Net Primary Production Is

question 108

Multiple Choice

Net primary production is

• A) heterotrophic production per unit of land per unit of time.
• B) energy that photosynthetic organisms make available to other organisms over a given period of time.
• C) heterotrophic production minus autotrophic production per unit of land per unit of time.
• D) energy made by autotrophs minus energy consumed by heterotrophs, and measured as biomass.
• E) energy stored by secondary consumers from primary biomass.

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Definitions:

Interval Variables

Interval variables are a type of quantitative variable that have ordered values with consistent differences but no true zero point, such as temperature in Celsius.

T-Table Values

Values in a table that represent critical values of the t-distribution used in hypothesis testing, dependent on the desired significance level and degrees of freedom.

Expected Value

The weighted average of all possible values that a random variable can take on, with the weights being the probabilities of each outcome.

Simple Linear Regression

A method for modeling the relationship between a single independent variable and a dependent variable by fitting a linear equation to observed data.