Positive Feedback Has Occurred When

question 74

Multiple Choice

Positive feedback has occurred when

• A) an increase in blood sugar increases the secretion of a hormone that stimulates the movement of sugar out of the blood.
• B) a decrease in blood sugar increases the secretion of a hormone that increases the conversion of glycogen to glucose.
• C) uterine contractions needed for the birthing process are expedited by the pressure of a moving baby in its mother's uterus.
• D) an increase in calcium concentration increases the secretion of a hormone that promotes the storage of calcium in bone.
• E) a decrease in blood calcium increases the amount of the hormone that causes the release of calcium from bone.

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Definitions:

Sample Mean

The average of a set of numerical values drawn from a sample of a population, used as an estimate of the population mean.

Margin Of Error

The amount of error that can be tolerated in the results of a poll or survey, indicating the potential deviation from the true population parameter.

Confidence Interval

A spectrum of numbers, extracted from sample observations, presumed to hold the value of a not yet identified population characteristic.

Sample Mean

The average value of a set of data points taken from a larger population, used as an estimate of the population mean.