The Teacher Calculates the Highest Score as Being 97 and the Lowest

question 18

Multiple Choice

The teacher calculates the highest score as being 97 and the lowest score as being 75.What is the range?

• A)22
• B)11
• C)172
• D)86

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Definitions:

Ecotone

A transition area between two biological communities where different ecosystems meet and integrate, often rich in species diversity.

Marine Snow

The organic debris (plankton, dead organisms, fecal material, etc

Aphotic Region

The lower layer of the ocean (deeper than 100 m or so) where light does not penetrate.

Neustonic

Pertaining to the thin surface layer of an aquatic environment where organisms may float or swim.