Preview

Charles Darwin: Origin Of Species By Natural Selection

Powerful Essays
Open Document
Open Document
4058 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Charles Darwin: Origin Of Species By Natural Selection
* Charles Darwin
Origin of species by natural selection
Theory of natural selection
1. Over production
More offspring are produced than can survive
2. Variation
There are differences in the traits of these organisms
3. Competition
4. Best adapted survive select agent
5. Reproduce
Pass on desirable traits to the next generation
Organisms rarely have mutations that can allow the to better adapt to there envirironment.

I. Evidence for evolution
A. Fossils Remnants of organisms that lived in the past.
Fossil record
1. Bones
2. Petrified
Organic materials are replaced in the fossil (minerals)
3. Animals in tar pits
4. Insects in amber
5. Imprints

*Fossils are found in sedimentary rock.

Dating Fossils
Pay for dinner …show more content…
Analogous structure have the same function but different anatomy
Ex: Wing of insect (made of chitin) * Wing of bird (made of bone)
3. Vestigial organs
No use today
Ex: Appendix * Coccyx * Ear muscles
4. Embryology
Similarities of embryos in development
F=fish
A=amphibian
R=Reptile
M=mammal
B=birds
*

Biogeography
Geographical distribution of species
Species living in the same region tend to be more closely related to each other.
Species that look similar but are from different regions are not often closely related.
Convergent evolution
Organisms that aren’t related but have similar traits

Molecular biology
Comparing DNA and protein structure
Universal genetic code
DNA and RNA
Respiration
Protein structure
Hemoglobin
Gas exchange
Protein structure

Natural selection in action
Insecticide and drug resistance
Insecticide didn’t kill all insects
Insects that were resistant to the drug reproduced
Resistance is inherited
Insecticide becomes less and less effective

Lamarck
Inheritance of acquired characteristics
Contribution
Organisms can change
Explanation
1. Organisms develop traits out of need
Continue Reading
View Writing Issues

You May Also Find These Documents Helpful

  • Satisfactory Essays

    General Biology Quiz 2
    • 646 Words
    • 3 Pages

    General Biology Quiz 2

    1) If two modern organisms are distantly related in an evolutionary sense, then one should expect that…

    • 646 Words
    • 3 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Taxonomy: Scientific Nomenclature and Classification
    • 718 Words
    • 3 Pages

    Taxonomy: Scientific Nomenclature and Classification

    Species within a genus are more closely related to each another than to species in another genus. According to evolutionary classification, that is because all members of a genus share a recent common ancestor…

    • 718 Words
    • 3 Pages
    Good Essays
    Read More
  • Good Essays

    Charles Darwin's Hypothesis Of Natural Selection
    • 714 Words
    • 3 Pages

    Charles Darwin's Hypothesis Of Natural Selection

    The well known ecologist Charles Darwin exhibited the hypothesis of natural selection. He went on numerous trips to the wildlife, taking after his interest of the nature and the change that happens in the nature. After examining different kinds of living organisms, he clarified Natural Selection as "preservation of favorable variations and the rejecting of injurious variations."(900). Darwin utilized relations and demonstrations to show that distinctive changes happened in the same specie, which assisted them with adapting to their environment.…

    • 714 Words
    • 3 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Darwin's Theory Of Natural Selection
    • 256 Words
    • 2 Pages

    Darwin's Theory Of Natural Selection

    Natural Selection is when each generation of a species develops new characteristics and adapts more to the environment to survive. This theory of evolution caused some controversy because it contradicted the beliefs of many religious leaders. It also caused scientists studying the field to reevaluate everything that they had learned! Some people tried to use this theory to justify acts like slavery and genocide. Natural Selection was used to imply that these behaviours were natural.…

    • 256 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Satisfactory Essays

    Fys Notes on Darwin
    • 592 Words
    • 3 Pages

    Fys Notes on Darwin

    * Biogeography offered facts and patters associated with the mysterious clustering pattern among closely allied species…

    • 592 Words
    • 3 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Charles Darwin's Natural Selection Theory
    • 754 Words
    • 4 Pages

    Charles Darwin's Natural Selection Theory

    By definition, natural selection theory is whereby the organisms that have adapted well to the environment can survive even during the times of scarcity and have offspring. The theory involves both competition and cooperation. According to Darwin, competition and cooperation are related to power such that, in life competition will always be there where people and animals must strive for the scarce resources (Darwin 29). During the competition, the strong ones will win and take the power. Cooperation is a key factor during competition. Only those who tend to cooperate with their members have high chances of winning. Also, the interrelationship between cooperation and competition can give rise to power where those who…

    • 754 Words
    • 4 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Charles Darwin's Theory Of Nature
    • 173 Words
    • 1 Page

