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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Textbook Question
Chapter 19, Problem 2TY
An evolutionary change in which a population of organisms changes its characteristics over many generations in ways that make it better suited to its environment is
- natural selection.
- an adaptation.
- an acquired characteristic.
- evolution.
- both a and c.
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Which of the following is the degree of an organism’s adaptation to an environment, as measured by an individual’s relative genetic contribution to future generations?
Fitness
Lineage
Adaptation
Natural selection can be defined as:
chance differences in organism traits.
the chance for species numbers to increase rapidly.
the processes that lead individuals to resemble their parents.
the differential survival and reproduction of individuals.
the genetic fixation of species.
What is an adaptation in the context of evolution?
A heritable trait that was favored by natural selection. choose one of the following.
A random genetic mutation that causes a new trait in a population.
The ability of an individual to adjust to their environment as it changes..
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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- Define evolution: What is decent with modification? Use Mosquitoes and DDT to explain natural selection. What does the term fitness mean in the context of evolution?arrow_forwardWhich of the following is the best definition of a major transition in evolution? Individuals evolve traits the help them fight off rivals Formerly independent replicating individuals form a collective that reproduces together A group of individuals evolve traits that help them individually forage better Individuals evolve traits that allow them to colonize a new environment.arrow_forwardPlace the statement in order of how they would occur in nature. Be thinking about natural selection. Organisms produce more offspring than the environment can support. Organisms that survive reproduce, sending their genes into the next generation. Some organisms do not survive. Those that survive are better suited to the environment. There is increased competition for resources.arrow_forward
- Difference between two organism of the same species is called: :: adaptation : natural selection : variationarrow_forwardWhich of the following BEST describes the theory of natural selection? Living organisms change over time. Each species produces many more offspring than can survive long enough to reproduce. The offspring that do survive contain genes that are inherited from the parents. There is variation among the members of a species. Some of this variation is genetically determined and so can be passed on to future generations. Some individuals have genes that increase their chances for survival and reproduction. These individuals are more likely to reproduce and pass on their genes, causing their genes to become more common in the next generation. There is a struggle for existence among the members of a population.arrow_forwardWhich one of the following statements is true? Multiple Choice Organisms always evolve the characteristics they need to survive. Some individuals within the population must die for natural selection to occur. Darwin used molecular biology as evidence of evolution. Natural selection can only work on variation that already exists. Convergent evolution produces homologous structures.arrow_forward
- The theory of evolution states that all organisms change over the course of time due to environmental/ Earth changes. Natural selection is the main mechanism driving this change. Yet, for life on Earth, there are many unifying characteristics that we all share that form an unbroken bond between all organisms. Energy and Matter, heredity and the genetic code, interrelationships among organisms. These are the “Big Ideas” that bind us all. Each of the following are contributed toward the Living Systems of today: Biochemistry and the “Big 4 Macromolecules” The cellular nature of life Metabolism and energy (Photosynthesis and respiration) Heredity and the universality of DNA (gene control too) Evolutionary mechanisms Describe how the vast variety of species of living things came to be, and still tie in all of the similarities they share. How does each of ALL the mentioned above help shape the Unity and Diversity of Life on Earth? Include sources if applicable.aarrow_forwardThe theory of evolution states that all organisms change over the course of time due to environmental/ Earth changes. Natural selection is the main mechanism driving this change. Yet, for life on Earth, there are many unifying characteristics that we all share that form an unbroken bond between all organisms. Energy and Matter, heredity and the genetic code, interrelationships among organisms. These are the "Big Ideas" that bind us all. Each of the following are contributed toward the Living Systems of today: Biochemistry and the "Big 4 Macromolecules" The cellular nature of life Metabolism and energy (Photosynthesis and respiration) Heredity and the universality of DNA (gene control too) Evolutionary mechanisms Describe with all thorough explanations how the vast variety of species of living things came to be, and still tie in all of the similarities they share. How does each of ALL the mentioned above help shape the Unity and Diversity of Life on Earth? Include sources if…arrow_forwardEvolution is defined, in modern terms, as: Group of answer choices just a theory, which means it's not provable adaptation (learning to be a different way) just an hypothesis, which means we can prove it any measurable change in the overall genome (gene map) of a speciesarrow_forward
- Natural selection is based on all of the following except individuals who survive longer tend to have more offspring than those who die young genetic variation exists within populations Individuals adapt to their environments and, thereby, evolve populations tend to produce more offspring than the environment can support the best adapted individuals tend to reproduce morearrow_forwardWhich of the following best explains the phrase “survival of the fittest” in terms of evolution by natural selection? The strongest and fastest individuals will always survive and reproduce more often. The individuals that are the healthiest will always get more resources and survive better. Only individuals that have the most mates will survive with limited resources. The individuals that survive better and reproduce more often will pass their traits on more often.arrow_forwardWhich of the following statements about evolution is true? Natural selection provides a population with the adaptations that it needs to survive in its environment. Specific features of the environment can generate natural selection on a trait. Evolution and natural selection are the same thing. Because it is driven by mutation, evolution by natural selection is a random process.arrow_forward
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