The Presence of Vestigial Hip and Leg Bones in Boas

question 5

Multiple Choice

The presence of vestigial hip and leg bones in boas and pythons is considered evidence for what evolutionary link?

• A)A snake was the common ancestor for the tetrapods.
• B)Snakes have limbed ancestors.
• C)Some snake species needed limbs probably for evading predators by climbing.
• D)None,because with the new molecular genetics studies,the presence of vestigial structures is irrelevant to evolutionary biology.

---

Definitions:

Geographic Area

A specific location or region defined by natural or artificial boundaries.

Bid-rigging

A form of fraud in which a commercial contract is promised to one party even though for the sake of appearance several other parties also present a bid.

Collusion

A secret agreement or cooperation between parties for a deceitful or fraudulent purpose, especially to cheat or deceive others.

Restrictive Trade Practice

Business practices that limit competition or control prices, often viewed negatively and regulated by law.