Bio 121 exam 1 review - Study guides, Class notes & Summaries
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BIO 121 Exam 1 Review Spring 2024 | Questions with Complete Answers.
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BIO 121 Exam 1 Review Spring 2024 | Questions with Complete Answers.
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BIO 121 Exam 1 Review Spring 2024 Questions and Answers | BIO 121 Exam 1 Review Spring 2024
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Evolution 
The gradual change in a species over time. 
Adaptation 
When the heritable trait increases an individuals fitness in a particular environment. 
Ancestral trait 
Is a character that existed in an ancestor. 
 
 
 
Derived trait 
Is one that is a modified form of the ancestral trait, found in a descendants. 
Vestigial trait
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BIO 121 Exam 1 Review Questions With All Correct Answers.
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Natural Selection - Answer A theory in which individuals with certain traits produce more offspring than others without these traits. 
 
Evolution - Answer The gradual change in a species over time. 
 
Adaptation - Answer When the heritable trait increases an individuals fitness in a particular environment. 
 
Ancestral trait - Answer Is a character that existed in an ancestor. 
 
Derived trait - Answer Is one that is a modified form of the ancestral trait, found in a descendants....
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BIO 121 Exam 1 Review Spring 2024
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BIO 121 Exam 1 Review Spring 2024 
 
Evolution 
The gradual change in a species over time. 
Adaptation 
When the heritable trait increases an individuals fitness in a particular environment. 
Ancestral trait 
Is a character that existed in an ancestor. 
Derived trait 
Is one that is a modified form of the ancestral trait, found in a descendants. 
Vestigial trait 
A reduced or incompletely developed structure that has no (or reduced) function (e.g. human tailbone or wisdom teeth). 
Homologous str
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BIO 121 Exam 1 Review Spring 2024
- Exam (elaborations) • 4 pages • 2024
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BIO 121 Exam 1 Review Spring 2024 
 
Evolution 
The gradual change in a species over time. 
Adaptation 
When the heritable trait increases an individuals fitness in a particular environment. 
Ancestral trait 
Is a character that existed in an ancestor. 
Derived trait 
Is one that is a modified form of the ancestral trait, found in a descendants. 
Vestigial trait 
A reduced or incompletely developed structure that has no (or reduced) function (e.g. human tailbone or wisdom teeth).
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BIO 121 Exam 1 Review Spring 2024
- Exam (elaborations) • 4 pages • 2024
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- $10.49
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BIO 121 Exam 1 Review Spring 2024 
 
Evolution 
The gradual change in a species over time. 
Adaptation 
When the heritable trait increases an individuals fitness in a particular environment. 
Ancestral trait 
Is a character that existed in an ancestor. 
Derived trait 
Is one that is a modified form of the ancestral trait, found in a descendants. 
Vestigial trait 
A reduced or incompletely developed structure that has no (or reduced) function (e.g. human tailbone or wisdom teeth). 
Homologous str...
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BIO 121 Exam 1 Review Spring 2024/2025 100% VERIFIED ANSWERS ALREADY PASSED
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QUESTIONS AND ANSWERS
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BIO 121 Exam 1 Review Spring 2024
- Exam (elaborations) • 4 pages • 2024
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BIO 121 Exam 1 Review Spring 2024 
 
Evolution 
The gradual change in a species over time. 
Adaptation 
When the heritable trait increases an individuals fitness in a particular environment. 
Ancestral trait 
Is a character that existed in an ancestor. 
Derived trait 
Is one that is a modified form of the ancestral trait, found in a descendants. 
Vestigial trait 
A reduced or incompletely developed structure that has no (or reduced) function (e.g. human tailbone or wisdom teeth). 
Homologous str...
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BIO 121 Exam 1 Review Spring 2024 Questions and Answers | BIO 121 Exam 1 Review Spring 2024
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Evolution The gradual change in a species over time. Adaptation When the heritable trait increases an individuals fitness in a particular environment. Ancestral trait Is a character that existed in an ancestor. Derived trait Is one that is a modified form of the ancestral trait, found ...
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BIO 121 Exam 1 Review 2024
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BIO 121 Exam 1 Review 2024
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