This Figure Shows Ages of Seafloor

question 10

Multiple Choice

This figure shows ages of seafloor. Which of the numbered sites is on the shallowest seafloor, based on its position?

• A) 1
• B) 2
• C) 3
• D) 4

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Definitions:

Musculocutaneous

Relating to both muscles and the skin, or a nerve in the arm that innervates the front muscles of the upper arm and the skin of the forearm.

Radial

Pertaining to structures spreading out in all directions from a central point or axis.

Ulnar

Pertaining to the ulna, one of the two long bones in the forearm, located on the side opposite the thumb.

Ulnar

Pertaining to the ulna, one of the two long bones in the forearm, located on the side opposite to the thumb.