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CH 11 Notes - Haiku Learning
CH 11 Notes - Haiku Learning

... 2. Charles Darwin: naturalists that took a trip around the world in the 1830’s and observed diverse and unique organisms a) Galapagos Islands: noticed that groups of animals varied from island to island (finches and tortoises) b) Noticed similarities and differences among animals around the world ...
File - Schuette Science
File - Schuette Science

... Vestigial Organs Organs that have no or little purpose. Evolution has lead to adaptations that suit particular organisms ...
Notes on Evolution
Notes on Evolution

... i. Conditions on early Earth were very different ii. NO OXYGEN OR CARBON DIOXIDE iii. Random chemical reactions gave rise to anaerobes which increased carbon dioxide in the atmosphere, this allowed for photosynthetic organisms to develop which then added oxygen ...
Biology – Evolution and Natural Selection
Biology – Evolution and Natural Selection

... Evolution by Natural Selection In nature, organisms with the best characteristics for surviving in an environment will live longer and pass those characteristics on to more offspring. Eventually more of the population will have these adaptive traits. ...
Concepts of Evolution
Concepts of Evolution

... Based on paleontology, Lamarck proposed a theory of evolution • Based on 2 mechanisms (1809) – Use and disuse: the idea that parts used the most grow stronger; the parts that don’t get used deterioate • Inheritance of acquired characteristics: the modification that an organism acquires during its l ...
Natural Selection and the Evidence of Evolution
Natural Selection and the Evidence of Evolution

... • What he studied: many species of animals and plants unique to the island, but are similar elsewhere • Major findings: Observations led to his consideration that species change over time ...
File
File

... create new species 5. How they could happen: 1. In a small isolated population, genetic change can spread more quickly through fewer individuals 2. Small population migrates to a new environment ...
LET*S GO OVER THE BIG IDEAS *
LET*S GO OVER THE BIG IDEAS *

... Natural Selection is a major mechanism of evolution • An adaptation is a genetic variation that is favored by selection and is manifested as a trait that provides an advantage to an organism in a ...
Evolution – Just A Theory?
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 ...
Evolution Mechanisms
Evolution Mechanisms

... Gradualism: the theory that species changed very gradually over time. Fossil evidence shows jumps, but the hypothesis is that we simply haven’t found the in-between fossils (missing links). Punctuated equilibrium: The theory that species are relatively unchanged for long periods, but then go through ...
Darwin and Natural Selection
Darwin and Natural Selection

... A. Darwin’s manuscript is completed. He will continue to tinker with it until its publication. ...
Chapter 22: Descent with Modification: A Darwinian View of Life
Chapter 22: Descent with Modification: A Darwinian View of Life

... Let’s make a list of the four evidences for evolution that are described in this concept. ...
Chapter 5 Lecture PowePoints
Chapter 5 Lecture PowePoints

... Mass extinction―when large numbers of species went extinct over a relatively short period of geological time. ...
evolution—that
evolution—that

... evolution—that ____________, not individuals, evolve and become adapted to the environments in which they live. The term “adaptation” has _____ meanings in evolutionary biology. The first meaning refers to the processes by which adaptive traits are acquired. The second meaning refers to the traits t ...
Evolution
Evolution

... states evolution is the development of new organisms from preexisting organisms over time. ...
Chapter 30
Chapter 30

... transmitted to its offspring • These acquired traits results in species that are better adapted to their environment • Ex: a giraffe’s neck became longer as a result of stretching to reach higher branches. This acquired trait was then passed down to the offspring ...
jhontesbiologyearthsage
jhontesbiologyearthsage

... a science, that is explained by scientific methodology and creationism is more so based on a belief that a supernatural entity exists. http://serendip.brynmawr.edu/biology/b103/f01/web3/ejelonu.html Biological evolution concerns changes in living things during the history of life on Earth. It begins ...
DO NOT WRITE ON THE EXAM Test: changes over time (100 points
DO NOT WRITE ON THE EXAM Test: changes over time (100 points

... 5. Which fact is the basis for using the fossil record as evidence that evolution has taken place? a. In undisturbed layers of rock strata, the older fossils are found in the deeper layers. b. There are fossils of all life-forms to be found in rock layers. c. All fossils were formed at the same time ...
- Free Documents
- Free Documents

... According to natural selection, these noncoding sections should accumulate mutations faster than functional genes and they do ...
Robinson`s Biology Lesson Plans: 4/10-4/23 Day 1- (4/10
Robinson`s Biology Lesson Plans: 4/10-4/23 Day 1- (4/10

... Even though LaMark made significant and accurate contributions to adaptation/evolution theory, what part of his contribution was incorrect? Students should highlight ...
File
File

... 1. All of the genes in a population - Contains 2 or more alleles (forms of a gene) for each trait 2. Relative frequencies - # of times an allele occurs in a gene pool compared to other ...
Overproduction
Overproduction

... – Why did some members of this species not survive? – What adaptations of different traits help some members survive while others did not? – Did all members without an adaptation die immediately? – What would happen to this species if the environment changed? ...
Let`s Focus On Evolution! - Evolution or Not by Former Judge
Let`s Focus On Evolution! - Evolution or Not by Former Judge

... reject evolution are not included in biology textbooks; thus, there is no challenge to the theory in the curriculum. It appears that publishing companies only use writings of those promoting evolution. Students are being shortchanged, where both the pro and con scientific evidence are not included. ...
The evolution of Populations
The evolution of Populations

... • Traits are passed on to offspring • Intrasexual selection: competition among males for the female (i.e. male deer) • Intersexual selection: when males display certain traits to attract the female (i.e. male bird of paradise) • Some traits that were originally selected for quality and good health a ...
Each objective will be covered in class and you are responsible for
Each objective will be covered in class and you are responsible for

... 1. Explain the difference between spontaneous generation and biogenesis. Include the experiments involved. ...
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Punctuated equilibrium



Punctuated equilibrium (also called punctuated equilibria) is a theory in evolutionary biology which proposes that once species appear in the fossil record they will become stable, showing little net evolutionary change for most of their geological history. This state is called stasis. When significant evolutionary change occurs, the theory proposes that it is generally restricted to rare and geologically rapid events of branching speciation called cladogenesis. Cladogenesis is the process by which a species splits into two distinct species, rather than one species gradually transforming into another. Punctuated equilibrium is commonly contrasted against phyletic gradualism, the belief that evolution generally occurs uniformly and by the steady and gradual transformation of whole lineages (called anagenesis). In this view, evolution is seen as generally smooth and continuous.In 1972, paleontologists Niles Eldredge and Stephen Jay Gould published a landmark paper developing their theory and called it punctuated equilibria. Their paper built upon Ernst Mayr's model of geographic speciation, I. Michael Lerner's theories of developmental and genetic homeostasis, as well as their own empirical research. Eldredge and Gould proposed that the degree of gradualism commonly attributed to Charles Darwin is virtually nonexistent in the fossil record, and that stasis dominates the history of most fossil species.
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