Echolocation enables navigation by determining the distance of objects in the ____________ transmit sound and receive the echo that bounces off of the object in their two ears.
A) environment animals
B) environment: animals
C) environment, animals
D) environment while animals
B) environment: animals
Essential to the process of photosynthesis _______ organelles called chloroplasts store energy from sunlight.
A) small
B) ; small
C) , small
D) with small
C) , small
Joseph Conrad published Heart of Darkness in 1899 with a focus on imperialists and _______ exploitation of Africans.
A) their
B) its
C) his
D) one's
A) their
Despite facing the onset of early deafness at age 28, __________ an epic achievement that combines instruments and voices in a powerful message of hope.
A) the Ninth Symphony composed by Beethoven is
B) it was Beethoven who composed the Ninth Symphony,
C) the Ninth Symphony was composed by Beethoven,
D) Beethoven composed the Ninth Symphony,
D) Beethoven composed the Ninth Symphony,
J.R.R. Tolkien ______ regularly met with other English authors such as C.S. Lewis and Charles Williams to discuss their works in progress.
A) a member of the Inklings
B) , a member of the Inklings
C) a member of the Inklings,
D) , a member of the Inklings,
D) , a member of the Inklings,
In 2000, the UK issued polymer banknotes and is phasing out paper currency ________ France still uses paper euros.
A) but
B) , but
C) , however
D) , however,
B) , but
Studies vary in their ________ there is significant evidence that driving with headphones compromises awareness while driving.
A) conclusions; however,
B) conclusions, however,
C) conclusions, however;
D) conclusions however,
A) conclusions; however,
Charles Frederick Worth created high quality, custom clothing, _______ Paris as the fashion capital of the world.
A) establishes
B) establishing
C) established
D) having established
B) establishing
In an attempt to encourage Russians to conform to European fashions, ____________.
A) a beard tax was instituted by Peter the Great.
B) it was Peter the Great who instituted a beard tax.
C) Peter the Great instituted a beard tax in 1698.
D) Peter the Great's beard tax was instituted.
C) Peter the Great instituted a beard tax in 1698.
Giving insight into her writing technique for audiences who do not share similar __________ Flannery O'Connor notes that for the "almost-blind you draw large and startling figures."
A) values,
B) values
C) values;
D) values.
A) values,
The Center for Disease Control recommends the following sleep ____________ a consistent routine, dark environment, comfortable temperature, and limited caffeine before bed.
A) hygiene tips
B) hygiene tips:
C) hygiene tips;
D) hygiene tips,
B) hygiene tips:
Solzhenitsyn published One Day in the Life of Ivan Denisovitch, a work that exposed life in the Russian political prison _________ "for the ethical force he pursued the traditions of literature," the Nobel Foundation awarded him in 1970.
A) camps praising Solzhenitsyn
B) camps, praising Solzhenitsyn
C) camps. Praising Solzhenitsyn
D) camps for praising Solzhenitsyn
B) camps, praising Solzhenitsyn
Pissarro is called the "inventor" of Impressionism. Today, however, Monet ________ considered by most to be the master of impressionism.
A) will be
B) is
C) was
D) had been
B) is
In a series of ongoing studies, researchers at the University of Washington ___________ optomechanics, a fusion of light and mechanical motion.
A) used
B) were using
C) will use
D) are using
D) are using
Writing Things Fall Apart in response to Conrad's Heart of Darkness, Chinua Achebe _________ his main character Okonkwo in a Nigerian setting rather than one in the Congo.
A) places
B) have placed
C) will place
D) place
A) places
When cities replace gardens with pavement and buildings, "urban heat islands" __________ a spike in temperatures, increased pollution, and heat-related illnesses.
A) occur; causing
B) occur. Causing
C) occur causing
D) occur, causing
D) occur, causing
Marie Curie used her husband's electrometer to measure the presence of ________ produced higher levels than uranium itself.
A) radiation; two uranium minerals, pitchblende and torbenite;
B) radiation; two uranium minerals, pitchblende and torbenite,
C) radiation; two uranium minerals, pitchblende and torbenite
D) radiation, two uranium minerals, pitchblende and torbenite,
B) radiation; two uranium minerals, pitchblende and torbenite,
Eliot's famous poem "The Waste _______ had once had a different title.
A) Land,"
B) Land" -
C) Land"
D) Land":
C) Land"
Many people like online shopping. Advantages such as ease of use or the availability of an unusual item or avoiding an intrusive salesperson ________ to consumers.
A) appeal
B) appeals
C) is appealing
D) has appealed
A) appeal
Volta, Davy, and Swan all played key roles in developing the lightbulb; Thomas Edison built on _________ discoveries to develop a practical lightbulb.
A) they're
B) their
C) there
D) his
B) their
The royalists championed the interests of the aristocracy and large _________ to reverse the political changes of the French Revolution.
A) landowners, seeking
B) landowners: seeking
C) landowners. Seeking
D) landowners; seeking
A) landowners, seeking
Studies have noted the negative effects of screen ______ increased pain, especially for adults with diabetes; and a negative self-identity, often increasing the risk for obesity.
A) time; increased risk of OCD obsessive compulsive disorder for preteens
B) time; increased risk of OCD, obsessive compulsive disorder, for preteens,
C) time: increased risk of OCD, obsessive compulsive disorder, for preteens,
D) time: increased risk of OCD, obsessive compulsive disorder, for preteens;
D) time: increased risk of OCD, obsessive compulsive disorder, for preteens;
The character Henry Jekyll unintentionally ______ his inhuman, cruel double when he creates Edward Hyde.
A) liberates
B) liberated
C) will liberate
D) had liberated
A)liberates
The Center for Disease Control recommends that _________.
A) 150 minutes of moderate exercise and 2 strength sessions are completed by adults every week.
B) adults complete a weekly exercise regimen of 150 minutes of moderate exercise and 2 strength sessions.
C) a weekly exercise regimen of 150 minutes of moderate exercise and 2 strength sessions are accomplished by adults.
D) 150 minutes of moderate exercise and 2 strength sessions are finished by adults every week.
B) adults complete a weekly exercise regimen of 150 minutes of moderate exercise and 2 strength sessions.
Recent discoveries reveal that octopuses and squids _____ their RNA with red ink but leave their DNA unchanged.
A) edits
B) is editing
C) will edit
D) edit
D) edit