Evolution by Natural Selection 19 August 2015 Section A: Summary
... that have a backbone. Archaeologists have also recorded fish that have modified into amphibians. Amphibians modified into reptiles and the reptiles modified into mammals. Fossil evidence supports these progressions. Modification by descent (homologous structures): Anatomical evidence is derived f ...
... that have a backbone. Archaeologists have also recorded fish that have modified into amphibians. Amphibians modified into reptiles and the reptiles modified into mammals. Fossil evidence supports these progressions. Modification by descent (homologous structures): Anatomical evidence is derived f ...
Mader/Biology, 11/e – Chapter Outline
... presented him with a problem when geological evidence of a particular region showed a succession of life forms in the Earth’s strata. d. Catastrophism is the term applied to Cuvier’s explanation of fossil history: the belief that catastrophic extinctions occurred, after which repopulation of survivi ...
... presented him with a problem when geological evidence of a particular region showed a succession of life forms in the Earth’s strata. d. Catastrophism is the term applied to Cuvier’s explanation of fossil history: the belief that catastrophic extinctions occurred, after which repopulation of survivi ...
Historic Context
... • Geology? – The Earth is very old – Slow change can build and result in profound geologic changes over time – Darwin brought work by Lyell (1830) with him on his voyage ...
... • Geology? – The Earth is very old – Slow change can build and result in profound geologic changes over time – Darwin brought work by Lyell (1830) with him on his voyage ...
Evolution
... it, namely Hood Island, as having their shells in front thick and turned up like a Spanish saddle, whilst the tortoises from James Island are rounder, blacker, and have a better taste when cooked.--Charles Darwin 1845 ...
... it, namely Hood Island, as having their shells in front thick and turned up like a Spanish saddle, whilst the tortoises from James Island are rounder, blacker, and have a better taste when cooked.--Charles Darwin 1845 ...
Plate Movements and Continental Growth
... at a convergent boundary. Yet neither of the mountain belts is located near a plate boundary today. Geologic evidence indicates that each range formed in the distant past at a plate boundary that no longer exists. The Appalachian Mountains formed when North America collided with Africa hundreds of m ...
... at a convergent boundary. Yet neither of the mountain belts is located near a plate boundary today. Geologic evidence indicates that each range formed in the distant past at a plate boundary that no longer exists. The Appalachian Mountains formed when North America collided with Africa hundreds of m ...
Gene Pool
... LYELL AND HUTTON - Geologists who proposed that the earth was millions of years old and that geological events such as volcanic eruptions and earthquakes have changed and shaped the earth over long periods of time and continue to do so. THOMAS MALTHUS – An Economist who predicted that if populations ...
... LYELL AND HUTTON - Geologists who proposed that the earth was millions of years old and that geological events such as volcanic eruptions and earthquakes have changed and shaped the earth over long periods of time and continue to do so. THOMAS MALTHUS – An Economist who predicted that if populations ...
CH15 PowerPoint
... 4. Developmental Homologies (Similarities in Embryology) 5. Molecular Homologies (Similarities in DNA sequences) ...
... 4. Developmental Homologies (Similarities in Embryology) 5. Molecular Homologies (Similarities in DNA sequences) ...
File - Schuette Science
... Embryos develop limbs that are structurally similar Evolutionary changes altered the structure and appearance based on their FUNCTION ...
... Embryos develop limbs that are structurally similar Evolutionary changes altered the structure and appearance based on their FUNCTION ...
SBI3U WARM UP 1. Natural Selection is best described as:
... B) How many offspring an organism has the potential to make C) Individuals who are better adapted to their current environment will survive better and pass their traits on to the next generation D) Survival of the fittest E) Both C and D Can you give an example of natural selection occurring? ...
... B) How many offspring an organism has the potential to make C) Individuals who are better adapted to their current environment will survive better and pass their traits on to the next generation D) Survival of the fittest E) Both C and D Can you give an example of natural selection occurring? ...
Darwin and Natural Selection
... processes that shape Earth are uniform through time (Charles Lyell’s theory). ...
... processes that shape Earth are uniform through time (Charles Lyell’s theory). ...
Evolution Review Sheet
... 1. What event marks the end of an era, and the beginning of another? 2. What is thought to have caused the Permian mass extinction? The cretaceous extinction? 3. Define a phylogeny 4. What are the levels of hierarchical classification that were developed by Linnaeus? 5. What is binomial nomenclature ...
... 1. What event marks the end of an era, and the beginning of another? 2. What is thought to have caused the Permian mass extinction? The cretaceous extinction? 3. Define a phylogeny 4. What are the levels of hierarchical classification that were developed by Linnaeus? 5. What is binomial nomenclature ...
Right-click here to
... earliest life forms, such as the trilobite, are complex - not simple. According to Riccardo LeviSetti, trilobite eyes “represent an all-time feat of function optimization.” 4 There is little evidence of significant change or macro evolution for these life forms. Many fossils in their earliest appear ...
... earliest life forms, such as the trilobite, are complex - not simple. According to Riccardo LeviSetti, trilobite eyes “represent an all-time feat of function optimization.” 4 There is little evidence of significant change or macro evolution for these life forms. Many fossils in their earliest appear ...
