The Relatively Thin Layer on the Earth's Surface Where Life

question 38

Multiple Choice

The relatively thin layer on the earth's surface where life is possible is known as the

• A)ecosystem.
• B)biosphere.
• C)biome.
• D)biopreserve.
• E)lithosphere.

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Definitions:

Species-Specific Defense

The predetermined, instinctive behaviors exhibited by animals of a particular species when threatened, reflecting survival mechanisms evolved over time.

Reactions

Responses of an organism to internal or external stimuli.

Fixed-Interval Schedules

A reinforcement schedule where rewards are provided after a constant, specific period of time has passed, encouraging a pattern of response.

Ethanol

A chemical compound, often referred to as alcohol, used in beverages, as a fuel additive, and in the manufacture of a wide range of products.