WHAT IS LIFE? ACHIEVE 1 TERM ACCESS CODE
5th Edition
ISBN: 9781319516116
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 10, Problem 7SA
Summary Introduction
To review:
Components of an organism's evolutionary fitness.
Introduction:
An organism's evolutionary fitness depends on its reproductive capabilities.
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Define natural selection and fitness
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
Define fitness and relate it to both natural selection and adaptation.
Chapter 10 Solutions
WHAT IS LIFE? ACHIEVE 1 TERM ACCESS CODE
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- Which of the following would be the best measure of an organism’s evolutionary fitness? Lifespan Number of offspring Number of siblings Physical strengtharrow_forwardDescribe "biological evolution" and "fitness"arrow_forwardBriefly explain why fitness comes only by developing a balanced approach to life in all of the important spheres of life.arrow_forward
- Describe why fitness has a molecular basis. How does DNA play a role in an organism's fitness? Is DNA the only way an organism's fitness can be increased?arrow_forwardWhich of the following is true about fitness? a) It refers to the physical strength of an individual b) It is determined solely by an individual's genotype c) It is the same thing as survival d) It is the ability of an individual to reproduce and pass on its genes to the next generationarrow_forwardWhat is fitness? To what degree does fitness dependon the environment in which organisms live?arrow_forward
- What is meant by the term ‘fitness’ in the sense it is used in Evolutionary theory? Be specific and accurate.arrow_forwardDefine direct and indirect fitness in the context of evolutionary biology. Explain how this might affect how individual animals behave toward relatives compared to a stranger.arrow_forwardWhat is meant by "fitness"?arrow_forward
- The theory that is based on four principles that describe how organisms who are well-adapted to their environment survive to produce offspring is calledarrow_forwardWhich of the following are arguments against the expression "survival of the fittest"? Choose all that apply. (1, 2, 3, or 4 could be correct) "Fittest" implies absolute fitness, when relative fitness of one genotype compared to others is more important "Fittest" makes it sound like it is about physical fitness, when whether an individual reproduces may depend on other traits "Fittest" makes it sound like an individual will be fit in all environments, when in reality the same genotype may have different fitness in different environments Reproduction is more important than survival for transmitting genetic differences to progenyarrow_forwardWhich of the following is the best definition of fitness? a. The ability to increase the number of alleles in a gene pool b. The ability to survive for a long time c. The ability of an individual to adapt to a changing environment d. The ability to produce many offspringarrow_forward
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