The Wings of a Bird and the Wings of a Bat

question 8

Multiple Choice

The wings of a bird and the wings of a bat both form from the front appendages (arms) .The bird wing is covered by feathers and the bat wing consist of a thin layer of skin stretched between the "finger" bones. Are the wings of the bird and bat homologous or analogous?

• A) homologous since they evolved from the same body part
• B) analogous: birds' flight requires feathers and bats use skin; both are wings, but they evolved differently
• C) both: homologous in that they both evolved from a front appendage, but analogous in that they evolved differently
• D) neither since birds and bats do not share a recent common ancestor

---

Definitions:

Automobile Tire

A rubber-based component fitted around the rim of a car wheel, providing traction and absorbing road shocks.

Concentration Ratios

Measures that indicate the extent of market control by leading firms in an industry, typically expressed as a percentage of total industry sales or output.

Imported Products

Goods or services brought into one country from another for sale, which can diversify consumer options and contribute to economic dynamics.

Interindustry Competition

The competition for sales between the products of one industry and the products of another industry.