What Is the Suggested Mechanism by Which the Presence of Insecticide

question 3

Multiple Choice

What is the suggested mechanism by which the presence of insecticide influences phytoplankton abundance?

• A) Periphyton abundance is reduced by insecticide.
• B) Tadpoles consume phytoplankton when periphyton is reduced in abundance.
• C) The reduction of zooplankton by insecticide reduces herbivory on phytoplankton, which increases abundance.
• D) Inert chemicals in the insecticide include nitrogen, which promotes phytoplankton growth.

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Definitions:

Interindustry Competition

The competition for sales between the products of one industry and the products of another industry.

Oligopolistic Industries

Markets dominated by a small number of large firms, leading to a high level of market concentration.

Bidding Down

The process where the price of an item, service, or contract decreases due to competitive bidding, for example, in auctions or procurement processes.

Particular Product

A specific item or good that is produced and available for sale or distribution.