Why Are Organic Reefs Useful Paleoecological Indicators

question 26

Multiple Choice

Why are organic reefs useful paleoecological indicators?

• A)Organisms only form limestone reefs in cold, tropic waters.
• B)Organisms only form limestone reefs where there is a great abundance of mineral matter in the water.
• C)Organisms only form limestone reefs in warm, clear, shallow water.
• D)Organisms in the modern world only form limestone reefs between 30 degrees north and south of the equator.
• E)Modern organisms only form limestone reefs in warm, clear, shallow water, between 30 degrees north and south of the equator.

---

Definitions:

Longitudinal Designs

Research strategies that involve repeated observations of the same variables or groups over a period of time.

Cohort

A group of subjects who share a defining characteristic, typically studied over a period to observe changes and developments.

Attrition

The reduction in the number of participants or the workforce over time, often due to resignation or retirement.

Longitudinal Study

An observational research method that follows the same subjects over a period of time, often years, to observe changes or developments.