The Example of the Sickle-Cell Allele Demonstrates a Key Aspect

question 49

Multiple Choice

The example of the sickle-cell allele demonstrates a key aspect of evolution through natural selection, in that

• A) human populations in the tropics are the most susceptible to random changes caused by natural selection.
• B) adaptation and fitness are in relation to specific environments; traits are not universally adaptive or maladaptive.
• C) adaptation and fitness are in relation to the individual organism, not the general population.
• D) although natural selection usually acts upon the phenotype, it can sometimes act upon the genotype.
• E) natural selection increases the variety in a population upon which subsequent natural selective processes can act.

Recognize the importance of environmental factors and community infrastructure in disease prevention.

Understand the historical development of public health initiatives and their impact on community health.

Analyze the role of government and non-governmental organizations in the advancement of public health.

Identify key figures and their contributions to public health and nursing.

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Definitions:

Seller's Business

The commercial activities, operations, or engagements of a seller in the marketplace, including the sale of goods or services.

Nonconforming Goods

Products or goods delivered under a contract that do not meet the specifications or standards agreed upon.

No Further Obligation

A term indicating that a party has no continuing responsibility or duty under a contract or agreement.

Commercial Unit

A unit of goods that is regarded as a single whole for purposes of transaction and assessment, often used in the context of sales and commercial law.