Which Characteristic Is Shared by Copper and Fluoride? ​

question 21

Multiple Choice

Which characteristic is shared by copper and fluoride? ​

• A)Both may be obtained from drinking tap water.
• B)Both serve as cofactors for a number of enzymes.
• C)Neither is involved in the integrity of bones and teeth.
• D)Neither is known to be toxic at intakes of 10 times the estimated safe and adequate dietary intake.

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Definitions:

Preincorporation Subscription

An agreement by an individual to purchase shares in a corporation that has yet to be formed.

Six-Month

Relating to or denoting a period or term of six months, often used in the context of time-specific agreements or conditions.

Debentures

A type of debt instrument not secured by physical assets or collateral but backed only by the general creditworthiness and reputation of the issuer.

Unsecured Debt

Unsecured debt refers to loans or credits not backed by collateral, meaning the lender relies on the borrower's promise to pay back the debt.