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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In your own words describe the four basic causes of evolution include examples:
* Mutation
* Natural selection
* Genetic drift
* Gene flow
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 statements regarding evolution is FALSE?
evolution is a relatively slow process
Oall of these statements are TRUE
evolution operates at a variable speed
transitional forms appear during periods of rapid evolutionary change
evolution operates over the course of multiple generations
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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 considered an evolutionary mechanism ("force" )? Mutation Genetic drift Natural selection Migration (gene flow) All are evolutionary mechanisms.arrow_forwardMechanisms of evolution include (check all that apply) Natural selection Genetic drift Genetic variation Mutation Gene flow and migrationarrow_forward
- This mechanism of evolution occurs when populations migrate. extinction gene flow genetic drift natural selection? Give typing answer with explanation and conclusionarrow_forwardhow do scientists support the theory of evolution? use the terms evolution, natural selection, vestigial structures, homologous structures, DNA, adaptations and fossilarrow_forwardWhat phrase best describes the major process component of evolution? natural selection O adaptation survival of the fittest descent with modificationarrow_forward
- Which of the following can be considered evidence in support of the theory of evolution? Pick all that apply different species all go through similar stages in their embryonic development selective breeding of dogs many different species of similar birds living on islands that are all close to one another fossilized remains of organisms no longer found on earth todayarrow_forwardWhy is genetic variation important to the process of evolution? (Choose all that apply) If all of the individuals in a population were the same the entire population would be vulnerable to extinction rather than evolut Evolutionary adaptations are the result of a gradual build up of genetic differences over long periods of time Evolution at the population level refers to changes in the gene frequencies in the population over time Individuals must be able to mutate genes in order to adapt to the current situation in their environmentsarrow_forwardWhich of the following is not true of natural selection? (a) natural selection acts to preserve favorable traits and eliminate unfavorable traits (b) the offspring of individuals that are better adapted to the environment will make up a larger proportion of the next generation (c) natural selection directs the course of evolution by preserving the traits acquired during an individuals lifetime (d) natural selection acts on a populations genetic variability, which arises through mutation (e) natural selection may result in changes in allele frequencies in a populationarrow_forward
- EVOLUTION LINK Write short paragraphs explaining each of the following statements: (a) Natural selection chooses from among the individuals in a population those most suited to current environmental conditions. It does not guarantee survival under future conditions. (b) Individuals do not evolve, but populations do. (c) The organisms that exist today do so because their ancestors had traits that allowed them and their offspring to thrive. (d) At the molecular level, evolution can take place by the replacement of one nucleotide by another. (e) Evolution is said to have occurred within a population when measurable genetic changes are detected.arrow_forwardWhich 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_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
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