...Biology 2F03: Lecture 1 Chapter 2: Life on Land • • • • • • • • Labs start on the Sept 17 Why horses and cattle help restore Guanacaste forest of Costa Rica? o This forest was in decline for thousands of years, when Indians colonized central America, it caused its decline. o Its regenerated when the Europeans came with the cattle o The trees only produce a new plant after processes: the fallen fruit has to be eaten by a larger animal (mule, or horse or cow) à it has to pass through the body and ends up in a pile of fertilizer only then it can regenerate and produce a tree o Why did it evolve to be depended to this process? § There must be animals there in the past, in the past it was a camel (llama, alpaca). When the Indians came from asia (50000 years ago) these animals went extinct and the tree lost its major dispersal system What is the most obvious foundation of life on land? o Is landà soil Climate defines biomes, the ‘shapes’ of vegetation o Defines the major types of land on earth o Temperature and precipitation to be specific Soils in turn greatly affect the aspects (roots, water, nutrient) à rentention, root attachment, etc. Soil typically form layers (horizontal) retaining a range of physical and chemical layers: o Classification of soil: O= organic, A, B, C Soil horizons: description o O: organic, litter on top, fine litter deeper (gets broken down, hence fine), pollen, dead organisms o A: mineral soil, some organic matter...
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...amplitude height of wave b. wavelength length of a wave c. frequency number of waves per second (Hz) d. period how long a wave lasts when it arrives at a fixed point (measured in seconds) 3. What are radio waves? An electromagnetic wave of a frequency used for long distant communication. 4. Explain the difference between a transverse wave and a longitudinal wave, and give examples of each. In a longitudinal wave, the vibration travels in the same direction that wave travels. Examples of longitudinal waves include: Sound, p-waves (earthquakes) In a transverse wave, the vibration direction is perpendicular to direction that wave travels. Examples include: Light/electromagnetic, (radio, microwave, xray, etc.), water waves, swaves (earthquakes). The major difference between longitudinal and transverse waves is their direction. Longitudinal waves move left to right while transverse waves move up and down. 5. Compare and contrast: light waves vs. sound waves Light waves are transverse and sound waves are longitudinal. Light waves can travel through a vacuum but sound waves cannot. Speed of light is nearly 300 million m/s while sound has a speed of about 340 m/s. 6. What changes the pitch of sound? The frequency of vibration. Faster vibration would cause a higher pitch while slower vibration would cause a lower pitch. 7. Explain how different factors affect the speed of sound? Speed of sound depends on factors such as altitude...
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...wrong. 4 Nonscientific hypotheses may be perfectly reasonable; they are nonscientific only because they are not falsifiable—there is no test for possible wrongness. 5 Galileo showed the falseness of Aristotle’s claim with a single experiment—dropping heavy and lightobjects from the Leaning Tower of Pisa. 6 A scientific fact is something that competent observers can observe and agree to be true; a hypothesis is an explanation or answer that is capable of being proved wrong; a law is a hypothesis that has been tested over and over and not contradicted; a theory is a synthesis of facts and well-tested hypotheses. 7 In everyday speech, a theory is the same as a hypothesis—a statement that hasn’t been tested. 8 Theories grow stronger and more precise as they evolve to include new information. 9 The term supernatural literally means “above nature.” Science works within nature, not above it. 10 They rely on subjective personal experience and do not lead to testable hypotheses. They lie outside the realm of science. 11 Science, art, and religion can work very well together; like strings on a guitar, when played together, the chord they produce can be a chord of profound richness. 12 Science is concerned with gathering knowledge and organizing it. Technology lets humans use that knowledge for practical purposes, and it provides the instruments scientists need to conduct their...
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...diffusion processes in the context of technological innovation, and for which the author studied the chaotic behaviour by means of a series of computer experiments, performed in the eighties of last century by means of the then emerging “micro-computer” technology. 1 P.-F. Verhulst and the Royal Military Academy in Brussels In the year 1844, at the age of 40, when Pierre-Fran¸ois Verhulst on November c 30 presented his contribution to the “M´moires de l’Acad´mie” of the young e e Belgian nation, a paper which was published the next year in “tome XVIII” with the title: “Recherches math´matiques sur la loi d’accroissement de la e population” (mathematical investigations of the law of population growth), he did certainly not know that his work would be the starting point for further research by Raymond Pearl and Lowell J. Reed [10, 11], by the famous A.-J. Lotka [8] and independently by Volterra [16] and later by V.A. Kostitzin [5], in the fields of mathematical biology, biometry, and demography. It was in these M´moires that he introduced a growth model for a...
