Podcast
Questions and Answers
What do homologous structures indicate about different organisms?
What do homologous structures indicate about different organisms?
- They are remnants of ancient structures with no current function.
- They point to a common evolutionary origin despite serving different functions. (correct)
- They provide no information about evolutionary relationships.
- They evolved independently to perform the same function.
Which of the following is an example of a vestigial structure in humans?
Which of the following is an example of a vestigial structure in humans?
- The collarbone
- The tailbone (correct)
- The stomach
- The heart
What type of evidence involves comparing DNA sequences of different organisms?
What type of evidence involves comparing DNA sequences of different organisms?
- Behavioral evidence
- Molecular evidence (correct)
- Anatomical evidence
- Embryological evidence
What do similarities in amino acid sequences of proteins between species suggest?
What do similarities in amino acid sequences of proteins between species suggest?
Why is embryological evidence significant in the study of evolution?
Why is embryological evidence significant in the study of evolution?
Flashcards
Homologous Structures
Homologous Structures
Structures in different organisms that share a common ancestor, but have different functions.
Vestigial Structures
Vestigial Structures
Structures in organisms that no longer serve a function but were useful in ancestors.
Embryological Evidence
Embryological Evidence
Comparing the development of embryos across different species reveals similarities, pointing to a common ancestor.
DNA Evidence
DNA Evidence
Signup and view all the flashcards
Protein Similarities
Protein Similarities
Signup and view all the flashcards
Study Notes
Evidence for Evolution
- Structural Similarities: Organisms with similar evolutionary pressures may develop similar structures, even if they have different origins.
- Vestigial Structures: Remnants of ancestral structures that may have lost their original function. Examples are common in vertebrates(the given example in the image is flippers and jaws in organisms like sharks and fish).
- Embryological Similarities: Embryos of closely related organisms often have similar developmental stages.
- DNA/Protein Similarities: Comparing DNA and protein sequences reveal similarities indicating common ancestry. Similar amino acid sequences in proteins suggest more closely related organisms. If two organisms inherit similar DNA sequences, those sequences must have derived from a common ancestor.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz explores key evidence supporting the theory of evolution. Topics include structural similarities, vestigial structures, embryological similarities, and DNA/protein sequence comparisons. Test your understanding of these concepts and their implications in evolutionary biology.
