The Hypothesis That Birds Evolved from Dinosaurs Is Potentially Confusing

question 35

Multiple Choice

The hypothesis that birds evolved from dinosaurs is potentially confusing because dinosaurs-at least the ones thought to be the ancestors of birds-did not fly. Why do biologists still hold to this hypothesis despite this point?

• A) Dinosaurs may have used feathers to attract mates.
• B) Feathers in dinosaurs are believed to have served as insulation.
• C) Dinosaurs may have used feathers as an aggressive display to ward off enemies.
• D) All of the above are supporting evidence for this hypothesis.

---

Definitions:

Cash Equivalents

Short-term, highly liquid investments that are readily convertible to known amounts of cash and are subject to insignificant risk of changes in value.

Current Liabilities

Current liabilities are a company's debts or obligations that are due to be paid to creditors within one year.

Long-term Debt

Debt obligations that are due for repayment in more than one year, often used by businesses to finance operations or acquisitions.

Financial Ratios

Relationships determined from a firm’s financial information and used for comparison purposes.