How Does Phosphorus Normally Enter Ecosystems

question 43

Multiple Choice

How does phosphorus normally enter ecosystems?

• A) cellular respiration
• B) photosynthesis
• C) rock weathering
• D) vulcanism
• E) atmospheric phosphorous gas

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Definitions:

Stackelberg Model

A strategic game in economics where one firm, the leader, sets its output level first, and then the follower firms set their output levels, taking the leader's output as given.

Oligopoly Model

An economic model that describes a market structure in which a few firms dominate the industry and have the ability to influence prices and market outcomes.

Competitive Market

A market structure in which many firms offer products or services that are similar, leading to high levels of competition.

Remarkable Healing

Significant or extraordinary recovery from illness or injury.