Multiple Choice
Which of the following is true of Darwin's theory of natural selection?
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1. Introduction to Biology
Natural Selection and Evolution
Multiple Choice
Which of the following provides an accurate explanation for why vestigial structures may occur?
A
Vestigial structures are fully functional and necessary for survival in modern species.
B
Vestigial structures are remnants of organs or structures that had a function in an early ancestor.
C
Vestigial structures are formed as a result of environmental pressures that favor their development.
D
Vestigial structures develop due to the sudden appearance of new mutations.
Verified step by step guidance1
Understand the concept of vestigial structures: These are anatomical features or behaviors that have lost their original function through evolution.
Recognize that vestigial structures are remnants from ancestors: They are inherited from ancestors who had a use for these structures.
Consider the evolutionary process: As species evolve, certain structures may become less necessary for survival due to changes in environment or behavior.
Identify the role of natural selection: Structures that are no longer beneficial may not be completely eliminated if they do not negatively impact survival or reproduction.
Reflect on examples of vestigial structures: Examples include the human appendix, tailbone, or wisdom teeth, which are remnants of structures that were functional in ancestral species.
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