What Organisms in the Figure Appear NOT to Be Indirectly

question 27

Multiple Choice

What organisms in the figure appear NOT to be indirectly affected by insecticide?

• A) zooplankton
• B) tadpoles
• C) phytoplankton
• D) periphyton

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Definitions:

Diminishing Marginal Returns

A principle stating that as more of a variable input is added to a fixed input, the additional output gained from each new unit of input eventually decreases.

Productivity

The measure of the efficiency of a person, machine, factory, or system in converting inputs into useful outputs.

Technical Assistance

Support provided, typically in the form of expertise or training, to help organizations, countries, or businesses improve their performance.

Isocost Line

A graphical representation in economics that shows all possible combinations of inputs that have the same total cost.