Figure 53.6 -Treehoppers (A Type of Insect)produce Honeydew,which Ants Use for Food.Treehoppers

question 11

Multiple Choice

Figure 53.6
-Treehoppers (a type of insect) produce honeydew,which ants use for food.Treehoppers have a major predator,the jumping spider.Researchers hypothesized that the ants would protect the treehoppers from the spiders.In an experiment,researchers followed study plots with ants removed from the system and compared them to a control plot.In Figure 53.6,what can you conclude?

• A)Ants do somehow protect the treehoppers from spiders.
• B)Ants eat the honeydew produced by treehoppers
• C)Ants reduce the numbers of treehoppers.
• D)No specific conclusions can be drawn from this figure.
• E)Treehoppers do not produce honeydew in July and are not protected by the ants.

Distinguish between constant, increasing, and decreasing marginal costs and benefits.

Calculate total profit or benefit given data on marginal costs and benefits.

Evaluate decisions using the concept of opportunity cost and sunk costs.

Determine the optimal allocation of limited resources across different activities to maximize total benefit or score.

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Definitions:

Chance Alone

A situation where outcomes are determined purely by randomness, without any predictable or deterministic influence.

Scientific Name

A unique, formal system of naming biological species utilizing a two-part Latin name consisting of the genus and species.

Specific Epithet

The second part of a species' scientific name, uniquely identifying a species within a genus.

Genus Name

The part of the scientific name in binomial nomenclature that classifies a group of closely related species; it comes first and is capitalized.