Darwin based his theory of evolution by natural selection on his observations of the a. genotypes of individuals. b. phenotypes of individuals. c. genotypes of populations. d. phenotypes of populations. Is this a or d?

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  1. Science

    Which of the following best describes a scientific theory? A.A scientific theory is a rule of nature that can never be changed. B.A scientific theory is an educatrd guess about the possible results of an experiment. C.A scientific theory is a description

  2. Science

    1. What is the difference between a scientific theory and a scientific law? A) A scientific theory describes a pattern of observations, while a scientific law is an educated guess based on observation. B) A scientific theory is based on a few experiments,

  3. Science

    Which statement best describes why the steady state theory cannot explain the radiation detected in space? (1 point) The theory is based on the idea that galaxies and stars are continuously replaced; therefore, facts about radiations would not be included

  4. biology

    Which one of the following statements is true? Question 6 options: Natural selection works on variation already present in a population. Natural selection works on non-heritable traits. Individuals evolve through natural selection. Organisms evolve

  5. Science

    How are the processes of natural selection and artificial selection similar? How are they different? My answer: They are similar because they both have the same result: species adapting to their environment. They both involve species with good adaptations

  6. biology

    EVOLUTION (fill in the blanks) Natural selection is the BLANK for evolution As a result of natural selection, organisms with more BLANK traits are more likely to BLANK, BLANK, and BLANK on the favorable traits to their offspring. These traits are passed on

  7. biology

    When Darwin published his theory of evolution, he included all of the following ideas EXCEPT the idea that a. species changed slowly over time. b. some organisms become less suited to their environment then others. c. evolution occurs in spurts after major

  8. science

    Which of the following best describes a scientific theory? A scientific theory is a rule of nature that can never be changed A scientific theory is an educated guess about the possible results of an experiment A scientific theory is description of a

  9. Science

    Think about the factors that will influence the evolution of humans in the future. Name one factor that would exert influence through the process of natural selection and one factor that would exert influence through artificial selection. 1.natural

  10. science

    Darwin hypothesized that there are definite steps to natural selection. Consider the model here. Use the Roman numerals (I - III) to guide you through the steps. Which is an accurate description of Darwin's hypothesized theory of natural selection? A)

  11. Spanish Questions?

    16. What makes Pan American Games different from the Olympic Games? some sports are unique, like jai alai they are celebrated every 2 years only Cuba can host them they are celebrated every 6 years 17. Which theory was developed based on observations made

  12. Science

    Which of the following statements is true about natural selection and artificial selection? A. Traits that make an organism more beneficial to humans are favored during artificial selection. B. Males and females mate and produce offspring during natural

  13. his

    explain darwin theory of evolution. how it was applied to economic races and nation by social Darwinist?

  14. Biology check please

    1. Who most influenced Darwin's idea that life could change slowly over a long period of time? (1 point) Malthus Hutton and Lyell Lamarck livestock breeders and farmers 2. Who most influenced Darwin's idea that some offspring are better suited to survival

  15. Science

    What does the theory of evolution tell us about how organisms adapt to their environment over time? Natural selection occurs before changes in the environment. A population changes in response to a change in the environment. Environmental changes can be

  16. Spanish

    Which theory was developed based on observations made on the Galapagos Islands? a. big bang b. natural selection*** c. relativity d. planetary motion Where is the best place to put the adjective "perezoso" in the following sentence? Diego(1) es(2) un(3)

  17. Biology!!

    Darwin is considered the "father of evolutionary biology." Four of his contributions to the field of evolutionary biology are listed below. The nonconstancy of species. Branching evolution, which impleies the common descent of all species. occurrence of

  18. Science

    What is the difference between a scientific theory and a scientific law? A. A scientific theory describes a pattern of observations, while a scientific law is an educated guess based on observation. B. A scientific theory is based on a few experiments,

  19. Biology

    check my answers? 1. What is the difference between Darwin's theory of evolution and Lamarck's theory of evolution? A)Darwin believed that organisms changed gradually over time, but Lamarck thought they changed suddenly. B)Lamarck believed that organisms

  20. Please help me!!! BIOLOGY

    1. Explain how natural selection and sexual selection can work together to cause the evolution of large antlers on male moose. 2. Suggest two ways a synthetic biologist can change the course of evolution.

