A Researcher Isolates Stem Cells from a Developing Embryo and Finds

question 130

Multiple Choice

A researcher isolates stem cells from a developing embryo and finds that they are able to differentiate only into bone cells or red blood cells. The isolated stem cells are likely from the:

• A)morula.
• B)gastrula.
• C)ectoderm.
• D)mesoderm.
• E)endoderm.

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Definitions:

Marginal Cost

The financial increment incurred by the production of an extra unit of a product or service.

Average Total Cost

It refers to the total cost per unit of output, calculated by dividing the total cost of production by the number of units produced.

Efficient Mix

An allocation of resources that maximizes the total utility to society, where no individual can be made better off without making someone else worse off.

Potentially Efficient

A state in which resources could be utilized in a way that maximizes the net benefits to society or an economy, although not necessarily currently achieved.