Sunday, May 17, 2020

Essay about Bio 101 Evolution Lab - 900 Words

Evolution Lab BIO/101 Pooja Thakur 7-23-12 Evolution Resulting From Natural Selection INTRODUCTION The Evolution Lab simulates environmental situations to determine effects on evolution over periods of time. This lab experiments with the evolution of finches on two different islands over 100, 200, and 300 years. By manipulating parameters that influence natural selection, the effects that natural selection have on the evolution process can be studied. HYPOTHESES †¢ The size of the island will influence the population. †¢ The amount of precipitation will influence beak size. †¢ Variances in beak size will influence beak size. MATERIALS The materials needed for this experiment consist of a computer and†¦show more content†¦This test was also run for 300 years then the data was collected. DATA Test 1 |Parameter |Darwin Island |Wallace Island | |Initial Beak Size |12 mm |12 mm | |Heritability |0.7 |0.7 | |Variance |1 |1 | |Clutch Size |10 eggs |10 eggs | |Precipitation |20 cm |20 cm | |Population |200 birds |200 birds | |Island Size |0.5 km |1 km | | |Results | | |Year |Darwin Island |Wallace Island | |2096 |578 |1107 | |2196 |632 |1236 | |2296 |689 |1458 | [pic] DATA Test 2 |Parameter |Darwin Island |Wallace Island | |Initial Beak Size |12 mm |12 mm | |Heritability |0.7 |0.7 | |Variance |1 |1 | |Clutch Size |10 eggs |10 eggs | |Precipitation |20 cm |40 cm | |Population |200 birds |200 birds | |Island Size |0.5 km |0.5Show MoreRelatedEssay on Evolution of the Finch on Darwin Wallace Island832 Words   |  4 PagesEvolution of the finch on Darwin amp; Wallace Island Wendy Chavez Principals of Biology/BIO 101 12/10/2012 Michael Erickson University of Phoenix Evolution of the finch on Darwin amp; Wallace Island A small population of finches have been discovered on Darwin and Wallace Island. The population is 200 finches at Darwin Island, and 200 finches at Wallace Island. The year is 1997, and scientist measured the finch beak size from both Darwin and Wallace Island. The finches from both islandRead MoreBio 101 Lab Report Essay examples1012 Words   |  5 PagesInfluencing Natural Selection Influencing Natural Selection BIO/101 Influencing Natural Selection Introduction/Purpose The purpose of this experiment is to test the hypothesis that small bird’s physical characteristics can greatly impact their species population growth over time. Using the Finch as a test subject for multiple trial runs on a simulated computer system we can alter the characteristics of the finch and run diagnostics for two completely different locations and setRead MoreSex-Linked Traits Through Meiosis and How It Relates to Genetics.1609 Words   |  7 Pages | | |College of Natural Sciences | | |BIO/101 | | |Principles of Biology | Copyright  © 2011, 2010Read MoreGenetics And The Unknown Cross1190 Words   |  5 Pagesmoistened. The vial was set aside for a few minutes to ensure the media was completely hydrated. Additional water was added if found necessary for proper hydration. One to two grains of yeast were added to the tube as a supplied food source for the lab flies. The tube was closed off with cotton and sat for five minutes. To confirm the solidity of the media, the tube was tipped sideways. It is important the media is solid enough so that it does not spill when the tube is tipped or else the flies willRead MoreBiology 101 Review Essay1102 Words   |  5 PagesBio 101 Review Sheet Test #1 (Chapters 1-3) Chapter 1 1. Cell is basic unit of life 2. Hierarchy of life figure 3. 3 Energy categories and examples of each Producer-plants and some microbes Consumer-humans and other animals Decomposer-fungi and other animals 4. Energy transfers are not 100% efficient – why? Cant capture all of the energy supplied by one source a. Where does all energy for biology come from? sun 5. Homeostasis- state of internal consistency or equilibrium Read MorePercipitation Levels and the Affects to Beak Size Essay915 Words   |  4 PagesPrecipitation Levels and the Affects to Beak Size Dixie Woodard BIO/101 November 22, 2010 Alison Barrett Precipitation Levels and the Affects to Beak Size The experiment demonstrates the affect of precipitation levels to the beak size of finches on Darwin Island and Wallace Island. The levels of rainfall not only affect the beak sizes of the finches but also the population over time. The experiments were conducted over a period of three hundred years. The parameters remainedRead MoreEssay on Bio 101 Week 4 Assignment1303 Words   |  6 PagesOrganism Physiology: The Octopus Bio/101 The cephalopodor octopus is a marine organism that inhabits many diverse regions of the ocean. Its food source consists of crabs, small fish, clams, mussels and other marine animals. The octopus is a predatory animal and has developed many skills to aid in its survival in the environment it has adapted to. The octopus has several main organs that are vital to its survival; the brain for its intelligence; the ink sack for its defense; and the arms forRead MorePlato to Darwin to Dna Essay1007 Words   |  5 PagesRaj Maheshwari BIO 11 Lab Professor Lauren Larin Queens College Spring 2016 Plato to Darwin to DNA – A Brief History Dr. Esther I. Muehlbauer This book has been molded to be a breakdown of how various fields in science have progressed over centuries as mankind has advanced. The book starts off introducing the idea that the telling of natural history has changed numerous times as humans have evolved. We also learn to agree that our knowledge has been shaped by the tools available and theRead MoreCharacterization Of Cin11172 Words   |  5 Pagestwo-hybrid (Y2H) screen will be performed first, followed by validation with co-immunoprecipitation (IP). Here, only the fusion constructs specific to Ede1 homolog are needed, as the pGADT7-CIN1 fusion construct was constructed and used previously in our lab {Shen, 2010 #5449; Shen, 2011 #5640; Shen, 2012 #5719}. These tests will help to determine if Cn evolves a unique Cin1-Ede1 endocytic pathway or more than one endocytic pathways are present. 1b. Comparative examination of Cin1 and Ede1 in membraneRead MoreOxygen and Life Essay1199 Words   |  5 PagesBio Lab 101 Smithsonian Laboratory Early Atmosphere 1. How abundant was oxygen in the early atmosphere? The earth’s early atmosphere contained only small amounts of free oxygen, produced by the reaction of water vapor with sunlight. The oxygen rich atmosphere that developed later and on which oxygen breathing life now depends was result of the origin and spread of organisms capable of photosynthesis. 2. What evidence do scientists have that the oxygen content of our atmosphere has increased

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.