Organisms with a Circulating Bodily Fluid That Is Distinct from the Fluid

question 53

Multiple Choice

Organisms with a circulating bodily fluid that is distinct from the fluid that directly surrounds the body's cells are likely to have

• A)an open circulatory system.
• B)a closed circulatory system.

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Definitions:

Interaction Term

In statistics, an interaction term is used in models to determine if the effect of two or more variables on a response variable is not additive, indicating that the variables interact in how they influence the response.

Coefficient

A numerical or constant quantity placed before and multiplying the variable in an algebraic expression.

Regression Equation

A formula that expresses the linear relationship between independent and dependent variables.

Least-Squares Regression

A statistical method used to determine a line of best fit by minimizing the sum of squares of the distances of observed values from the predicted values.