Title
... Title: Biology Digital Agenda Date: 2/23-2/24/2012 Essential question(s): (complete the weekly reflection at the bottom of the last page.) 1.) What are the sources of evidence for evolution? 2.) Is there enough scientific evidence to prove evolution as a theory? 3.) How do genetic changes in a gene ...
... Title: Biology Digital Agenda Date: 2/23-2/24/2012 Essential question(s): (complete the weekly reflection at the bottom of the last page.) 1.) What are the sources of evidence for evolution? 2.) Is there enough scientific evidence to prove evolution as a theory? 3.) How do genetic changes in a gene ...
NOTES: CH 22 - Evolution Evidence / Darwin
... -The former proposed that body parts used extensively to cope with the environment became larger and stronger, while those not used deteriorated. -The latter proposed that modifications acquired during the life of an organism could be passed to offspring. -Example: long neck of the giraffe (individu ...
... -The former proposed that body parts used extensively to cope with the environment became larger and stronger, while those not used deteriorated. -The latter proposed that modifications acquired during the life of an organism could be passed to offspring. -Example: long neck of the giraffe (individu ...
Evolution – change over time
... Evolution – change over time • Populations evolve not individuals • Adaptations – Inherited traits that enhance survival and thus reproduction in a particular environment ...
... Evolution – change over time • Populations evolve not individuals • Adaptations – Inherited traits that enhance survival and thus reproduction in a particular environment ...
Evolution Review
... How is fossil age related to position in the rock layers? 7) Compare natural and artificial selection ...
... How is fossil age related to position in the rock layers? 7) Compare natural and artificial selection ...
Natural Selection
... • nucleotide sequencing studies are used to indicate levels of ______________among species within major taxonomic groups ...
... • nucleotide sequencing studies are used to indicate levels of ______________among species within major taxonomic groups ...
Evolution – Just A Theory?
... – Identify relationships between groups of organisms – Species: groups of organisms based on physical resemblances and ability to interbreed – Created system of classification - taxonomy ...
... – Identify relationships between groups of organisms – Species: groups of organisms based on physical resemblances and ability to interbreed – Created system of classification - taxonomy ...
Intro and Chapter 1
... – Shook the deepest roots of Western culture – Challenged a worldview that had been prevalent for centuries ...
... – Shook the deepest roots of Western culture – Challenged a worldview that had been prevalent for centuries ...
Mechanism of Evolution
... Apart from organisms such as certain types of sharks, cockroaches or ferns, many living organisms today have no identical form in the fossil record. ...
... Apart from organisms such as certain types of sharks, cockroaches or ferns, many living organisms today have no identical form in the fossil record. ...
Evolution - Pleasantville High School
... Upper strata generally contain fossils of younger, more complex organisms, whereas, the lower strata contain fossils of simpler life forms. This means there is a tendency toward increasing complexity in ...
... Upper strata generally contain fossils of younger, more complex organisms, whereas, the lower strata contain fossils of simpler life forms. This means there is a tendency toward increasing complexity in ...
Evolution is
... for one species to survive against another • Jean-Baptiste Lamarck -1809believed that all life forms evolved and that the driving force of evolution was the inheritance of acquired characteristics. He believed that organisms changed due to the demands of their environment. ...
... for one species to survive against another • Jean-Baptiste Lamarck -1809believed that all life forms evolved and that the driving force of evolution was the inheritance of acquired characteristics. He believed that organisms changed due to the demands of their environment. ...
evol2010 - Fredericksburg City Public Schools
... – 3) Cenozoic-mammals evolved adaptations to allow them to live in various environments ...
... – 3) Cenozoic-mammals evolved adaptations to allow them to live in various environments ...
File
... sequences of amino acids in the protein hemoglobin. Hemoglobin is used in all organisms to deliver oxygen to the tissues, but there are slight differences among the species. 9. Which two species would to share the closest common ancestor? Why? ________________________________ _______________________ ...
... sequences of amino acids in the protein hemoglobin. Hemoglobin is used in all organisms to deliver oxygen to the tissues, but there are slight differences among the species. 9. Which two species would to share the closest common ancestor? Why? ________________________________ _______________________ ...
Natural selection - Fredericksburg City Public Schools
... – 3) Cenozoic-mammals evolved adaptations to allow them to live in various environments ...
... – 3) Cenozoic-mammals evolved adaptations to allow them to live in various environments ...
Biology Pre-Learning Check
... 29. Miller and Urey did an experiment to show how life may have first formed on Earth. Describe their experiment and how they thought life first arose. Started with a mix of gases similar to ...
... 29. Miller and Urey did an experiment to show how life may have first formed on Earth. Describe their experiment and how they thought life first arose. Started with a mix of gases similar to ...
Document
... Captain: Charles Darwin Ship: H.M.S. Beagle Destination: Voyage around the world. Findings: evidence to propose a ...
... Captain: Charles Darwin Ship: H.M.S. Beagle Destination: Voyage around the world. Findings: evidence to propose a ...
