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:

Moratorium

An identity status that characterizes those who are actively exploring alternatives in an attempt to form an identity.

Status Offense

A category of legal offenses that are only considered violations because of the age of the offender, such as truancy or underage drinking.

Illegal Matters

Issues or activities that are forbidden by law and subject to legal penalties if undertaken.

Sexual Promiscuity

A pattern of engaging in sexual activities with multiple partners or frequent, casual sex without lasting commitment.