Use the Following Key to Choose the Best Answer

question 172

Multiple Choice

Use the following key to choose the best answer.
-Cellulose

• A)Carbohydrates
• B)Lipids
• C)Proteins
• D)Nucleic acids

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Definitions:

Cells

Basic structural, functional, and biological units of all living organisms, consisting of a nucleus and cytoplasm enclosed in a membrane.

Mesozoic Era

Span of geologic time commonly known as the Age of Reptiles; divided into Triassic (252–201 mya), Jurassic (201–145 mya), and Cretaceous (145–66 mya) periods; ended with the mass extinction of the dinosaurs and many other species.

Dominant Life Form

The prevailing organisms in a particular ecosystem, characterized by their extensive presence and influence on that environment.

Reptiles

Vertebrates characterized by dry skin with horny scales and adaptations for terrestrial reproduction; include turtles, snakes, and alligators; reptiles are a paraphyletic group unless birds are included.