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PAP Evolution Test Review (MUST BE COMPLETED BEFORE THE
PAP Evolution Test Review (MUST BE COMPLETED BEFORE THE

... MAY OR MAY NOT NEED TO BE ANSWERED ON A DIFFERENT SHEET OF PAPER 1. Describe some of the observations made by Charles Darwin on the Galapagos Islands. 2. Explain Lamark’s theory of Use and Disuse. 3. Define artificial selection and give an example. Define natural selection and give an example. 4. Kn ...
File
File

... fins for swimming. The fin evolved as a structural adaptation, not from a common ancestor. ...
File - wentworth science
File - wentworth science

... It was observed, in the 1800’s, that vertebrate embryos look quite similar to each other in early development  All vertebrates have gill slits at some point in their development. Only fish retain them in adulthood  The plausible explanation is that early forms had these traits and passed the genes ...
Chapter 10 – Principles of Evolution
Chapter 10 – Principles of Evolution

...  Population: All individuals of a species that live in an area. MAIN IDEA: Natural selection explains how evolution can occur.  Fitness: A measure of the ability to survive and produce more offspring relative to other members of the population. There are four main principles to the theory of natur ...
Evidence for change
Evidence for change

... Human appendix useless yet in other mammals, including primates, it is necessary to aid in digestion of high cellulose diet Human external ear muscles still present but useless Humans have tailbones and some babies occasionally have tails Human wisdom teeth vestigial compared to other primates Some ...
Natural Selection and the Evidence for Evolution
Natural Selection and the Evidence for Evolution

... https://www.youtube.com/watch?v=8cn0kf8mhS4 ...
File
File

...  changes over time in domesticated animals or plants that are chosen by breeders Homologous Structures • Homologous structures: Structures that are similar in form but may have different functions, found in different species • Indicates a common ancestor ...
Unit Topic: Evolution and Classification Broad Concept: Evolution
Unit Topic: Evolution and Classification Broad Concept: Evolution

... 1. What is an acquired trait? Do acquired traits change the genotype of an organism? 2. Describe how both Darwin and Lamarck would explain how giraffes got a long neck. 3. Describe the three main sources of variation within a population. 4. If a trait increases an organism’s ability to survive but N ...
Evolution
Evolution

... What does it all mean? • Scientists have combined evidence from fossils, DNA, similar structures, etc to determine evolutionary relationships among species • Branching Tree- a diagram that shows how scientists think different groups of organisms are related ...
Evidence for evolution - Plattsburgh State Faculty and
Evidence for evolution - Plattsburgh State Faculty and

... of change in organisms over ...
Notes ppt. over the evidence of evolution
Notes ppt. over the evidence of evolution

... distributed over the geographical areas of the earth giving evidence to the theory of evolution. It provides knowledge of distribution through geological time on both species and the ecosystem. Speculation, glaciation, extinction and continual drift all provide explanations of how species spread and ...
Bio. 3302 Introduction to Evolution Study Guide Lecture 3: Darwin
Bio. 3302 Introduction to Evolution Study Guide Lecture 3: Darwin

... 2. What was the general route of the H.M.S. Beagle? What did Darwin see that made a big impression on him? 3. Describe some of the interests of Darwin. 4. Describe the Galapagos Islands. Discuss adaptive radiation and the finches that made such a big impression on Darwin. 5. Who was Alfred Wallace? ...
Evolution - Effingham County Schools
Evolution - Effingham County Schools

... Descent with Modification ...
Evolution Test Review
Evolution Test Review

... 8. The whale’s flipper and the arms of a human are examples of (vestigial organs or homologous structures) because they have the same bones but use them for different functions. 9. The hip bones in whales and snakes serve no function, so they are examples of (vestigial organs or homologous structure ...
5.4 Evolution – summary of mark schemes
5.4 Evolution – summary of mark schemes

... F. adapted to different mode of locomotion in particular environment / example of two differences such as bat’s wing and human hand; G. illustrates adaptive radiation since basic plan adapted to different niches; H. the more exclusive the shared homologies the closer two organisms are related; I. ce ...
1 EVIDENCE of EVOLUTION CHAPTER 15.2
1 EVIDENCE of EVOLUTION CHAPTER 15.2

...  these shared embryonic features indicate that vertebrates evolved from a common ancestor  organisms with closely related morphological features have more closely related molecular features ...
Evolution Unit Review
Evolution Unit Review

... 9. The idea that each living species has descended with changes from other species over time is called ________________. A. descent with modification B. struggle for existence C. artificial selection D. acquired traits 10. The natural differences between individuals of a species are referred to as__ ...
Natural Selection PPT
Natural Selection PPT

...  Individuals with traits that are not well suited to their environment either die or leave few offspring.  Evolution occurs when good traits build up in a population over many generations and bad traits are eliminated by the death of the individuals. ...
File
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... an earlier group of organisms, but are reduced and unused in later species  Whales still have a leg bone that is vestigial (whales are mammals that “went back to the water”), snakes have leg-like structures, our tailbone and appendix  Help to see how modern organisms are related to ancestors that ...
Theory of Evolution
Theory of Evolution

... • Ex. Bird and insects have wings, evolved in similar environment but are different species. ...
Chapter 22 Study Guide
Chapter 22 Study Guide

... Descent with modification: Darwin’s initial phrase for the general process of evolution. Evolution: All the changes that have transformed life on Earth from its earliest beginnings to the diversity that characterizes it today. Evolutionary adaptation: An accumulation of inherited characteristics tha ...
Evolution power point - Fort Bend ISD / Homepage
Evolution power point - Fort Bend ISD / Homepage

... Use and Disuse organisms could alter the size or shape of particular organs by using their bodies in new ways ...
Evolution Evidence and Theory
Evolution Evidence and Theory

... • 1. HOMOLOGOUS STRUCTURES: similar features that originated in a shared ancestor – Similar in structure BUT differ in function!! – Ex: penguin, bat, alligator, & human (all derive from the same embryological structures) – These examples i.e. share a fairly recent common ancestor ...
Quiz Key - byrdistheword
Quiz Key - byrdistheword

... b. The zooplankton will become sexually mature at larger sizes c. The predatory fish will evolve poor eyesight so as to preserve their food supply. d. Adult zooplankton will start to reach sexual maturity when they are still relatively small. 15. An important challenge to traditional (pre-1860) idea ...
Name - MrKanesSciencePage
Name - MrKanesSciencePage

... inherited from a common ancestor are called homologous structures. 2. Biologists test whether structures are homologous by studying anatomical details, the way structures develop in embryos, and the pattern in which they appeared over evolutionary history. 3. Similarities and differences among homol ...
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Vestigiality



Vestigiality refers to genetically determined structures or attributes that have apparently lost most or all of their ancestral function in a given species, but have been retained during the process of evolution. Assessment of the vestigiality must generally rely on comparison with homologous features in related species. The emergence of vestigiality occurs by normal evolutionary processes, typically by loss of function of a feature that is no longer subject to positive selection pressures when it loses its value in a changing environment. The feature may be selected against more urgently when its function becomes definitively harmful. Typical examples of both types occur in the loss of flying capability in island-dwelling species.
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