The Only Known Source of Human Embryonic Stem Cells Is

question 39

Multiple Choice

The only known source of human embryonic stem cells is:

• A) placental tissue
• B) umbilical cords
• C) early human embryos
• D) brain tissue
• E) nerve tissue

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Definitions:

Perfect Complements

Goods that are always consumed together in fixed proportions, where the utility derived from one good enhances the utility derived from the other.

Income Effect

The impact on an individual's or economy's purchasing power from an increase or decrease in income, which subsequently affects the quantity demanded for goods and services.

Substitution Effect

The change in consumption that occurs when a price change for one good causes a consumer to replace that good with a more or less expensive substitute.

Price Change

An alteration in the cost of goods or services in the market.