​What Are Stem Cells

question 207

Multiple Choice

​What are stem cells?

• A)Cells that form the tip of the spinal cord
• B)​Cells that stimulate the body's organs for brief, vigorous activity
• C)Cells that contribute to the immune response when someone is ill​
• D)Undifferentiated cells that can develop into other types of cells​

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Definitions:

Budget Deficit

The financial shortfall when a government's expenditures exceed its revenues within a given fiscal period, leading to borrowing or debt accumulation.

Economic Crises

Periods of significant decline in economic activity spread across the economy, lasting more than a few months, and are normally visible in real GDP, real income, employment, industrial production.

Environmental-protection Legislation

Laws and regulations enacted by governments to regulate activities that cause environmental degradation, and to protect natural resources and ecosystems.

Money Supply

The total amount of monetary assets available in an economy at a specific time, including cash, bank deposits, and other liquid assets.