  21. Biology

    Which of the following situations best shows Darwin’s theory of natural selection as a mechanism for evolution? A. The long neck of a giraffe is the result of its ancestor continually reaching for higher branches. B. The ancestor of the snake had its

  22. Science

    Darwin based his theory of evolution by natural selection on his observations of the a. genotypes of individuals. b. phenotypes of individuals. c. genotypes of populations. d. phenotypes of populations. Is this a or d?

  23. Biology

    According to the Theory of Evolution, Natural Selection is the mechanism by which evolution occurs. Remember: evolution occurs at the level of the population. Individuals do not evolve, populations evolve. The process of Natural selection is based on the

  24. Biology

    All the following statements concerning the theory of evolution by natural selection are true EXCEPT: The bodies of organisms in a population change by use and disuse, and the changes are inherited by the next generation. Why is the above the correct

  25. science

    Does Charles Darwin have any supporters for his theory of evolution?

  26. Science

    1. When evolution was first proposed, which of the following was used as evidence to support the idea? A. observations of nature B. laboratory experiments C. extensive fossil collections D. genetic sequences 2. How did Darwin and Lamarck differ in their

  27. scientist

    Which of the following BEST describes the theory of natural selection?

  28. biology

    how does the existence of cells, organelles, cellular reproduction, natural selection, DNA replication, transcription, translation, heredity, genetics, mutations, and taxonomy provide evidence that supports the theory of evolution?

  29. Science

    Describe what Charles Darwin observed on the Galapagos Island. Explain what he concluded based on his observations.

  30. science

    Which BEST explains the difference between a scientific theory and a scientific law (A) a law is based on evidence, while a theory is based just on ideas (B)a theory can become a law, but a law cannot become a theory (C) a theory explains a natural

  31. Darwin’s theory

    Name and define the five distinct ideas in Darwin’s theory of evolution by natural selection. I need two more theses are the ones I have: Populations show variation for almost all traits. Certain variations improve survivorship and the number of

  32. Biology

    28. Natural selection causes a. changes in the environment b. plants and animals to produce more offpsring than can survive c. changes in the frequency of certain favorable characteristics in a population d. all of the above D? 30. When Darwin published

  33. sci

    What was Darwin's reasoning behind the theory of natural selection?

  34. Science

    As an environmental science teacher, how would you respond to someone who tells you (a) that he or she does not believe in biological evolution because it is "just a theory," and (be) we should not worry about air pollution because through natural

  35. biology/honors

    Charle Darwin made theory of natural selection but couldn't explain why there is variation within populations. Explain two reasons why there is variation within population ? PLEASE help me answer this question is for my test

  36. sucession and natural selection

    Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

  37. Biology

    Research and discuss an event in Charles Darwins' life that lead to his theory of evolution. Events could be directly in Charles Darwin's life or could be individuals whose ideas Darwin incorporated into his work. Besides the voyage to Beagle and the visit

  38. Social Studies Opinion

    What do you think about this aricle? Can I get some of your ideas? Indoctrinated in belief The statistics in "Darwin's sin" (Feb. 8), which indicate only half of Americans believe in evolution, are sad. Evolution is proven based on fact, scientific study

  39. Science

    2. Which of these was NOT included in Darwin and Wallace's theory of natural selection? a. variability b. high reproductive rates c. survival of the most fit. d. traits passed on from parents to offspring. e. mutation. I don't remember the word mutation

  40. biology (fill in the blanks)

    Big picture of natural selection/ keep in mind… Natural selection doesn’t move in a BLANK BLANK Natural selection is not a BLANK process Natural selection isn't BLANK; Its all relative to the BLANK. Its from a study form. These are the ones I don't

  41. English/Grammar

    In an essay I recently wrote, I wrote the following two sentences: "Natural selection. By examining the meaning of each of these words, the meaning of the entire phrase becomes pellucid: natural selection is the selection of traits by nature." I understand

  42. Biology I

    Charles Darwin- Evolution? 2) Where does variation occur within an organism that causes evolution? 5) What is the main source of evidence for evolution? 6) What was the occupation that Darwin was originally studying for? 8) What did Darwin believe about

  43. Science (evolution)

    Given Darwin’s Theory of Evolution, what scientific evidence best supports evolution by natural selection?

  44. Science

    What obstacles did Darwin's theory of natural selection and evolution face and how did he overcome these? I know one would be scientists in those days having different theories (obstacle)...

