Yesterday's Family Farms Have Given Way to

question 33

Multiple Choice

Yesterday's family farms have given way to

• A)importing most foods from abroad.
• B)collectively-run farming communes.
• C)corporate agribusinesses.
• D)smaller, individually-run farms.

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Definitions:

Sonar

Sonar is a technique that uses sound propagation (usually underwater) to navigate, communicate, or detect other vessels by sending out pulses of sound and listening for echoes.

Echolocation

Determination of the position of objects by detecting echoes of high-pitched sounds emitted by an animal; a type of sensory system used by bats and dolphins.

Thermoreceptors

Sensory cells or nerve endings specialized in detecting variations in temperature, found in the skin and other parts of the body.

Lateral Line

A system of sense organs found in aquatic vertebrates, used to detect movements and vibrations in the surrounding water.