Please read directions carefully:
Answer the following essay questions in 1-2 pages, single-spaced.
Include a bibliography on a separate page with 7-10 literature resources from trusted scientific sources
Under each essay question are prompts to provide guidance, but feel free to explore the topic.
Make sure your essay connects to the idea of vertebrate evolution through time.
Your essay must be well thought out, researched, and clearly written.
EVOLUTION: Devonian Period, the Age of Fish
- ? Why is the Devonian known as the age of fish?
- ? What is the climate like during the Devonian period? WHy do you think that was the case?
- ? Describe some of the aquatic vertebrates that are living during the Devonian period. (Placoderm, Acanthodii)
- ? What are some of the distinguishing characteristics that help scientists identify Chondrichthyes, Ray finned fish, and Lobe finned fish? Why do scientists think these characteristics evolved? How did these characteristics help them survive the Devonian climate?
- ? What are some morphological characteristics that help fish to survive in our modern oceans? What morphological characteristics that were present during Devonian helped fish survive in modern oceans?
- ? What happened at the end of the Devonian and how did it impact fish evolution?
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