The Sugar Glider in Australia and the Flying Squirrel in North

question 43

Multiple Choice

The sugar glider in Australia and the flying squirrel in North America are both small mammals with large expanses of loose skin between their fore- and hind-limbs allowing them to glide from tree to tree within their respective forest habitats.These two species are distantly related but are very similar in their overall appearance.Darwin's explanation for their similarity is that

• A) both are descendants from a recent common ancestor.
• B) each have adapted in very similar ways to similar habitats.
• C) the similarity of the two unrelated species is simply coincidence.
• D) the two species were created to have similarities.
• E) the two species must be related to possess such like qualities.

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Definitions:

Price Ceiling

Government-imposed maximum legal price.

Price Floor

Government-imposed minimum price (used almost exclusively to keep agricultural commodity prices up).

Productivity

Output per unit of input; efficiency with which resources are used.

Acre of Land

A unit of area used in the United States and the United Kingdom, equivalent to 43,560 square feet.