Which of the Following Could Be Considered the Most Recent

question 10

Multiple Choice

Which of the following could be considered the most recent common ancestor of living tetrapods?

• A) a sturdy-finned, shallow-water lobe-fin whose appendages had skeletal supports similar to those of terrestrial vertebrates
• B) an armored, jawed placoderm with two pairs of appendages
• C) an early ray-finned fish that developed bony skeletal supports in its paired fins
• D) a salamander that had legs supported by a bony skeleton but moved with the side-to-side bending typical of fishes

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Definitions:

Commission

A fee or percentage of a sale paid to an agent or employee for facilitating or completing a transaction.

Real Estate Broker

A licensed professional who acts as an intermediary between sellers and buyers of real estate, facilitating transactions for a commission.

Listing Contract

A contractual agreement between a property owner and a real estate broker authorizing the broker to find a buyer or tenant.

Open Listing

A non-exclusive contract allowing a property owner to sell their property themselves or to engage multiple agents without any obligation to pay commission except to the one who brings a valid offer.