Boundaries Lv Easy (Part2)

The life spans of rocksh vary greatly by species. For instance, the colorful calico rocksh (Sebastes dalli) can survive for a little over a ______ the rougheye rocksh (Sebastes aleutianus) boasts a maximum life span of about two centuries.

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

The intense pressure found in the deep ocean can affect the structure of proteins in fish’s cells, distorting the proteins’ shape. The chemical trimethylamine N-oxide (TMAO) counters this effect, ensuring that proteins retain their original ______ is found in high concentrations in the cells of the deepest-dwelling fish.

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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.

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After the printing press was introduced in 1440, handwritten manuscripts from Europe’s 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 bishop’s miter (hat).

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After the United Kingdom began rolling out taxes equivalent to a few cents on single-use plastic grocery bags in 2011, plastic-bag consumption decreased by up to ninety ______ taxes are subject to what economists call the “rebound effect”: as the change became normalized, plastic-bag use started to creep back up.

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In her two major series “Memory Test” and “Autobiography,” painter Howardena Pindell explored themes ______ healing, self-discovery, and memory by cutting and sewing back together pieces of canvas and inserting personal artifacts, such as postcards, into some of the paintings.

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

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Polyphenols are organic compounds ______ among their many roles, provide pigment that helps protect plants against ultraviolet radiation from sunlight.

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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.

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The ne, powdery substance that covers the Moon’s 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.

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Psychophysicist Howard Moskowitz was hired by a soda company to determine how much articial sweetener ______ After conducting consumer taste tests, he found that no such ideal existed: participants expressed a wide range of preferences for different blends of sweetener, carbonization, and avoring.

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Typically, underlines, scribbles, and notes left in the margins by a former owner lower a book’s ______ when the former owner is a famous poet like Walt Whitman, such markings, known as marginalia, can be a gold mine to literary scholars.

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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.

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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.

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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.

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

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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.

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