Almost All (99%)of the Calcium in the Body Is Used

question 85

Multiple Choice

Almost all (99%) of the calcium in the body is used to

• A)provide energy for cells.
• B)provide rigidity for the bones and teeth.
• C)regulate the transmission of nerve impulses.
• D)maintain the blood level of calcium within very narrow limits.

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Definitions:

Ecosystem

A biological community interacting with its environment.

Energy Flow

The passage of energy through the components of an ecosystem, from the sun through producers to consumers and then to decomposers.

Cyclical

Describes a process that occurs in a repeated sequence or in cycles.

Carbon-Rich Remains

Organic material that has a high carbon content, often found in fossils or peat, resulting from the decomposition of living organisms.