Emperor penguins don’t waddle out of the ocean. They launch themselves at such a high speed that they travel up to two meters before landing. How____A layer of microbubbles on their plumage reduces friction as the penguins speed to the surface.

what is true about Mother?

A) they are able to move so fast!

B) are they able to move so fast.

C) they are able to move so fast.

D) are they able to move so fast?

While one requires oxygen and one does____and anaerobic respiration are both forms of cellular respiration—that is, they are processes by which cells break down glucose to use as energy.

Which choice completes the text so that it conforms to the conventions of Standard English?

A) not aerobic

B) not. Aerobic

C) not, aerobic  

D) not; aerobic

A study led by scientist Rebecca Kirby at the University of Wisconsin–Madison found that black bears that eat human food before hibernation have increased levels of a rare carbon isotope,____due to the higher C levels in corn and cane sugar.Bears with these elevated levels were also found to have much shorter hibernation periods on average.

Which choice completes the text so that it conforms to the conventions of Standard English?

A)carbon-13, (¹³ C)

B) carbon-13 (¹³ C)

C) carbon-13, (¹³ C),

D) carbon-13 (¹³ C),

Lucía Michel of the University of Chile observed that alkaline soils contain an insoluble form of iron that blueberry plants cannot absorb, thus inhibiting blueberry growth. If these plants were grown in alkaline soil alongside grasses that aid in iron solubilization,____Michel was determined to find out.

Which choice completes the text so that it conforms to the conventions of Standard English?

A) could the blueberries thrive.

B) the blueberries could thrive.

C) the blueberries could thrive?

D) could the blueberries thrive?

Santa Clara Pueblo artist Roxanne Swentzell’s sculpture Mud Woman Rolls On consists of five human figures made of clay and plant fiber and arranged in descending size; each figure holds the smaller one in front of it. The arrangement of the figures, according to____represents her idea that “we all come from the Earth, generation after generation.”

Which choice completes the text so that it conforms to the conventions of Standard English?

A) Swentzell

B) Swentzell,

C) Swentzell:

D) Swentzell-