An Amoeba,a Protozoan That Moves by Pseudopodia,approaches a Smaller Protozoan

question 24

Multiple Choice

An amoeba,a protozoan that moves by pseudopodia,approaches a smaller protozoan and extends its pseudopodia (extensions of cytoplasm in plasma membrane) around the smaller protozoan.Once the amoeba's pseudopodia completely surrounds the other protozoan,the amoeba's plasma membrane pinches off by folding back into the amoeba and creating a vesicle containing the smaller protozoan.This vesicle is now within the amoeba itself and will soon fuse with other vesicles containing digestive enzymes.This is an example of

• A) pinocytosis.
• B) exocytosis.
• C) osmosis.
• D) phagocytosis.

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Definitions:

Aggregate Demand

The overall desire for goods and services within an economy, identified at a given price level and during a specified timeframe.

Taxes

Mandatory monetary fees or different forms of taxes levied on a taxpayer by a government entity to finance government operations and a range of public expenses.

Permanent Tax

A concept in fiscal policy describing taxes that are intended to be implemented indefinitely or without a predetermined end date.

Aggregate Demand

The total market demand for goods and services within an economy at a fixed price level over a certain time period.