Bats Use Echolocation to Orient Themselves and Locate Objects

question 63

Multiple Choice

Bats use echolocation to orient themselves and locate objects.Doing this requires special adaptations in their inner ear,midbrain,and auditory cortex of their cerebrum.The echolocation system of bats is an example of

• A)a cell.
• B)a tissue.
• C)an organ.
• D)an organ system.

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Definitions:

Price Level

A measure of the average prices of goods and services in an economy at a given time.

Multiplier

The factor by which changes in spending will affect the aggregate income level of an economy; often used in the context of the Keynesian economic multiplier effect.

Crowding-Out

A concept where increased government spending leads to reduced investment in the private sector, often due to higher interest rates.

Investment-Accelerator Effects

The phenomenon where an increase in national income or output leads to a disproportionately larger increase in investment expenditure.