Several New Tetraploid Species of a Plant Called Salsify (Tragopogon)

question 14

Multiple Choice

Several new tetraploid species of a plant called salsify (Tragopogon) known as salsify have arisen in western North America.These new species each arose from a diploid species that went through the process of allopolyploidy.This mode of speciation is a type of ________ and it occurs _______.

• A)allopatric speciation; almost instantaneously
• B)allopatric speciation; very slowly
• C)sympatric speciation; almost instantaneously
• D)sympatric speciation; very slowly

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:

Elasticity of Supply

The sensitivity of the supply volume of an item to changes in its pricing.

Consumer

An individual who purchases goods or services for personal use rather than for manufacturing or resale.

Secondary Immune Response

The response of the immune system upon its second or subsequent exposure to a specific antigen, typically faster and more vigorous than the primary response.

Primary Immune Response

The initial response of the immune system to a foreign antigen, characterized by the activation and proliferation of immune cells.