• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
CHAPTER 6 ADAPTATIONS OVER TIME
CHAPTER 6 ADAPTATIONS OVER TIME

... EARLY MODELS OF EVOLUTION  LAMARCK – SAID CHARACTERISTICS DEVELOPED BY INDIVIDUALS OVER TIME WERE PASSED ON TO OFFSPRING – WRONG  DARWIN – THEORY OF EVOLUTION BY NATURAL SELECTION – ORGANISMS WITH TRAITS MORE SUITED TO THEIR ENVIRONMENT ARE MORE LIKELY TO SURVIVE AND REPRODUCE – TRAITS ARE PASSED ...
Chapter 15 - Bio-Guru
Chapter 15 - Bio-Guru

... survival a.k.a COMPETITION 3. Genetic Variation: The organisms that possess a variation that will help them in this struggle, will ...
What is Evolution?
What is Evolution?

... • Documented the occurrence of ____________. • Suggested that the mechanism for evolution was ______________. ...
Natural Variation & Artificial Selection
Natural Variation & Artificial Selection

... livestock = selective breeding aka artificial selection • Artificial selection – nature provided the variation among different organisms, and humans selected those variations they found useful – Ex. Only cows that produce the most milk are bred ...
1. During his voyage on the Beagle, Charles Darwin made many
1. During his voyage on the Beagle, Charles Darwin made many

... Charles Darwin’s observation that finches of different species on the Galápagos Islands have many similar physical characteristics supports the hypothesis that these finch species ...
Paedomorphosis
Paedomorphosis

... On The Origin of Species did two things: 1. summarized all of the evidence in favor of the idea that all organisms have descended with modification from a common ancestor, and thus built a strong case for evolution 2. Suggested natural selection as a mechanism of evolution The Modern Synthesis atte ...
Chapter 22 ppt
Chapter 22 ppt

... in 1859, where he discusses his theory of natural selection as the mechanism for evolution ...
Quiz Key - byrdistheword
Quiz Key - byrdistheword

... 9. Darwin was well aware of what effect his theory of evolution would have on the public and on the Church of England. This was why he delayed publishing his work for several decades while he gathered additional evidence. Which one of the following was not evidence he used to support his theory? a. ...
adaptation adaptive radiation analogous structure artificial selection
adaptation adaptive radiation analogous structure artificial selection

... characteristic that increases an organism’s chance for survival. A single species evolves into different forms due to natural selection and various forms of isolation. Structures with similar functions that did not come from a common ancestry, but from sharing a similar environment. Selection caused ...
Ch 15 Standards Test Practice
Ch 15 Standards Test Practice

... C They do not pass on to their offspring new characteristics they have acquired during their lifetimes. D They tend to produce fewer offspring than do others in the same environment. factor within a species increases the 9 What likelihood that some members of a species will survive when environmenta ...
Evolution Concept Guide - Westminster Public Schools Wiki
Evolution Concept Guide - Westminster Public Schools Wiki

... generations", random genetic drift and gene flow. Genetic equilibrium is an ideal state that provides a baseline to measure genetic change against. P=q = 1 P square + 2pq + q squared = 1 ...
Jeopardy Ch. 15 16 - Spring
Jeopardy Ch. 15 16 - Spring

... What Darwin called “the ability of an organism to survive and reproduce in its environment” _________________ A: What is fitness? ...
Evolution
Evolution

... • Genetic Drift: biological evolution that occurs by chance…like a forest fire, hurricane, etc. Certain individuals are separated and develop separate characteristics. • Natural Selection: the process by which traits that improve an organism’s chances for survival and reproduction are passed on more ...
Evolution
Evolution

... Earth’s surface has changed over time, Earth is millions, not thousands of years old 3. Thomas Malthus – economist if unchecked, human population will double every 25 years (the struggle for survival prevents this) ...
evolution notes
evolution notes

... selection and survival of the fittest. Theory – an idea that is based on facts or information that is confirmed. This is NOT an opinion Fossil Record – collection of fossils that provides clues to Earth’s history Geologic time - the billion years of Earth’s history Natural Selection – the individual ...
file
file

... Vestigial Structures ...
Evolution - Coach Blair`s Biology Website
Evolution - Coach Blair`s Biology Website

