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Chapter 15 Outline
Chapter 15 Outline

... Voyage of the Beagle The Father of Evolution – Describe the importance of Darwin’s trip on the HMS Beagle – Describe what Darwin did on the trip on the Beagle Darwin’ Observations Patterns of Diversity Living Organisms and Fossils ...
On Evolution…
On Evolution…

... Small changes in the DNA of living organisms (which occurs through genetic mutations when cells make copies of themselves) is the main driving force behind the large changes seen over billions of years of life on Earth. This is evolution! ...
15.1 Darwin*s Theory of Evolution Wed. 2/2
15.1 Darwin*s Theory of Evolution Wed. 2/2

... The Puzzle of Life’s Diversity ...
What Makes Us Human?
What Makes Us Human?

... We now know that inherited variation comes about through mutation, random assortment of chromosomes and genes, sexual reproduction where two parents contribute (different) genes to the offspring, and out breeding between different populations of the same species. ...
The making of the Fittest: Natural Selection and Adaptation
The making of the Fittest: Natural Selection and Adaptation

... • Natural selection acts on variation among individuals within populations. The differential survival and reproductive success of individuals with different traits causes populations to change over time. • By comparing organisms living today with the fossil record of extinct organisms, it is possibl ...
File
File

... a. Malthus proposed that human populations outgrow food supply and death and famine were inevitable. b. Darwin applied this to all organisms; resources were not sufficient for all members to survive. c. Only certain members survive and reproduce. Organisms Differ in Fitness a. Fitness is a measure o ...
Contents Unit 5- Evolution Chapter 15 I. Evolution A. Central theme
Contents Unit 5- Evolution Chapter 15 I. Evolution A. Central theme

... 2. Darwin realized it more strongly applied to plants and animals. IV. Darwins Theory A. Competition- living space/ food / is limited B. Variation- not all individuals of a species are alike. C. Adaptations- characteristics that increase chance for survival. D. Natural Selection-Individuals with var ...
Domain V Evolution
Domain V Evolution

... Charles Lyell’s Principles of Geology Thomas Malthus called The Principles of Population 40,000-mile trip on the Beagle ...
Ch.10: Principles of Evolution
Ch.10: Principles of Evolution

... • Paleontology was a new science in Darwin’s time • Our fossil record is incomplete, but it does support the theory of evolution • Many transitional fossils have been found that show the change in organisms over time ...
Evolution (Genetic Change in Species Over Time) is a consequence
Evolution (Genetic Change in Species Over Time) is a consequence

... Models of Evolution 1. Gradualismgradual genetic change over long periods of time leads to new species 2. Punctuated equilibriumperiods of rapid genetic change in species is separated by periods of stability ...
File
File

...  That adaptation becomes more common in the next generation of offspring ...
Galapagos Islands
Galapagos Islands

... Definitions to Know • Scientific Theory = a well-supported, testable explanation of phenomena that have occurred in the natural world. • Evolution = change over time, the process by which modern organisms descended from ancient organisms • Is Evolution Fact or Fiction? – Scientists believe it’s Fac ...
Evolution Notes
Evolution Notes

... Evolution of Populations: A population is a group of individuals of the same species that interbreed and share a common group of genes Gene pool- all the genes, including all the different alleles, that are present in a population Relative frequency of an allele- the number of times that the allele ...
Homologous structures
Homologous structures

... -“descent with modification” natural selection: individuals with superior physical or behavioral characteristics are more likely to survive and reproduce than those without such characteristics ...
S7L5 Students will examine the evolution of living organisms
S7L5 Students will examine the evolution of living organisms

... 1. Overproduction: This refers to the way many species produce waaaay more offspring than can possibly survive. Video clip 12:45 What type of reproduction? What is that called when the baby looks so different from the mom? Process of change? ...
Evolution Notes TEACHER
Evolution Notes TEACHER

... b) Theory of transmission of acquired characteristics was shown to be incorrect 3. Charles Darwin a) Introduced the idea of natural selection as the driving force of evolution 4. Gregory Mendel a) Introduced the idea of genes as the mechanism of transmission of traits B. Observation and Inferences b ...
Nothing in biology makes sense except in the light of evolution
Nothing in biology makes sense except in the light of evolution

...  Took 20 years of writing and experimenting before he published (1859, Origins of the Species)  One example: o Took seeds and immersed them in sea water over different time periods to see if the seeds could germinate o Were seeds able to make it to Galapagos from S. America (yes) Current Evidence ...
Science Chapter 5 Study Guide Cells and Heredity Key Concepts
Science Chapter 5 Study Guide Cells and Heredity Key Concepts

... ancient organisms, and the characteristics of organisms on the Galápagos Islands. Darwin reasoned that plants or animals that arrived on the Galápagos Islands faced conditions that were different from those on the mainland. Perhaps, Darwin hypothesized, the species gradually changed over many genera ...
Topic 5 - Fillingham
Topic 5 - Fillingham

... Pentadactyl limbs: “penta” means five; “dactyl” means fingers ...
Thomas Malthus
Thomas Malthus

... • The idea that in each generation more offspring are born than survive to adulthood, coupled with the notions of competition for resources and biological diversity led to the theory of evolution. • Darwin wrote, “ It at once struck me that under these circumstances favourable variations would tend ...
Evolution is the phenomenon of modification with descent (it is not
Evolution is the phenomenon of modification with descent (it is not

... – Current geological processes can explain earth, but only on a long time-scale ...
Evolution Change Over Time Unit Summary
Evolution Change Over Time Unit Summary

... other to survive; competition is usually indirect o Selection: some variations make individuals better adapted to their environment; those individuals are more likely to survive and reproduce – their offspring may inherit the helpful characteristic; after many generations, more members of the specie ...
Evolution * Natural Selection
Evolution * Natural Selection

... stretch their neck to reach tall leaves, this results in a long neck. This trait is then inherited by the kids. ...
HISTORY OF EVOLUTIONARY THOUGHTNEW
HISTORY OF EVOLUTIONARY THOUGHTNEW

... ► keeping populations in check ► Natural selection is the process of selecting for a variation that is best suited to its environment ► “Survival of The Fittest”: those that can survive and reproduce the most viable offspring are the most fit ...
Review - Evolution (2014)
Review - Evolution (2014)

... 3. a. Where did Charles Darwin do most of his research? b. What was the name of the book he wrote? c. What was the name of the ship which he traveled aboard? 4. Thoroughly explain the theory of natural selection. ...
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Saltation (biology)

In biology, saltation (from Latin, saltus, ""leap"") is a sudden change from one generation to the next, that is large, or very large, in comparison with the usual variation of an organism. The term is used for nongradual changes (especially single-step speciation) that are atypical of, or violate gradualism - involved in modern evolutionary theory.
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