Which of the Following Statements Are True of the Primary

question 4

Multiple Choice

Which of the following statements are true of the primary germ layers of the embryo (Select all that apply) ?

• A)The ectoderm gives rise to the nervous system.
• B)Mesoderm forms most of the liver and pancreas.
• C)Bones come primarily from endoderm.
• D)The lungs are epithelial tissue from the ectoderm.
• E)The stomach lining is an inside surface,and is of endodermal origin.
• F)Most organs have tissues from all three germ layers.

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Definitions:

Nonexcludability

The inability to keep nonpayers (free riders) from obtaining benefits from a certain good; a characteristic of a public good.

Public Goods

Goods that are non-excludable and non-rivalrous, meaning they are available to all members of society and one person's consumption does not reduce availability for others.

Public Good

A good or service offered to every member of a society for free, supplied by either government entities or private individuals or groups, without seeking financial gain.

Collective Willingness

The aggregate propensity of a group to invest in goods, services, or actions that benefit the community or society as a whole.