Fill in the Blank with UNIDIRECTIONAL or BIDIRECTIONAL

question 28

Short Answer

Fill in the blank with UNIDIRECTIONAL or BIDIRECTIONAL. In general, the brain's principal arteries and surface arterioles are _____________________, but the penetrating arterioles are _____________________ with regard to the direction of blood flow.

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Definitions:

Barriers To Entry

Obstacles that make it difficult for new firms to enter a market, which may include high start-up costs, regulatory hurdles, or strong competition.

Monopolistic Competition

Market in which firms can enter freely, each producing its own brand or version of a differentiated product.

Monopoly

A market structure characterized by a single seller controlling the entire supply of a unique product or service, without close substitutes.

Differentiated Products

Goods or services that are distinguished from similar products by characteristics like quality, features, or brand identity, leading to non-price competition.