2. Variation There are differences in the traits of these organisms 3. Competition 4. Best adapted survive select agent 5. Reproduce Pass on desirable traits to the next generation Organisms rarely have mutations that can allow the to better adapt to there envirironment. I. Evidence for evolution A. Fossils Remnants of organisms that
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CARIBBEAN EXAMINATIONS COUNCIL Caribbean Advanced Proficiency Examination Biology Syllabus Effective for examinations from May/June 2008 Correspondence related to the syllabus should be addressed to: The Pro-Registrar Caribbean Examinations Council Caenwood Centre 37 Arnold Road‚ Kingston 5‚ Jamaica‚ W.I. Telephone Number: (876) 920-6714 Facsimile Number: (876) 967-4972 E-mail address: cxcwzo@cxc.org Website: www.cxc.org Copyright © 2007‚ by Caribbean Examinations Council The Garrison‚ St
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Freeman‚ Biological Science‚ 4e‚ Chapter 24 24 - Evolution by Natural Selection Learning Objectives: Students should be able to ... • Define evolution‚ fitness‚ and adaptation using the biological definitions. • Describe the nature of the evidence regarding (1) whether species change through time and (2) whether they are related by common ancestry. • Assess whether Darwin’s four postulates are true in any given example‚ explain to a friend why evolution must occur if all four are true‚ and explain
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The relict leopard frog is a species of frog that has been proposed to be on the endangered species list. The leopard frog’s scientific name is lithobates onca. It was originally a member of the genus Rana‚ but in 2008 it was removed and inserted into the Lithobates genus. This species is part of the Ranidae family. The typical frog is 4.48 centimeters in length. The top of the frog is usually a mixture of brown and grey with greenish brown spots on the front side of the body. The colors under the
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