The Dunkers Are a Religious Group That Moved from Germany

question 13

Multiple Choice

The Dunkers are a religious group that moved from Germany to Pennsylvania in the mid-1700s.They do not marry with members outside their own immediate community.Today,the Dunkers are genetically unique and differ in gene frequencies,at many loci,from all other populations including those in their original homeland.Which of the following likely explains the genetic uniqueness of this population?

• A)population bottleneck and Hardy-Weinberg equilibrium
• B)heterozygote advantage and stabilizing selection
• C)mutation and natural selection
• D)founder effect and genetic drift
• E)population bottleneck and stabilizing selection

Explain ventilation and its importance in respiratory efficiency.

Understand the physics of breathing in various environments and at different elevations.

Describe the adaptations of respiratory systems to overcome challenges associated with gas solubility and diffusion.

Explain the advantages and limitations of specialized respiratory structures and strategies, including countercurrent exchange and tidal breathing.

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