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Questions and Answers
What must be present first in order for natural selection to occur?
What must be present first in order for natural selection to occur?
Which layer contains the oldest fossils?
Which layer contains the oldest fossils?
What are vestigial structures?
What are vestigial structures?
What are the pictures of human, horse, cat, bat, bird, and whale arms showing?
What are the pictures of human, horse, cat, bat, bird, and whale arms showing?
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What is the main function of natural selection?
What is the main function of natural selection?
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What is the definition of genetic drift?
What is the definition of genetic drift?
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What is the main outcome of speciation?
What is the main outcome of speciation?
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What defines geographic isolation?
What defines geographic isolation?
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In Hardy Weinberg calculations, what does 'P' represent?
In Hardy Weinberg calculations, what does 'P' represent?
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What do organisms typically compete for?
What do organisms typically compete for?
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Study Notes
Conditions for Natural Selection
- Three essential elements must be present for natural selection to occur: variation in population, heritability of traits, and differential reproduction or survival.
Fossil Record
- The oldest fossils are found in the deepest layer of the earth's crust.
Vestigial Structures
- Vestigial structures are organs or features that have lost their original function through evolution, but are still present in a reduced form.
Comparative Anatomy
- The pictures of human, horse, cat, bat, bird, and whale arms show similar bone structures, indicating a common ancestor.
Natural Selection
- The main function of natural selection is to favor individuals with advantageous traits, leading to adaptation and evolution.
Genetic Drift
- Genetic drift is the random change in the frequency of a gene or trait in a population over time.
Speciation
- The main outcome of speciation is the formation of new, distinct species that can no longer interbreed.
Geographic Isolation
- Geographic isolation is a barrier that prevents individuals from different populations from interbreeding, leading to genetic divergence.
Hardy-Weinberg Equations
- In Hardy-Weinberg calculations, 'P' represents the frequency of the dominant allele in a population.
Competition
- Organisms typically compete for essential resources such as food, water, light, and space.
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Description
Prepare for your Pre-AP Biology exam by studying this evolution study guide. Learn about the factors involved in Natural Selection and the types of evidence for evolution. Test your knowledge online with Quizlet.
