Reading 1 – The Units and Levels of Selection by Samir Okasha (Ch 8‚ A Companion to Philosophy of Biology) Traditional Darwinian View – * Though Darwin treats individual organisms as basic unit of selection‚ other possibilities can be seen * Lewontin (1970) – Natural Selection will operate on any level that exhibits ‘heritable variation in fitness’. * Hence the question of level seems purely empirical – but is not. Historically – * The debate of Levels of Selection can be
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Principles of Biology I Exam 4 Review Questions 1. What is the difference between a genotype and a phenotype? 2. Write the genotype of a homozygous recessive‚ homozygous dominant‚ and heterozygous pea plant using the trait flower color (p). 3. Different versions of a gene are called ____________. 4. Why are there always two alleles present for each gene at a specific locus? 5. True or False. A dominant allele is always written with a capital letter‚ whereas the recessive allele
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Name _____________________________ Regents Biology Period _________ Date ______________________ LAB ____. ANATOMICAL EVIDENCE OF EVOLUTION In our studies of the anatomy and development of animals we have discovered that many living creatures that look quite different on the surface have similarities underneath their skin that suggest that they are related to each other. This is evidence that living creatures have evolved‚ or gradually changed over time. In this lab‚ you will learn about homologous
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ST JOHN’S UNIVERSITY OF TANZANIA FACULTY NATURAL AND APPLIED SCIENCE DEPARTMENT OF BIOLOGY DEGREE COURSE : BSC.EDUCATION COURSE CODE : BL 302 COURSE TITLE : EVOLUTIONARY BIOLOGY NATURE OF WORK : GROUP ASSIGNIMENT YEAR OF STUDY : 3RD YEAR‚ 2nd SEMISTER COURSE INSTRUCTOR: MR MWANANZILA‚ F. PARTICIPANTS S/NO | NAME | REGISTRATION NUMBER | 1 | MWAIPOPO JACKSON | 2009/1393 | 2 | JOHN VENANCE | 2009/1406 | 3 | HALISON YELIKO | 2009/2541 | 4 | ERASTO GASPAR
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Evolution is a Fact and a Theory by Laurence Moran Copyright © 1993-2002 [Last Update: January 22‚ 1993] hen non-biologists talk about biological evolution they often confuse two different aspects of the definition. On the one hand there is the question of whether or not modern organisms have evolved from older ancestral organisms or whether modern species are continuing to change over time. On the other hand there are questions about the mechanism of the observed changes... how did evolution
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Jurmain‚ Kilgore‚ & Trevathan Essentials of Physical Anthropology‚ 7th Edition CHAPTER 2: THE DEVELOPMENT OF EVOLUTIONARY THEORY Learning Objectives After reading Chapter 2‚ you should be able to… 1. Trace the development of theories of biological evolution in light of advances in the natural sciences‚ resulting in part from the age of discovery & exploration 2. Understand Western European world views (e.g.‚ the notions of fixity of species & a general sense of stasis) & how these
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Outline and evaluate the evolutionary explanation for gender roles Gender refers to culturally constructed distinctions between femininity and masculinity. Individuals are born female or male but they become feminine or masculine through complex developmental processes that take many years to unfold. For example‚ women usually look after babies while men are the providers. The evolutionary approach argues that gender role division appears as an adaptation to the challenges faced by the ancestral
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“Yes‚ we are all individuals!” Can evolutionary psychology explain individual differences in personality? It is now a “rule” that “all human behavioural traits are heritable” (Turkeimer‚ 2000. cited in Pinker 2002). Pinker says that when psychologist Eric Turkheimer made this bold claim in 2000‚ he was encapsulating over 40 years of studies that overwhelmingly and robustly support this view‚ and only slightly exaggerating (Pinker 2002). Estimates of the mean heritability for the fundamental
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AS Biology - Unit 1 ------------------------------------------------- Metabolism Metabolism is a term to describe all reaction which is taking place within a cell and is separated into two types which are * anabolic = compounds being built up * catabolic = compounds being broken down ------------------------------------------------- Water The water molecule is a molecule which is made up from 2 hydrogen atoms and 1 oxygen atom. It is bounded by 2 covalent bonds and has is polar.
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with enough time small changes can change to large changes. The fourth is multiplication‚ meaning that evolution doesn’t only produce new species‚ it also produces an increasing number of new species. The fifth tenet is natural selection‚ meaning evolutionary change is not random‚ it follows a selective process. 6. What according to Shermer‚ is “one of the most important and difficult points to grasp about
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