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...Thirty-Eight Chapter Thirty-Nine Chapter Forty Chapter Forty-One Part Six: The Glasshouse Chapter Forty-Two Chapter Forty-Three Chapter Forty-Four Chapter Forty-Five Part Seven: Crisis Chapter Forty-Six Chapter Forty-Seven Chapter Forty-Eight Chapter Forty-Nine Chapter Fifty Chapter Fifty-One Part Eight: Judgement Chapter Fifty-Two "I even gave up, for a while, stopping by the window of the room to look out at the lights and deep, illuminated streets. That’s a form of dying, that losing contact with the city like that." -Philip K. Dick, We Can Build You Prologue Veldt to scrub to fields to farms to these first tumbling houses that rise from the earth. It has been night for a long time. The hovels that encrust the river’s edge have grown like mushrooms around me in the dark. We rock. We pitch in a deep...
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...like all the other places in the book. But Mr. and Mrs. Cane, their little girl Lucy and their farmhands are fictitious and bear no intentional resemblance to any persons known to me, living or dead. Acknowledgements I acknowledge with gratitude the help I have received not only from my family but also from my friends Reg Sones and Hal Summers, who read the book before publication and made valuable suggestions. I also wish to thank warmly Mrs. Margaret Apps and Miss Miriam Hobbs, who took pains with the typing and helped me very much. I am indebted, for a knowledge of rabbits and their ways, to Mr. R. M. Lockley's remarkable book, The Private Life of the Rabbit. Anyone who wishes to know more about the migrations of yearlings, about pressing chin glands, chewing pellets, the effects of over-crowding in warrens, the phenomenon of re-absorption of fertilized embryos, the capacity of buck rabbits to fight stoats, or any other features of Lapine life, should refer to that definitive work. PART I The Journey 1. The Notice Board CHORUS: Why do you cry out thus, unless at some vision of horror? CASSANDRA: The house reeks of death and dripping blood. CHORUS: How so? 'Tis but the odor of the altar sacrifice. CASSANDRA: The stench is like a breath from the tomb. Aeschylus, Agamemnon The primroses were over. Toward the edge of the wood, where the ground became open and sloped down to an old fence and a brambly...
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...A HISTORY OF THE ENGLISH LANGUAGE COURSE GUIDE Professor Michael D.C. Drout WHEATON COLLEGE A History of the English Language Professor Michael D.C. Drout Wheaton College Recorded Books™ is a trademark of Recorded Books, LLC. All rights reserved. A History of the English Language Professor Michael D.C. Drout Executive Producer John J. Alexander Executive Editor Donna F. Carnahan RECORDING Producer - David Markowitz Director - Matthew Cavnar COURSE GUIDE Editor - James Gallagher Design - Ed White Lecture content ©2006 by Michael D.C. Drout Course guide ©2006 by Recorded Books, LLC 72006 by Recorded Books, LLC Cover image: © PhotoDisc #UT088 ISBN: 978-1-4281-1730-3 All beliefs and opinions expressed in this audio/video program and accompanying course guide are those of the author and not of Recorded Books, LLC, or its employees. Course Syllabus A History of the English Language About Your Professor...................................................................................................4 Introduction Lecture 1 ...............................................................................................................5 The Foundations of Language: Brain, Development, Acquisition ......................................................................6 Signs and Meanings: Semantics .........................................................13 Sounds of Language: Phonetics..........................................................20 Sound...
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...Dedicated to St John the Blasphemist Saint of Freakin‟ Awesome Holy Texts Cover Art by MonkeysInACan aka Captain Chris Taylor, Tigger_the_Wing, and Rev. Rowan Redbeard Table of Contents Proclamations of the Councils of Olive Garden.........................................................................1 Second Announcement Regarding Canonical Belief......................................................................2 Third Announcement Regarding Canonical Belief.........................................................................3 The Old Pastament........................................................................................................................4 The Book of Midgets/Midgits.........................................................................................................5 The Creation of Mankind..............................................................................................................14 A Reading From the Book of Fusilli..............................................................................................15 The Book of Penelope....................................................................................................................17 The Book of Linguini.....................................................................................................................20 The Torahtellini Part 2............................................................................................................
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