Amanda Way's career as a social reformer ____ in 1851 when, at an antislavery meeting in Indiana, she called for a state woman's rights convention.

• begin

• began

• have begun

• to have begun

The celesta, an orchestral percussion instrument, resembles ___

• a small upright piano

• how a small upright piano

• a small upright piano is

• as a small upright piano

Thomas Paine, _____, wrote Common Sense, a pamphlet that identified the American colonies with the cause of liberty.

• writer of eloquent

• whose eloquent writing

• an eloquent writer

• writing eloquent

Although beavers rarely remain submerged for more than two minutes, they can stay underwater ___ fifteen minutes before having to surface for air.

• as long

• as long as

• so long

• so long that

Protein digestion begins in the stomach ____ ends in the small intestine.

• while

• and

• how

• because

When natural gas burns, it's ___ into atoms of carbon and hydrogen.

• hydrocarbon molecules, breaking up

• broke up by hydrocarbon molecules

• hydrocarbon molecules break up

• broken up hydrocarbon molecules

_____ ballet dancers learn five basic positions for the arms and feet.

• All of

• Of every

• All

• Every

Some colonies of bryozoans, small marine animals, form ___ with trailing stems.

• creeping colonies

• which colonies creep

• creeping colonies are

• colonies creep

Ruth Bader Ginsburg argued six women's rights cases before the United States Supreme Court in the 1970's, ____

• of five winning them

• five winning of them

• of them five winning

• winning five of them

Natural selection is defined as the process ___ the course of evolution by preserving those traits best adapted for an organism's survival.

• to which directs

• of which directs it

• directs it

• that directs