In Terrestrial Microbial Communities, 1 Gram of Surface Soil May

question 7

Multiple Choice

In terrestrial microbial communities, 1 gram of surface soil may contain more than ____ microbes.

• A) 1 million
• B) 10 million
• C) 1 billion
• D) 10 billion

---

Definitions:

Callable

Describes a financial security (like a bond) that can be redeemed or "called" by the issuer before its maturity date, usually at a predefined price.

Convertible

Refers to a security (like bonds or preferred shares) that can be converted into a different form, commonly shares of the company's common stock.

Secured

Refers to loans or debt that are backed by collateral, reducing the risk for lenders.

Unsecured

Refers to loans or debts that are issued and supported only by the borrower's creditworthiness, rather than by any type of collateral.