QQuestionBiology
QuestionBiology
Which phrase best defines evolution by natural selection?
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Answer
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Step 1:I'll solve this problem by breaking down the key components of evolution by natural selection.
Step 2:: Understanding Natural Selection
Natural selection is a fundamental mechanism of evolutionary change proposed by Charles Darwin. It describes how organisms with favorable traits are more likely to survive and reproduce in their specific environment.
Step 3:: Key Components of Natural Selection
The phrase that best defines evolution by natural selection includes several critical elements: - Variation within a population - Inheritance of traits - Differential reproductive success - Adaptation to environmental conditions
Step 4:: Precise Definition
The most comprehensive definition is: "Individuals with heritable traits that are better suited to their environment tend to survive and produce more offspring, thereby gradually changing the genetic composition of a population over generations."
Step 5:: Breaking Down the Definition
- "Heritable traits" means genetic characteristics can be passed from parents to offspring - "Better suited to their environment" indicates that some traits provide survival advantages - "Survive and produce more offspring" means these advantageous traits become more common in subsequent generations
Final Answer
This definition captures the essence of Darwin's groundbreaking theory of evolution by natural selection.
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