Matter May Be Gained By, or Lost From, Ecosystems

question 49

Multiple Choice

Matter may be gained by, or lost from, ecosystems. How does this occur?

• A) Chemoautotrophic organisms can convert matter to energy.
• B) Matter can move from one ecosystem to another.
• C) Photosynthetic organisms convert solar energy to sugars.
• D) Heterotrophs convert heat to energy.

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Definitions:

Elemental Symbol

A one or two-letter abbreviation that represents an element on the periodic table.

Gold

A chemical element with the symbol Au (from Latin: aurum) and atomic number 79, valued for its rarity, malleability, and as a monetary standard.

Elemental Symbol

A one or two-letter abbreviation assigned to each chemical element based on its name, often derived from its name in Latin.

Lead

A heavy, malleable, ductile metal with a low melting point, often used in batteries and protective shielding.