The Following Questions Refer to the Evolutionary Tree Shown Below

question 8

Multiple Choice

The following questions refer to the evolutionary tree shown below.
The horizontal axis of the cladogram depicted below is a timeline that extends from? 100 000 years ago to the present; the vertical axis represents nothing in particular. The labelled 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.

-Which of the five common ancestors, labelled V-Z, has given rise to the greatest number of species, both extant and extinct?

• A)V
• B)W
• C)Z
• D)Both W and Z can be considered to have given rise to the greatest number of extant and extinct species.
• E)Both X and Y can be considered to have given rise to the greatest number of extant and extinct species.

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Definitions:

Demand Function

An equation that relates the quantity of a good demanded by consumers to its price and other factors like income and prices of related goods.

Income Elasticity

Measures how the demand for a good or service changes relative to a change in consumers' income levels.

Bagels

A dense bread product, often shaped into a ring, made from dough that is boiled before it is baked.

Demand Function

A mathematical model expressing the quantity demanded of a good or service as a function of its price, and possibly other factors.