    Charles Darwin's Theory Of Nature

    Nature is the influence behavioral development such as fetal environment, nutrition, stress, and sensory stimulation that has come very influential as exampled by the textbook.…

    • 173 Words
    • 1 Page
    Satisfactory Essays
    Read More
  • Good Essays

    Charles Darwin's Theory Of Evolution By Natural Selection
    • 652 Words
    • 3 Pages

    Charles Darwin's Theory Of Evolution By Natural Selection

    There have been many theories that explain how evolution occurred. Charles Darwin, on the book Origin of Species, spoke about how traits are passed on from generations to generations by natural selection. In addition, he stated how there are four objections to the theory of natural selection, how species can win the struggle for existence through natural selection, and how the origin of species challenges religion.…

    • 652 Words
    • 3 Pages
    Good Essays
    Read More
  • Good Essays

    Charles Darwin's Scientific Theory Of Natural Selection
    • 630 Words
    • 3 Pages

    Charles Darwin's Scientific Theory Of Natural Selection

    Evolution is basically the change in the heritable characteristic or traits in living organisms which are passed from one generation to another and gives rise to diversity at every stage of the organism’s biological organisation. The process of evolution was not well understood until 19th century when Charles Darwin proposed the scientific theory of natural selection as a driving tool in evolution. The process involved both the macroevolution in which organisms went through major evolutionary changes over a long period of time and acquired different traits from different parents or ancestries and the microevolution in which a group of organisms went through minimal changes with time but the traits they acquired were typically from the same ancestor.…

    • 630 Words
    • 3 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Charles Darwin's Theory Of Evolution
    • 235 Words
    • 1 Page

    Charles Darwin's Theory Of Evolution

    Darwin’s theory of evolution is based on the theory of natural selection. Natural selection is the the process whereby organisms better adapted to their environment tend to survive and produce more offspring. This theory is now widely believed by many people throughout the world. Charles Darwin’s theory includes the idea that fossils of extinct animals turn up where similar animals live today. Darwin came up with this theory when he discovered fossils of animals that were very similar to the animals that were living today. Darwin also observed that the Galapagos tortoise’s had different shapes of their shells depending on which island they came from. Darwin believed that these tortoises were adapting to their environment by changing their shell…

    • 235 Words
    • 1 Page
    Satisfactory Essays
    Read More
  • Good Essays

    Charles Darwin's Theory Of Biological Evolution
    • 547 Words
    • 3 Pages

    Charles Darwin's Theory Of Biological Evolution

    Charles Darwin provided a mechanism for the theory of Biological Evolution, which is what separates him from previous researchers. Before Darwin’s theory of biological evolution by natural selection, the ancient Greeks were the first to attempt to understand our place in the natural world. Following the Greeks, was Aristotle, he believed that each living form had attributes that could not be altered, therefore, fitting in an ordered rank ladder, and that human beings were at the top of the ladder. Before the 19th century most naturalist believed that there was a single creation event—influenced by the church’s beliefs (Stanford 17). Even then, naturalists continued to develop classifications for animals and plants. John Ray was the first to…

    • 547 Words
    • 3 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Darwin's Role In Influencing Natural Selection
    • 300 Words
    • 2 Pages

    Darwin's Role In Influencing Natural Selection

    Natural selection was a fundamental idea formed by Darwin that living things evolve gradually from generation to generation. Darwin argues that all living species come to historical process through a historical process involving random changes. Through natural selection living things have acquired to behave in ways that provide the promotion of survival and reproduction.…

    • 300 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Comparing Darwin And Origin Of The Species
    • 1491 Words
    • 6 Pages

    Comparing Darwin And Origin Of The Species

    The first idea that both Darwin and London relate to in their works is the conflict of an individual against another individual within the same species. In life, there is an imperative need to be the best of the best. In order to fulfill this goal, animals must compete against one another to claim the higher position. For example, in wolves, there is an organized social structure where at the top sits the alpha-male, the strongest and most skillful wolf in a pack who has won his way up. Likewise, in Origin of the Species, Darwin said: “as more individuals are produced than can possibly survive, there must in every case be a struggle for existence, either one individual with another of the same species, or with the individuals of distinct species,…

    • 1491 Words
    • 6 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    charles darwin
    • 350 Words
    • 2 Pages

    charles darwin

    Furthermore, this gave Charles Darwin the chance to work hands on through his research and experiments which gave him the chance to closely observe the studies of Botany, Zoology and Geology through the Pacific Islands and the Galapagos Archipelago in South America.…

    • 350 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Satisfactory Essays

    Evolution and Charles Darwin A.
    • 322 Words
    • 2 Pages

    Evolution and Charles Darwin A.

    A. The more fit individuals or species will survive, adapt or change, and reproduce over time.…

    • 322 Words
    • 2 Pages
    Satisfactory Essays
    Read More

Related Topics