Sedimentary Structures Such as Graded Bedding, Cross- Bedding, and Ripple

question 44

Multiple Choice

Sedimentary structures such as graded bedding, cross- bedding, and ripple marks are formed:

• A) after lithification.
• B) during lithification.
• C) during or after deposition, but before lithification.
• D) during any of the above stages.

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Definitions:

Mortality

The state or condition of being subject to death; the death rate within a given population or demographic.

Birth Rate

Birth rate is the number of live births per thousand people in a population over a given period of time.

R-Selected

A term used in ecology to describe organisms that produce many offspring, with a strategy focusing on quantity over quality for survival.

K-Selected

A term describing organisms that produce fewer offspring, with a greater emphasis on parental care and survival of each offspring.