Why Do Slowly Degraded Molecules Like DDT Have a Tendency

question 18

Multiple Choice

Why do slowly degraded molecules like DDT have a tendency to accumulate in creatures higher in the food chain?

• A)Since it takes more energy to feed a large animal, they take in more of the toxin.
• B)Since things higher on the food chain are large they have more fat, which means they can store more of the toxin.
• C)Larger animals do not excrete toxins as efficiently as smaller animals.
• D)Carnivores do not have the needed enzyme to biodegrade the toxin that herbivores have.
• E)none of the above

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Definitions:

Independent Variable

In an experimental setup, it's the factor that is intentionally manipulated to measure its impact on the dependent variable.

Multiple Regression Model

An analytical approach that connects a dependent variable with two or more independent variables.

Multiple Regression Analysis

A statistical technique that models the relationship between a dependent variable and two or more independent variables by fitting a linear equation to observed data.

Multicollinearity

A condition in regression analysis where two or more predictor variables are highly correlated, making it difficult to isolate the impact of each variable.