While one requires oxygen and one does ______ and anaerobic respiration are both forms of cellular respiration.

• not aerobic
• not. Aerobic
• not, aerobic
• not; aerobic

Human-made (synthetic) fibers used in clothes and many other consumer products are more durable than most natural plant ______ the manufacture of synthetic fibers requires toxic chemical solvents that can pollute air and water.

• fibers,
• fibers but
• fibers
• fibers, but

Emperor Ashoka ruled the Maurya Empire in South Asia from roughly 270 to 232 BCE. He is known for enforcing a moral code called the Law of Piety, which established the sanctity of animal ______ the just treatment of the elderly, and the abolition of the slave trade.

• life
• life;
• life:
• life,

A subseasonal weather forecast attempts to predict weather conditions three to four weeks in ______ its predictions are therefore more short-term than those of the seasonal forecast, which attempts to predict the weather more than a month in advance.

• advance,
• advance
• advance;
• advance and

In her book The Woman Warrior: Memoirs of a Girlhood Among Ghosts, author Maxine Hong Kingston examines themes ______ childhood, womanhood, and Chinese American identity by intertwining autobiography and mythology.

• of:
• of,
• of—
• of

The fine, powdery substance that covers the Moonʼs surface is called regolith. Because regolith is both readily available and high in oxygen ______ scientists have wondered whether it could be used as a potential source of oxygen for future lunar settlements.

• content and
• content,
• content
• content, and

Psychophysicist Howard Moskowitz was hired by a soda company to determine how much artificial sweetener ______ After conducting consumer taste tests, he found that no such ideal existed.

• do most people prefer in a diet drink?
• do most people prefer in a diet drink.
• most people prefer in a diet drink?
• most people prefer in a diet drink.

About 70,000 meteorites have been found on Earth. Although most meteorites are fragments of ______ hundred have been identified as being from the Moon or Mars.

• asteroids. Several
• asteroids, several
• asteroids; several
• asteroids: several

After the printing press was introduced in 1440, handwritten manuscripts from Europeʼs medieval period were often destroyed and the paper used for other purposes. In one instance, pages ______ a collection of Norse tales dating to 1270 were discovered lining a bishopʼs miter (hat).

• from:
• from,
• from
• from—

When particles are suspended in liquid (like pollen in a water glass), they will zigzag randomly through the liquid and collide with one another in perpetuity. This type of random, continuous ______ is known as Brownian motion, can be observed throughout the natural world.

• movement: which
• movement, which
• movement which
• movement. Which