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According to Darwin, is variation among individuals commonplace or rate within a population?
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- Describe natural selection and give an example of natural selection at work in a population.Darwin observed that all organisms show variation. Is there any population of organisms that is an exception?How do populations grow in size? How does Darwin explain this? If you wish you may include a diagram.
- How do populations grow in size? How does Darwin explain this?Charles Darwin was the first to suggest that groups of organisms change over time. TRUE OR FALSE?Darwin realized that variation among ___________ was how selection occurred, ultimately causing change in species. Group of answer choices A-elements B-cultures C-populations D-species E-individuals
- What are the facts that support Darwin’s theory of Natural selection?According to Darwin’s model of evolution, evolution can only occur if there is some variation present among the individual members of a population. Which statement best describes the source of this variation among members of a species? A) variation exists because different individuals will have different access to food and other resources B) individuals will vary depending on geography and climate C) variation exists because not all genes will be affected D) variation among individuals may arise as a result of mutations in the genetic codeWhich statement does NOT represent one of Darwin's observations? Some characteristics are heritable and passed on to offspring. Changes in populations are gradual and take place over long periods of timme. Members of the same species may exhibit considerable variation. Some characteristics afford their possessor a better chance of survival All individuals have an equal chance to survive and reproduce.