FM Radio Only Operates in the Frequency Range 88 MHz

question 16

Multiple Choice

FM radio only operates in the frequency range 88 MHz to 108 MHz because

• A)higher or lower frequencies are blocked by the ionosphere.
• B)higher and lower frequencies are not radio waves.
• C)the government set those limits.
• D)none of the above

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Definitions:

Behavioral Isolation

A prezygotic reproductive isolating mechanism in which reproduction between similar species is prevented because each group exhibits its own characteristic courtship behavior; also called sexual isolation.

Gametic Isolation

A prezygotic reproductive isolating mechanism in which sexual reproduction between two closely related species cannot occur because of chemical differences in the gametes.

Temporal Isolation

Temporal isolation is a form of reproductive isolation where two species mate or flower at different times of the day, season, or year, preventing interbreeding.

Linnaeus' Classification

A system of categorizing and naming organisms developed by Carl Linnaeus, based on shared physical characteristics.