Consider the Following Points

question 35

Multiple Choice

Consider the following points:
a) All excavates live in environments where oxygen availability is low; b) all excavates lack mitochondria; and c) all excavates have some mitochondrial genes. Based on this information, which of the following statements is true of the excavate lineage?

• A) Their ancestors were not able to metabolize glucose.
• B) Their ancestors were eukaryotes that existed prior to the origin of mitochondria.
• C) Their ancestors had mitochondria, but the mitochondria were lost over time.
• D) Excavates are in the process of acquiring mitochondria through evolutionary adaptation.

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Definitions:

Price Fixing

An illegal or regulated agreement among competitors to maintain a certain price level for goods or services, often leading to less competitive markets and higher prices for consumers.

Market Power

The ability of a firm or group of firms to manipulate prices or output in a particular market, often due to lack of significant competition.

Elasticity Of Demand

A measure of how responsive the quantity demanded of a good or service is to a change in its price.

Mark-Up

The amount added to the cost price of goods to cover overhead and profit; it is the difference between the cost of a good or service and its selling price.