The Tallgrass Prairie Is Currently the Rarest Biome in North

question 70

Multiple Choice

The Tallgrass Prairie is currently the rarest biome in North America due to:

• A) rampant urbanization
• B) recent climate change
• C) industrial pollution
• D) conversion to agriculture
• E) industrial pollution and the conversion to agriculture

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Definitions:

Chemically Altered

A term describing a substance whose chemical composition has been changed through a reaction or process.

CAMP

Cyclic adenosine monophosphate; a second messenger important in many biological processes.

Protein Kinase

Class of enzymes that phosphorylates other proteins. Many of these kinases are responsive to other chemical signals (e.g., cAMP, cGMP, insulin, epidermal growth factor, calcium, and calmodulin).

Intracellular Mediator

Molecules inside cells that transmit signals from a cell receptor to a target, playing a key role in cell signaling pathways.