Bottlenecks

question 63

Multiple Choice

Bottlenecks:

• A) occur only in one-way networks.
• B) occur only in two-way networks.
• C) occur in both one-way and two-way networks.
• D) are a positive externality associated with networks.

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Definitions:

Appendicular Skeleton

The portion of the skeletal system that includes the limbs and the girdles (shoulder bones and pelvic bones) that connect them to the axial skeleton.

Pectoral Girdle

The structure that attaches the arms to the axial skeleton.

Pelvic Girdle

The structure that attaches the legs to the axial skeleton.

Second Cervical Vertebra

Also known as the axis, it is a bone in the neck that allows the head to rotate.