When Might You Want to Create a Query Based on Multiple

question 20

Essay

When might you want to create a query based on multiple tables? What should you be careful of when creating a creating based on multiple tables?

---

Definitions:

Density-Dependent Factor

An environmental factor whose effects on a population change as population density changes; tends to retard population growth as population density increases and enhance population growth as population density decreases. Compare with density-independent factor.

Negative Feedback

A regulatory mechanism in which a stimulus causes an opposite output in order to maintain an ideal level of whatever is being regulated.

Type-II Survivorship

A survivorship curve in which individuals are equally likely to die at any age, representing a relatively constant mortality rate throughout the organism's life.

Exponential Growth

Growth that occurs at a rate that becomes ever more rapid in proportion to the growing total number or size.