___-based chemical treatments used for smoothing or straightening are now more readily available but still not considered completely permanent.

Contrasting lines are horizontal and vertical lines that create a hard edge and form a ___.

A hair form should be in proportion to the shape of the head and face, the length and width of the neck, and the ___ line.

A ___ profile has a receding forehead and chin.

___ lines are positioned between horizontal and vertical lines and are often used to emphasize or minimize facial features.

The regular pulsation or recurrent pattern of movement in a design is known as the ___.

Wavy, ___ hair offers the most versatility in styling.

Hair density ranges from thick to thin and is measured per square ___.

What hair design is created when the two halves of a hairstyle have equal visual weight, but are positioned unevenly?

The comparative relationship of one thing to another in hair design is called ___.

The outline of the face, head, and figure seen in a side view is known as the ___.

What hair design is created when the two halves of a hairstyle form a mirror image of each other?