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

---

Definitions:

Self-Destructive

Engaging in behavior that is harmful or potentially harmful towards oneself.

Function Normally

The ability of an organism, system, or mechanism to operate or perform within its expected parameters or conditions.

Sociocognitive View

A perspective in psychology that emphasizes the role of social interaction and cognitive processes in understanding behavior and mental states.

Dissociative Identity Disorder

A severe form of dissociation, a mental process which produces a lack of connection in a person's thoughts, memory, and sense of identity.