The Following Questions Refer to the Evolutionary Tree in Figure

question 31

Multiple Choice

The following questions refer to the evolutionary tree in Figure 22.2.
The tree's horizontal axis is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V-Z) represent various common ancestors. Let's say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species.


-According to this tree, what percent of the species seem to be extant (i.e., not extinct) ?

• A)25%
• B)33%
• C)50%
• D)66%
• E)75%

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Definitions:

Revenues

The total income generated from the sale of goods and services before any expenses are subtracted.

Expenses

Economic costs that a company incurs through its operations to generate revenue, often categorized as operational, selling, and administrative expenses.

Revenue Account

A financial account that tracks the income generated from a company's business activities, such as sales or services provided.

Credited

A term used in double-entry bookkeeping to indicate a recording in the credit column, often signaling an increase in liabilities or a decrease in assets.