Each Day,babies Spend About ___ Hours in REM Sleep

question 78

Multiple Choice

Each day,babies spend about ___ hours in REM sleep.Adults spend around ___ hours in REM sleep each day.

• A) 8; 4
• B) 8; 2
• C) 4; 4
• D) 4; 2

---

Definitions:

Marginal Cost

The incremental cost involved in producing an additional unit of a product or service.

Natural Monopolist

A single supplier in a market that can supply the entire market at a lower cost than any combination of two or more suppliers.

Socially Efficient

A situation in which a market or economy allocates resources in a way that maximizes the overall welfare of society.

Natural Monopolist

A company that can provide goods or services at a lower cost than any competitors can, due to economies of scale, often leading to a monopoly in the market.