Conventions of Usage

During a 2018 research expedition off the coast of Monterey Bay, oceanographers monitored the glowing patterns of bioluminescent dinoflagellates. Whenever the research vessel disturbed the water surface, thousands of microscopic organisms emitted brilliant blue flashes. This sudden light reaction discourages potential predators and allowed the science team to track surface current dynamics in real time.

Which choice best maintains consistent verb tense in the passage?

Read the sentence below:

The lead astrophysicist noted that the quiet, isolated setting of the mountain observatory was extraordinarily conducive for long periods of uninterrupted data analysis.

Which choice best completes the sentence idiomatically and grammatically?

Read the sentence below.

The archival manuscript was entirely devoid from historical details that could verify the author's identity, leaving researchers to rely solely on stylistic analysis.

Which of the following choices produces a grammatically and idiomatically correct sentence?

Read the sentence below from an article on materials science.

"The synthetic polymer developed by the research team proved exceptionally susceptible for chemical erosion when exposed to high ambient temperatures."

Which of the following choices replaces the underlined phrase with the idiomatically correct preposition?

Read the sentence below:

During an investigation into spatial memory consolidation, cognitive neuroscientists observed that chronic sleep restriction was particularly detrimental for a subject's ability to navigate novel virtual environments.

Which of the following choices produces a grammatically correct and idiomatically appropriate sentence?

Read the sentence below. Which choice provides the idiomatically correct preposition for the underlined portion?

In his monograph on modern typography, the design critic argued that minimalist aesthetics are not necessarily synonymous to functional design.

Read the following sentence from an article on marine biology:

"In her study on deep-sea hydrothermal vent organisms, marine biologist Dr. Elena Vance observed that specialized heat-shock proteins rendered certain tube worm species virtually impervious for the scalding, mineral-rich fluids emitted by the vents."

Which choice is idiomatically correct for the underlined portion?

Read the sentence below from an essay on architectural history.

During the restoration of the eighteenth-century cathedral, the lead preservationist emphasized strict adherence with traditional masonry techniques to preserve structural authenticity.

Which choice best completes the sentence according to the conventions of standard written English?

The following sentence is missing a pronoun. To ensure grammatically correct pronoun-antecedent agreement, what word should be placed in the blank?

During the mid-nineteenth century, naturalists frequently traveled alongside surveyors to document the flora of the American West. While the surveyors mapped the rugged terrain, the naturalists collected specimens of rare wildflowers. Because they were often preoccupied with the physical demands of the journey, many specimens remained undocumented for decades.

Which of the following choices most effectively clarifies the underlined pronoun in the passage?

The following passage describes a challenge in modern astronomy. What is the correct present-tense form of the verb 'to explain' that completes the passage to maintain proper subject-verb agreement?

In the early 1950s, computer pioneer Grace Hopper worked on the UNIVAC I computer, a machine designed for business and scientific applications. At the time, programming required writing tedious machine code that was highly prone to error. Hopper believed that programming languages should be written in English rather than mathematical symbols. Consequently, she developed the A-0 compiler, a revolutionary program that translates mathematical code into machine-readable instructions. While her colleagues initially dismissed her ideas, asserting that computers could only do arithmetic, Hopper, along with a small team of dedicated programmers, perseveres and eventually transformed the way software is written today.

Which choice best completes the sentence to maintain a consistent verb tense throughout the paragraph?

During the archaeological dig, the site director explained to the assistant and I that if one wants to catalog an artifact properly, you must record it's dimensions immediately.

Which of the following choices is the most grammatically correct replacement for the underlined portion of the sentence?

Although the lead scientist preferred to run the experiment using a new set of variables, the lab director insisted in adhering to the original protocol.

Which choice best replaces the underlined portion of the sentence?

The passage below contains two blanks. Fill in each blank with the correct phrase from the choices provided to ensure the passage is grammatically correct and free of misplaced or dangling modifiers.

For blank 1, choose and type exactly one of the following:
* the city council renovated the historic theater
* the historic theater was renovated by the city council

For blank 2, choose and type exactly one of the following:
* which was designed in the 1920s and now shines brightly over the plaza
* which now shines brightly over the plaza designed in the 1920s

Read the passage below. To ensure that the introductory phrase logically modifies the subject of the sentence, which researcher's name should be placed in the blank?