Population Genetics 2
... • Proposed that mitochondria had enough DNA to exist on their own as a prokaryotic cell billions of years ago • Proposed that chloroplasts existed on their own too • Symbiotic relationship formed between chloroplasts & mitochondria ...
... • Proposed that mitochondria had enough DNA to exist on their own as a prokaryotic cell billions of years ago • Proposed that chloroplasts existed on their own too • Symbiotic relationship formed between chloroplasts & mitochondria ...
Introduction to Animals
... organisms with cells that lack cell walls. • Multicellular (made of more than one cell) • Heterotrophs- organism that obtains food by eating other organisms. – Filter feeders = catch particles of food that drift by in the water. ...
... organisms with cells that lack cell walls. • Multicellular (made of more than one cell) • Heterotrophs- organism that obtains food by eating other organisms. – Filter feeders = catch particles of food that drift by in the water. ...
ICA
... Amazing as it may seem to many people, dinosaurs are a recent phenomenon in Earth’s long history. ...
... Amazing as it may seem to many people, dinosaurs are a recent phenomenon in Earth’s long history. ...
Plant and Animal Adaptations
... • Each kind of animal has adapted over many years to suit their environment. • Animals that do not adapt do not survive or they go somewhere else. ...
... • Each kind of animal has adapted over many years to suit their environment. • Animals that do not adapt do not survive or they go somewhere else. ...
LIFE OVER TIME
... Each population adapts to its environment thru natural selection & develops its own gene pool. Over time the separate groups become so different they can no longer interbreed! (Galapagos Animals) ...
... Each population adapts to its environment thru natural selection & develops its own gene pool. Over time the separate groups become so different they can no longer interbreed! (Galapagos Animals) ...
Mechanisms for Evolution
... Meiosis – genetic variation is increased during crossing over Mutations- spontaneous changes in DNA Genetic Recombination – occurs during sexual reproduction and provides endless source of new variations ...
... Meiosis – genetic variation is increased during crossing over Mutations- spontaneous changes in DNA Genetic Recombination – occurs during sexual reproduction and provides endless source of new variations ...
Indirect Evidence of Evolution
... structure are thought to have followed a process of divergent evolution. Divergent Evolution – the process where to species with the same ancestor have developed different forms and functions as a result of adaptations to different environments ...
... structure are thought to have followed a process of divergent evolution. Divergent Evolution – the process where to species with the same ancestor have developed different forms and functions as a result of adaptations to different environments ...
Unit 7 – Diversity in the Biological World
... B. Reproduction and rearing of offspring require free energy beyond that used for maintenance and growth. Different organisms use various reproductive strategies in response to energy availability. Seasonal reproduction in animals and plants ...
... B. Reproduction and rearing of offspring require free energy beyond that used for maintenance and growth. Different organisms use various reproductive strategies in response to energy availability. Seasonal reproduction in animals and plants ...
discov5_lecppt_Ch17
... • Patterns of growth in the very earliest stages of life can provide evidence of an organism’s evolutionary past • The manner in which an embryo develops, especially at the early stages, may mirror early developmental stages of ancestral forms ...
... • Patterns of growth in the very earliest stages of life can provide evidence of an organism’s evolutionary past • The manner in which an embryo develops, especially at the early stages, may mirror early developmental stages of ancestral forms ...
New B1 B2 B3 Revision
... recall that the sex of a human embryo is determined by a gene on the Y chromosome; understand the link between this gene and the development of sex organs into either ovaries or testes. understand the implications of testing embryos for embryo selection (pre-implantation genetic diagnosis); understa ...
... recall that the sex of a human embryo is determined by a gene on the Y chromosome; understand the link between this gene and the development of sex organs into either ovaries or testes. understand the implications of testing embryos for embryo selection (pre-implantation genetic diagnosis); understa ...
Ch 7 ppt
... Some predictions from the Theory of Evolution Oldest fossil-bearing rocks should have different organisms than more recent rocks There should be fossils connecting orders and classes of descendant organisms. Closely related species should be similar in anatomy, biochemistry, ...
... Some predictions from the Theory of Evolution Oldest fossil-bearing rocks should have different organisms than more recent rocks There should be fossils connecting orders and classes of descendant organisms. Closely related species should be similar in anatomy, biochemistry, ...
a Introduction to Geology
... idea that in a chaotic system, a very small change to that system applied at a certain point in time makes the future change in a very dramatic way. Something as small as a butterfly flapping its wings now might affect the weather system on a global scale six months in the future. ...
... idea that in a chaotic system, a very small change to that system applied at a certain point in time makes the future change in a very dramatic way. Something as small as a butterfly flapping its wings now might affect the weather system on a global scale six months in the future. ...
Evolutionary history of life
The evolutionary history of life on Earth traces the processes by which living and fossil organisms have evolved since life appeared on the planet, until the present day. Earth formed about 4.5 Ga (billion years ago) and life appeared on its surface within 1 billion years. The similarities between all present-day organisms indicate the presence of a common ancestor from which all known species have diverged through the process of evolution. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described.