-Examine the Figure

question 18

Multiple Choice

-Examine the figure. Zooplankton feed on phytoplankton that are contaminated by PCBs in the water. Which comparison correctly describes the concentration of PCBs in different trophic levels?

• A)Primary consumers have higher PCB concentration than secondary consumers.
• B)Quaternary consumers have the highest PCB concentration.
• C)Tertiary consumers have the highest PCB concentration.
• D)Cod has a higher PCB concentration than the secondary consumers.

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Definitions:

Complementary Demands

A market condition where the demand for two or more goods is linked because the goods are used together, leading to a rise in demand for one affecting the other positively.

Seasonal Fluctuations

Regular changes in patterns or levels of activity in data or phenomena influenced by seasonal conditions.

Tracking Signals

Indicators used in inventory management and demand forecasting to evaluate the accuracy of predictions and make adjustments.

Exponential Smoothing

A forecasting technique that uses weighted averages of past observations to forecast future values, giving more weight to recent observations.