In Multicellular Organisms Cells Must Communicate to Make the Organism

question 70

Multiple Choice

In multicellular organisms cells must communicate to make the organism work as a whole. Which of the following might be useful for both long and short distance communication between animal cells?

• A) cell to cell contacts
• B) secretion of molecules into body fluids
• C) emitting high frequency sound waves to excite other cells
• D) producing electrical impulses that flow through interstitial fluid

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Definitions:

Balance Of Payments Surpluses

A situation where the total of a country's international transactions results in net earnings, with more credits from exports and capital income than debits for imports and overseas investments.

Recession

A significant decline in economic activity across the economy, lasting longer than a few months, typically visible in real GDP, real income, employment, industrial production, and wholesale-retail sales.

Trade Surplus

The amount by which a nation’s exports of goods (or goods and services) exceed its imports of goods (or goods and services).

Trade Deficit

A situation where a country's imports of goods and services exceed its exports, leading to more money flowing out of the country than coming in.