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Evolutionary biology

DBQ Guidelines

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DBQ Guidelines H ? Historical Context Give in the intro paragraph I ? Intended Audience P ? Purpose P ? Point of View O ? Outside Information Synthesis ? connecting to other historical time periods/events In conclusion paragraph, connect topic to another event (?The influence of this event has been felt in numerous Supreme Court decisions since then?) Provide one of these for every document Do not ever quote from document Give name of document being cited
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BIO152 Lecture 12 Darwin and Natural Selection

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Lecture 12-13 BIO152 Darwin and Natural Selection L12 mimicry means similar to something else mimicry can be shape and just not behavior mimic octopus is an example, it mimics a number of poisonous sea animals shape, behavior and colour chromataphors- changes shape , not just colour but patters uniform-little or no contrast moderate- destructive- to interfere with the colour that the actuall organism is octopus is colour blind but because of chromataphors not just matching colour behind you but the texture lyer bird makes sounds that they hear in their environment **Fig 23.13 Less than 35 years Think-Pair-Share Q: Where did antibiotic resistance gene come from?

BIO152 Lecture 12 The Origin of Species

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Lecture 16-17 BIO152 The Origin of Species L16 flightless : can?t fly but its a really good swimmer Biological species concept states a species is group whose members have potential to interbreed in nature and produce viable, fertile offspring mule is viable but not fertile reproductive isolation-barriers that prevent two species from breeding reproductive isolation is classified if it happens before or after fertilization sperm of one species may not be able to fertilize the other- gameric isolation they may be viable in one generation but not the others- hybrid breakdown post zygotic barriers have to do with hybrids beluga seal intrasextual- inflates balloon to warn of males if they approach and use his balloon again to attract female (intersextual)

Chapter 4 outline

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Chapter 4 Evolution and Biodiversity Summary 1. Life emerged on the earth through two phases of development: a chemical evolution of the organic molecules, biopolymers, and systems of chemical reactions to form the first cells and the biological evolution from single-celled prokaryotic bacteria to single-celled eukaryotic creatures, and then to multicellular organisms. 2. Evolution is the change in a population?s genetic makeup over time. Evolution forces adaptations to changes in environmental conditions in a population. The diversity of life on earth reflects the wide variety of adaptations necessary and suggests that environmental conditions have varied widely over the life of the earth.

Chapter 1 Powerpoint

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Chapter 1 Exploring Life Overview: Biology?s Most Exciting Era Biology Is the scientific study of life The phenomenon we call life Defies a simple, one-sentence definition Figure 1.1 We recognize life By what living things do Some properties of life Figure 1.2 (c) Response to the environment (a) Order (d) Regulation (g) Reproduction (f) Growth and development (b) Evolutionary adaptation (e) Energy processing Concept 1.1: Biologists explore life from the microscopic to the global scale The study of life Extends from the microscope scale of molecules and cells to the global scale of the entire living planet A Hierarchy of Biological Organization The hierarchy of life Extends through many levels of biological organization

Living in the Environment 16th Ed. : Ch.9 Key Terms

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Chapter 9 background extinction During most of the 3.56 billion years that life has existed on the earth, there has been a continuous, low level of extinction of species known as background extinction. endangered species has so few individual survivors that the species could soon become extinct over all or most of its natural range (the area in which it is normally found). extinction rate expressed as a percentage or number of species that go extinct within a certain time period such as a year. HIPPCO Habitat destruction, degradation, and fragmentation;?Invasive (nonnative) species;?Population and resource use growth (too many people consuming too many resources);?Pollution;?Climate change; and?Overexploitation. instrumental value

Living in the Environment 16th Ed. : Ch.4 Key Terms

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Chapter 4 adaptation, or adaptive trait any heritable trait that enables an individual organism to survive through natural selection and to reproduce more than other individuals under prevailing environmental conditions. background extinction Throughout most of history, species have disappeared at a low rate, called background extinction. biological diversity, or biodiversity the variety of the earth?s species, the genes they contain, the ecosystems in which they live, and the ecosystem processes such as energy flow and nutrient cycling that sustain all life. biological evolution the process whereby earth?s life changes over time through changes in the genes of populations. differential reproduction

Intro to Evolution and Evolutionary Genetics: Overview

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Cell Cycle cancer is the cell cycle going out of control most animal species are diploid cell division is a part of the cell cycle DNA is just the one molecule when you see chromosomes in a condensed state, DNA replication has already occurred cell division time varies according to cell type, but takes about 24h on average Meiosis ?How does meiosis affect genetic content?? asexual reproduction is quick and efficient transition to haploid occurs at anaphase II chiasma: crossing over 2n: number of possible chromosomal recombinations Genetics Problems note ratio - see if epistasis is occurring outside members of the genetic line can bring mutated alleles for carrier questions, discard affected genotypes from Punnett square (setting a limit)

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