The Theory of Evolution
... • Scientists now know that DNA and genes are involved • Isolation – when two populations can not breed – over time leads to different species • ex. Grand Canyon squirrels (438) ...
... • Scientists now know that DNA and genes are involved • Isolation – when two populations can not breed – over time leads to different species • ex. Grand Canyon squirrels (438) ...
File
... reviewed evidence that points to the notion that every species, living or extinct, must have descended by reproduction from preexisting species and that species must be able to change over time. Darwin was not the first person to present this idea but rather was the first to argue that al species ha ...
... reviewed evidence that points to the notion that every species, living or extinct, must have descended by reproduction from preexisting species and that species must be able to change over time. Darwin was not the first person to present this idea but rather was the first to argue that al species ha ...
species selection
... If there are trends, it still does not mean that evolution is ‘goal-oriented’ - evolution acts by favoring those forms that have a competitive advantage in particular environment at particular time, NO foresight ...
... If there are trends, it still does not mean that evolution is ‘goal-oriented’ - evolution acts by favoring those forms that have a competitive advantage in particular environment at particular time, NO foresight ...
chapter 22 descent with modification: a darwinian view of life
... 14. Explain how Reverend Thomas Malthus' essay influenced Charles Darwin. 15. Distinguish between artificial selection and natural selection. 16. Explain why the population is the smallest unit that can evolve. 17. Using some contemporary examples, explain how natural selection results in evolutiona ...
... 14. Explain how Reverend Thomas Malthus' essay influenced Charles Darwin. 15. Distinguish between artificial selection and natural selection. 16. Explain why the population is the smallest unit that can evolve. 17. Using some contemporary examples, explain how natural selection results in evolutiona ...
File
... 1. Evolution- change over time; the process by which modern organisms have descended from ancient organisms. 2. Fossil- preserved remains or traces of ancient organisms. 3. Homologous structures- structures that are similar in different species of common ancestry. 4. Vestigial structure- structure t ...
... 1. Evolution- change over time; the process by which modern organisms have descended from ancient organisms. 2. Fossil- preserved remains or traces of ancient organisms. 3. Homologous structures- structures that are similar in different species of common ancestry. 4. Vestigial structure- structure t ...
Evolution #1
... An acquired trait is a change in an individual organism's structure or function that occurs during the lifetime of the organism, caused by injury, disease, or environmental factors, and that is not inherited by future generations. It is not coded in the organism's DNA and is a product of the environ ...
... An acquired trait is a change in an individual organism's structure or function that occurs during the lifetime of the organism, caused by injury, disease, or environmental factors, and that is not inherited by future generations. It is not coded in the organism's DNA and is a product of the environ ...
Evolution & Natural Selection
... Survival of the “Fittest” – Fitness results from adaptations that give an organism advantages for survival. The most “fit” organisms will survive and reproduce; passing along the advantageous characteristics to their offspring. These changes can only be seen after many generations! ...
... Survival of the “Fittest” – Fitness results from adaptations that give an organism advantages for survival. The most “fit” organisms will survive and reproduce; passing along the advantageous characteristics to their offspring. These changes can only be seen after many generations! ...
Misconceptions About Evolution
... and explanations adjusted when necessary. • We do know a great deal about: – The history of life – The pattern of lineagesplitting through time – The mechanisms that caused these changes ...
... and explanations adjusted when necessary. • We do know a great deal about: – The history of life – The pattern of lineagesplitting through time – The mechanisms that caused these changes ...
Transitional fossil
A transitional fossil is any fossilized remains of a life form that exhibits traits common to both an ancestral group and its derived descendant group. This is especially important where the descendant group is sharply differentiated by gross anatomy and mode of living from the ancestral group. These fossils serve as a reminder that taxonomic divisions are human constructs that have been imposed in hindsight on a continuum of variation. Because of the incompleteness of the fossil record, there is usually no way to know exactly how close a transitional fossil is to the point of divergence. Therefore, it cannot be assumed that transitional fossils are direct ancestors of more recent groups, though they are frequently used as models for such ancestors.In 1859, when Charles Darwin's On the Origin of Species was first published, the fossil record was poorly known. Darwin described the perceived lack of transitional fossils as, ""...the most obvious and gravest objection which can be urged against my theory,"" but explained it by relating it to the extreme imperfection of the geological record. He noted the limited collections available at that time, but described the available information as showing patterns that followed from his theory of descent with modification through natural selection. Indeed, Archaeopteryx was discovered just two years later, in 1861, and represents a classic transitional form between dinosaurs and birds. Many more transitional fossils have been discovered since then, and there is now abundant evidence of how all classes of vertebrates are related, much of it in the form of transitional fossils. Specific examples include humans and other primates, tetrapods and fish, and birds and dinosaurs.The term ""missing link"" has been used extensively in popular writings on human evolution to refer to a perceived gap in the hominid evolutionary record. It is most commonly used to refer to any new transitional fossil finds. Scientists, however, do not use the term, as it refers to a pre-evolutionary view of nature.