Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 19.1, Problem 1TYK
Summary Introduction
Introduction:
The gradual changes in the population over a period of time, which is heritable is known as evolution. The evolution is dependent on the changes in the external environment and selection pressure among the organism.
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Which of the following does NOT provide evidence for the theory of evolution?
the existence of homologous and vestigial structures
structural and chemical homologies
recorded observations of an individual organism in a population
fossils
presence of DNA in all organisms
Which of the following is not considered an evolutionary mechanism ("force" )?
Mutation
Genetic drift
Natural selection
Migration (gene flow)
All are evolutionary mechanisms.
A small population of wood rats boarded a ship leaving Europe and ended up in South America where they began breeding. Which type of Mechanism evolution is this.
Natural Selection
Genetic drift
Gene Flow
Bottleneck Effect
Founder Effect
Sexual Selection
Chapter 19 Solutions
Principles of Biology
Ch. 19.1 - Prob. 1TYKCh. 19.1 - Prob. 2TYKCh. 19.1 - The phrase an organism evolves is incorrect....Ch. 19.1 - Prob. 1BCCh. 19.2 - Explain how geography played a key role in the...Ch. 19.2 - Prob. 2CCCh. 19.2 - Prob. 3CCCh. 19.2 - Prob. 1TYKCh. 19.2 - Homologous traits show similarities because the...Ch. 19.3 - What is the frequency of pink flowers in a...
Ch. 19.3 - Prob. 1TYKCh. 19.3 - Prob. 2TYKCh. 19.4 - Lets suppose the climate on an island abruptly...Ch. 19.4 - Prob. 2CCCh. 19.4 - Prob. 3CCCh. 19.4 - Prob. 4CCCh. 19.4 - Prob. 1TYKCh. 19.4 - Prob. 2TYKCh. 19.4 - Prob. 3TYKCh. 19.5 - How does the bottleneck effect undermine the...Ch. 19.5 - Prob. 1TYKCh. 19.5 - Prob. 2TYKCh. 19.5 - Prob. 1BCCh. 19.6 - How does migration affect the genetic compositions...Ch. 19.6 - Prob. 1BCCh. 19.6 - Prob. 1TYKCh. 19.6 - Populations that experience inbreeding may also...Ch. 19 - Prob. 1TYCh. 19 - An evolutionary change in which a population of...Ch. 19 - Homology occurs because different species occupy...Ch. 19 - Prob. 4TYCh. 19 - Prob. 5TYCh. 19 - Prob. 6TYCh. 19 - Prob. 7TYCh. 19 - Prob. 8TYCh. 19 - Prob. 9TYCh. 19 - The micro-evolutionary factor most sensitive to...Ch. 19 - Prob. 1CCQCh. 19 - Prob. 2CCQCh. 19 - A principle of biology is that populations of...Ch. 19 - Prob. 1CBQCh. 19 - Prob. 2CBQ
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- The fossil record of evolution correlates with evidence from ______. a. the geologic record b. radiometric dating c. comparing development patterns and morphology d. comparative biochemistry e. all of the abovearrow_forwardThe word “theory” in theory of evolution is best replaced by______. a. fact b. hypothesis c. idea d. alternate explanationarrow_forwardIn _______________ the selecting agent is the environment, whereas in _______________ the selecting agent is humans. (a) natural selection; convergent evolution (b) mutation; artificial selection (c) homoplasy; homology (d) artificial selection; natural selection (e) natural selection; artificial selectionarrow_forward
- Which of the following is not part of Darwins mechanism of evolution? (a) differential reproductive success (b) variation in a population (c) inheritance of acquired (nongenetic) traits (d) overproduction of offspring (e) struggle for existencearrow_forwardCharles Darwin proposed that evolution could be explained by the differential reproductive success of organisms that resulted from their naturally occurring variation. Darwin called this process (a) coevolution (b) convergent evolution (c) natural selection (d) artificial selection (e) homoplasyarrow_forwardThrough _______, a body part of an ancestor is modified differently in different lines of descent. a. homologous evolution b. morphological convergence c. adaptive divergence d. morphological divergencearrow_forward
- Measuring Genetic Diversity in Human Populations The theory of natural selection has been summarized popularly as survival of the fittest. Is this an accurate description of natural selection? Why or why not?arrow_forwardThe American flying squirrel and the flying phalanger of Australia live in similar environments and look very similar. However, they are not closely related. What type of evidence of evolution this refers to? * Temporal isolation Sexual selection Divergent Convergent evolution No answerarrow_forwardThis mechanism of evolution occurs when populations migrate. extinction gene flow genetic drift natural selection? Give typing answer with explanation and conclusionarrow_forward
- What is the process in which organisms with favorable and desirable inherited traits are more likely to survive and reproduce than are individuals with other traits? Group of answer choices evolution mutation artificial selection natural selectionarrow_forwardWhich of the following is NOT a component of the Theory of Evolution by Natural Selection? competition for food and space variation among species inheritance of acquired characteristics survival and reproductionarrow_forwardA population of plants live in a valley. In this population there are plants with red flowers, purple flowers, and blue flowers. One day there is a mudslide and all of the plants purple flowers are killed leaving only red and blue flowered plants alive in the population. This is an example of which mechanism of evolution? Group of answer choices Artificial section Gene flow Sexual selection Genetic drift Natural selectionarrow_forward
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