Phylogeny Worksheet
Grade 12 Biology worksheet covering the principles of phylogeny, phylogenetic trees, and evolutionary relationships.
Includes
Standards
Topics
Phylogeny: Evolutionary Relationships
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Date:
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. The study of evolutionary relationships among organisms is called .
2. A diagram that represents evolutionary relationships among organisms is known as a .
3. A group that includes a common ancestor and all of its descendants is called a group.
4. Shared derived characters, or , are used to determine evolutionary relationships.
5. Which of the following is NOT a type of evidence used to construct phylogenetic trees?
Fossil records
Morphological data
Behavioral observations
Astrological predictions
6. A node on a phylogenetic tree represents:
A homologous gene
A shared derived character
A common ancestor
An analogous structure
7. The length of branches on a phylogenetic tree always indicates the amount of time that has passed.
True
False
8. Homoplasy refers to shared characters that evolved independently in different lineages.
True
False
9. Briefly explain the difference between homology and analogy in the context of phylogenetic analysis.
10. Describe the principle of parsimony as it applies to constructing phylogenetic trees.
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