  45. BIOLOGY

    Compare the basic principles on which the Darwin’s natural selection and Lamarck’s concepts of evolution are based.

  46. Biology

    Why was Charles Darwin able to offer a large amount of evidence for his theory of evolution by natural selection? He compiled the fossil record. He collected data for 5 years while traveling around the world. He conducted in-depth experiments with

  47. Science

    Can you check my answers for me? The answers I picked have a check mark next to them. Thank you. 1. Darwin’s theory of evolution by means of natural selection proposes that changes happen from generation to generation from ____________ of an organism to

  48. weakness......

    what was one weakness of Darwin’s theory of evolution by natural selection?? You can find some supposed weaknesses of Darwinism here, but don't believe everything you read: http://www.strengthsandweaknesses.org/Weaknesses/essential_weaknesses.htm

  49. Science

    What does the theory of evolution tell us about how organisms adapt to their environment over time? Natural selection occurs before changes in the environment. A population changes in response to a change in the environment. Environmental changes can be

  50. Biology

    28. Natural selection causes a. changes in the environment b. plants and animals to produce more offpsring than can survive c. changes in the frequency of certain favorable characteristics in a population d. all of the above D? 30. When Darwin published

  51. sci

    Would someone critique my hypothesis? question:Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved

  52. Humanities

    In what ways does Darwin's theory of natural selection challenge traditional views? Is this theory compatible with a belief in a supreme being? If so, how?

  53. Science

    Hi any links or ideas? Given darwins theory of evolution, what scientific evidence best supports evolution by natural selection?

  54. Science 7R - HW Check (PLZ read!)

    Compare Lamarck's explantion of evolution with Darwin's theory. My Answer - After scientist collected large amounts of data on the inheritance of characteristics, Lamarck's explanation was rejected. Darwin's developed the theory of evolution still accepted

  55. Science

    How limbless salamanders evolved according to Darwin's theory of natural selection.

  56. Biology

    Darwin was able to formulate his theory of evolution based on several facts. Which of the following facts was unavailable to Darwin in the mid-nineteenth century? Natural resources are limited. Individual organisms in a population are not alike.

  57. science

    Explain how limbless salmanders evolved according to Darwin's theory of natural selection?

  58. Sci-275

    Explain how limbless salamanders evolved according to Darwin's theory of natural selection?

  59. Sci

    Explain how limbless salamanders evolved according to Darwin's theory of natural selection?

  60. biology

    Would you like to help me answers some of my questions in Biology? 1/ Darwin concluded that the most well adapted individuals in a population will leave the most offspring for future generations. This can be considered a measure of an individual's.. a/

  61. sci 275

    propose a hypothesis to explain how limbless salamanders evoled according to Darwin's theory of natural selection

  62. HELP

    Explain how Charles Darwin used the theory of natural selection to rationalize why each species of finch of the Galapagos Island had a different type of beak.

  63. Science

    As an environmental science teacher, how would you respond to someone who tells you (a) that he or she does not believe in biological evolution because it is “just a theory, “ and (b) we should not worry about air pollution because through natural

  64. Earth Science Continued

    Please help me with the following questions: 1. John Dalton said that the total pressure (Pt) exerted by a mixture of gases in a container is equal to the sum of the individual pressures of each gas present (if each gas was the only one present in the

  65. science

    Evolution is the theory and natural selection is the process. Explain what this might mean. How can environmental factors determine a feature in a species?

  66. Science

    I am having trouble finding anything to answer this question. Any help I would appreciate it! Describe Darwin's Theory of Natural Selection and indicate why species are able to adapt to changes in their enviroment. Be sure to include a discussion of how

  67. Biology

    my sister still be sick so i still helping her post questions. i write paragraph from her textbook that go with question. Ultimately, Darwin recognized in nature a process that operates in a manner similar to the way artifical selection worked on farms and

  68. Biology-Evolution

    When Charles Darwin returned from his five year voyage on the HMS Beagle, he A) Realized his ideas about evolution were wrong B) Copied the evolution theory of Wallace C) Immediately published his ideas about evolution *** D) Researched and wrote about his

  69. sci

    Although most salamanders have four legs, the aquatic salamander resembles an eel. It lacks hind limbs and has very tiny forelimbs. Explain how limbless salamanders evolved according to Darwin's theory of natural selection.

