A Population of Hummingbirds with a Variety of Beak Sizes

question 94

Multiple Choice

A population of hummingbirds with a variety of beak sizes finds a new food source in a plant that has a long trumpet flower with nectar at the bottom of the trumpet. Over time, these hummingbirds develop longer beaks. This is an example of

• A) directional selection.
• B) stabilizing selection.
• C) disruptive selection.
• D) sexual selection.
• E) genetic drift.

---

Definitions:

Cash Payment

A transaction in which payment for goods or services is made in cash at the time of purchase.

FOB Shipping Point

A term indicating that the buyer takes responsibility for goods once they are shipped, including paying for shipping costs and bearing the risk of loss.

Prepaid Freight

Costs paid in advance for the transportation of goods, which is often recorded as a prepaid expense on the balance sheet.

Sales Invoice

A document issued by a seller to a buyer, recording a transaction and requesting payment for the sale of goods or services.