Which of These Is NOT a Characteristic of Sponges

question 58

Multiple Choice

Which of these is NOT a characteristic of sponges?

• A) sessile filter feeders
• B) body wall has two cell layers
• C) flagellated collar cells move water
• D) water enters through a single cavity, the osculum
• E) amoeboid cells transport food and make skeletal fibers and gametes

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Definitions:

Full Employment GDP

The output level of goods and services in the economy when all available labor resources are being used in the most efficient way possible.

Multiplier

A factor that quantifies how an initial change in economic activity (e.g., spending or investment) leads to a more than proportional change in the national income.

Deflationary Gap

A situation where aggregate demand in an economy is lower than the aggregate supply, leading to falling prices, reduced production, and unemployment.

Equilibrium GDP

The level of Gross Domestic Product at which total demand for goods and services equals total supply, resulting in stable prices and employment.