  70. sci

    Although most salamanders have four legs, the aquatic salamander resembles an eel. It lacks hind limbs and has very tiny forelimbs. Explain how limbless salamanders evolved according to Darwin's theory of natural selection.

  71. science

    How does mutation contribute to variation in a species? Evolution is the theory and natural selection is the process. Explain what this might mean. How can environmental factors determine a feature in a species?

  72. sci

    Although most salamanders have four legs, the aquatics salamander shown below resembles an eel. It locks hind limbs and has very tiny forelimbs. propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

  73. sci

    Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

  74. sciene

    Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

  75. science

    Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

  76. Axia College Environmental Science

    Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

  77. environmental science

    Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

  78. sci 275 envioromental science

    Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

  79. science

    Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

  80. environmental science

    Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

  81. science

    what spacifc web site can we look on to do the theory orf evolution on darwin??? (:

  82. science

    Which of the following best describes a theory? A a theory is a guess or hunch about something that has occurred in nature B a theory is based on verifiable laws that can be proven true C a theory is a set of ideas that explains a phenomenon that has been

  83. Biology

    Can anyone explain why natural selection works on phenotypes? And how that affects genotypes?

  84. History

    Do you agree with Darwin's idea of natural selection. Why or why not. Give minimum of 3 examples. thanx

  85. biology

    What is evolution by natural selection? Do it mean changes.

  86. reading/writing

    I have to pick a creative selection such as a painting, political cartoon, or lyrics form a song, poem etc, and I need to complete the following. 1. What observations I can make about this selection 2. What questions can I develop form these observations

  87. ESSAY EDITING

    please edit for grammar and sentence structure!! thanks in advance!! Resnik briefly discusses several standards of ethical conduct in science. I will explain the standard of openness from Resnik’s point of view, and argue why it is important to follow

  88. Science

    Factors that affect natural selection and evolution.

  89. envirnomental science

    as an environmentalscience teacher, how would you respone to someone who tells you that he or she does not believe in biological evolution because it is just a theory, and we shoul not worry about air pollution because through natural selection, the human

  90. Biology

    Describe an example of how natural selection influence the evolution of a particular species.

  91. Darwin and Irreducible Complexity

    What was Darwin’s perspective on the idea of irreducible complexity, gaps in the fossil record and beautiful animals like the peacock? http://www.asa3.org/evolution/irred_compl.html Darwin did not have all the answers as scientists today do not either.

  92. Religion

    Many Christians seem to accept modern cosmology - Galileo's view that the earth is not the center of the Universe - while at the same time disagreeing with the theory of evolution. For this discussion, we will focus on the following questions (in 250 words

  93. Science

    hi any ideas or any links? Describe an example of how natural selection impacted the evolution of a particular species

  94. 7th grade social studies Ms. Sue please

    For a project I need to answer these questions: 1. What is eugenics and how is it linked to Darwin’s theory of evolution? 2. Why did the Scopes Monkey Trial occur? I have tried researching but I cannot find a good website anywhere. I tried Wikipedia, but

  95. Biology - Please check?

    How does artificial selection differ from natural selection? (Free response) Here is what I wrote: While both of these selections have to do with breeding, artificial selection (same as selective breeding) is where either plants or animals are

  96. Science - 7th grade (repost)

    Can you check my homework? 38. How does natural selection lead to evolution? a. Organisms mutate to adapt to their environment. b. Helpful traits accumulate among surviving members of the species. c. Overproduction provides food for stronger members of the

  97. Science/Biology

    Please check my answers: 1. Which of the following correctly states the relationship between monkeys and humans? A. Humans and monkeys evolved from apes. B. Humans evolved from monkeys. C. Humans and monkeys evolved from the same ancestor, which is now

  98. Biology

    Can someone please tell me if I have the right answers? Pasteur's experiments led to which theory? A. biogenesis theory B. endosymbiont theory C. evolution theory D. spontaneous generation theory I think its A or D Scientists have fossil evidence for which

  99. Biology

    Can someone please tell me if I have the right answers? Pasteur's experiments led to which theory? A. biogenesis theory B. endosymbiont theory C. evolution theory D. spontaneous generation theory I think its A or D Scientists have fossil evidence for which

  100. Science - 7th grade

    Can you check my homework? (don't think I'd posted before) 38. How does natural selection lead to evolution? a. Organisms mutate to adapt to their environment. b. Helpful traits accumulate among surviving members of the species. c. Overproduction provides

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