AP/IB 11 Biology Origins of Life on Earth There are multiple theories as to how life began on earth‚ beginning with the findings of various revolutionary scientists. This paper will discuss various scientists’ theories and experiments as they strove to discover how life began‚ and the processes that might have occurred in order to develop and create the world we are now familiar with today. Recent discovered functions of RNA have suggested that RNA provides a crucial framework in the evolution
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What are the origins of life on Earth? This question has been highly debated by scientists for a long time. Scientists are trying to determine what makes Earth so unique that life thrives here but in no other planets that we are aware of. There are several theories that scientists have proposed in trying to determine the origins of life on Earth. Some theorize that life derived from an extraterrestrial source‚ others believe autotrophs were the source‚ and other groups hypothesizes that heterotrophs
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The Earth is one of eight major planets and a host of minor planets that circle a fairly average‚ middle-aged‚ main-sequence star. It formed from the accretion of residual material from the gravitational collapse of the solar nebula that produced the Sun. Based on their specific distances from the Sun‚ the planets formed into groups of similar chemical compositions‚ sizes‚ and densities. The four smaller inner planets are of higher density and are composed of a mixture of rock and metal. In contrast
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ORGANIC MACROMOLECULES 1. What is a polymer? 2. Man-made polymers have been studied since 1832. Today‚ the polymer industry has grown to be larger than the aluminum‚ copper and steel industries combined. Polymers already have a range of applications that far exceeds that of any other class of material available to man. Give examples where polymers are applied in each of these categories: a) Agriculture b) Medicine c) Consumer Science
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Title: Benedict ’s test for Reducing Sugars Testable Question: Are all carbohydrates reducing sugars? Hypothesis: If the carbohydrate contains available ketone or aldehyde molecules then they are reducing sugars. Variables: a. Independent: Function groups react w/ reagent b. Dependent: Color change (red‚ orange‚ yellow) Control: Water Materials: - 4 mL of each solution (Water‚ Starch‚ Glucose‚ Maltose‚ Sucrose‚ Onion Juice‚ Potato slice‚ Milk) - 8 test tubes
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Organic Chemistry Project: Designing molecules In order to understand the complexity and shape of an organic molecule you and your partner will be constructing a 3-D version of a selected organic compound. The project will have four parts: A blueprint of the molecule you will construct The molecule A legend explaining the structure of the molecule A paragraph explaining the importance of the molecule This project will count as one lab grade. A sample grade sheet is on the back.
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The Search for Life in the Cosmos Are we alone? For generations‚ humans have asked this question as they looked to the stars for answers. Never have we been so close to finding an answer‚ as we are today. In the field of Astrobiology‚ the search for extraterrestrial life is the top priority‚ and scientists are going to great lengths to find it‚ studying life here on Earth to better understand how it might arise in the universe‚ then scouring the cosmos for any hint of a potentially habitable environment
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Origin of Earth and Evoluation of the Environment MODULE - 1 Environment through Ages 1 ORIGIN OF EARTH AND EVOLUTION OF THE ENVIRONMENT We live on a beautiful planet called earth‚ along with a wide variety of plants‚ animals and other organisms. Our earth‚ however‚ is part of a vast universe. The universe is about 15 to 20 billion years old. The age of the earth is approximately 4 to 5 billion years‚ while human beings evolved only around 2 million years ago. In this lesson‚ you shall learn
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Ellen Grant Honors Bio I Organic Compounds Problems and Objectives: The purpose of this lab was to select the suitable test for an organic molecule and define the safe process for that test. An organic molecule is normally found in or produced by living systems. (Unknown Author‚ 2014‚ www.biology-online.org/organic_molecule)In this lab one was supposed to infer the results of the test and be able to identify if major biomolecules are present. You were to analyze a variety of tests including
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THE CHEMISTRY OF ORGANIC MOLECULES I. MACROMOLECULES-large molecules that are composed of smaller molecules and atoms that are bonded together. These are among the largest of all chemical molecules. A. Polymers-the largest of the macromolecules. These are composed of numerous‚ small identical subunits known as Monomers. There are 4 major polymers that are important for living organisms. These polymers are; carbohydrates‚ lipids‚ proteins and nucleic acids. B. Polymers
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