Two Species of Protozoa Are Competing in a Laboratory Environment

question 25

Multiple Choice

Two species of protozoa are competing in a laboratory environment.A third species is introduced, with no other changes made to the experimental conditions.The population size of the third species gradually decreases for several days, and then it eventually goes extinct.What is the most likely reason this species went extinct?

• A) It reached its carrying capacity.
• B) It found the new environment toxic.
• C) Introduced species always inevitably go extinct.
• D) It could not compete with the two original species.
• E) It overshot its carrying capacity and crashed.

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Definitions:

Revenue

The earnings a company garners from its principal operations, often through selling products and services to its clientele.

Supply

The total amount of a particular good or service that is available to consumers at a given price level in a given time period.

Price Elasticity

A measure of how much the quantity demanded of a good responds to a change in its price; high elasticity indicates sensitivity to price changes.

Supply Curve

A graphical representation that shows the relationship between the price of a good or service and the quantity of that good or service that suppliers are willing and able to provide.