...  Those with less favorable variations are less likely to ...
Chapter 15
Chapter 15

... proposed the idea of acquired traits to explain the changes. • Traits used most often would be enhanced and passed to offspring • Traits that were not used would diminish and disappear from offspring ...
file - Athens Academy
file - Athens Academy

... _________________________ that occurred during the production of gametes in their parents. 61. According to the _________________________ principle, allele frequencies in a population will remain constant unless one or more of five specific factors cause those frequencies to change. 62. When a popul ...
15-3 Darwin presents his case
15-3 Darwin presents his case

... INHERITED VARIATION ...
CPS Review of Concept 15.1
CPS Review of Concept 15.1

... The origin of new species, the extinction of species, and the evolution of major new features of living things are all changes that can be referred to as A B C D ...
TOP TEN THINGS TO KNOW ABOUT EVOLUTION
TOP TEN THINGS TO KNOW ABOUT EVOLUTION

... Example: a bat’s wing, a human hand, and a whale’s fin -Analogous Structures evolve through convergent evolution. Organisms from separate evolutionary branches come to have similar structures based on a shared purpose. Example: a shark’s dorsal fin and a dolphin’s dorsal fin. 6. Mutation: How variat ...
I. Evolution
I. Evolution

... At that time, most scientists believed that the Earth was only a few thousand years old. ...
15-2 Theories of Evolution
15-2 Theories of Evolution

...  If it increases the reproductive success and is inherited then the trait will be passed on to many offspring  As favorable genes increase, a population of organisms will adapt to its environment  Individuals with highest fitness will adapt well to its environment and reproduce more successfully ...
THQ #16 Darwin`s Theory of Evolution Read the chapter FIRST, then
THQ #16 Darwin`s Theory of Evolution Read the chapter FIRST, then

... c. fitness varies among individuals. d. there is heritable variation among members of the population. Which statement about the members of a population that live long enough to reproduce is consistent with the theory of evolution by natural selection? a. They transmit characteristics acquired by use ...
< 1 ... 122 123 124 125 126 127 128 129 130 ... 134 >

Inclusive fitness

In evolutionary biology inclusive fitness theory is a model for the evolution of social behaviors (traits), first set forward by W. D. Hamilton in 1963 and 1964. Instead of a trait's frequency increase being thought of only via its average effects on an organism's direct reproduction, Hamilton argued that its average effects on indirect reproduction, via identical copies of the trait in other individuals, also need to be taken into account. Hamilton's theory, alongside reciprocal altruism, is considered one of the two primary mechanisms for the evolution of social behaviors in natural species.From the gene's point of view, evolutionary success ultimately depends on leaving behind the maximum number of copies of itself in the population. Until 1964, it was generally believed that genes only achieved this by causing the individual to leave the maximum number of viable direct offspring. However, in 1964 W. D. Hamilton showed mathematically that, because other members of a population may share identical genes, a gene can also increase its evolutionary success by indirectly promoting the reproduction and survival of such individuals. The most obvious category of such individuals is close genetic relatives, and where these are concerned, the application of inclusive fitness theory is often more straightforwardly treated via the narrower kin selection theory.Belding's ground squirrel provides an example. The ground squirrel gives an alarm call to warn its local group of the presence of a predator. By emitting the alarm, it gives its own location away, putting itself in more danger. In the process, however, the squirrel may protect its relatives within the local group (along with the rest of the group). Therefore, if the effect of the trait influencing the alarm call typically protects the other squirrels in the immediate area, it will lead to the passing on of more of copies of the alarm call trait in the next generation than the squirrel could leave by reproducing on its own. In such a case natural selection will increase the trait that influences giving the alarm call, provided that a sufficient fraction of the shared genes include the gene(s) predisposing to the alarm call.Synalpheus regalis, a eusocial shrimp, also is an example of an organism whose social traits meet the inclusive fitness criterion. The larger defenders protect the young juveniles in the colony from outsiders. By ensuring the young's survival, the genes will continue to be passed on to future generations.Inclusive fitness is more generalized than strict kin selection, which requires that the shared genes are identical by descent. Inclusive fitness is not limited to cases where ""kin"" ('close genetic relatives') are involved.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report