Praxis 5511
Question 1 of 5.
Various species of fish have different oxygen requirements for survival. The solubility of oxygen in water decreases as temperature rises. Based on the table and graph shown, which of the following species requires the highest concentration of dissolved oxygen for survival?
A. Catfish
B. Carp
C. Herring
D. Trout
Explanation: Trout have an optimal survival temperature of 15 °C. At that cooler temperature, oxygen is more soluble in water (around 11–12 mg/L), higher than at the warmer temperatures favored by the other species, so trout require—and live in—water with the highest dissolved-oxygen concentration.
Question 2 of 5.
Which of the following types of pathogens cause influenza in humans?
A. Bacterium
B. Virus
C. Fungus
D. Protozoan
Explanation: Influenza is caused by influenza viruses (family Orthomyxoviridae). Bacteria, fungi, and protozoa can cause other types of infections, but the flu is specifically a viral disease.
Question 3 of 5.
Which of the following articles will best help students understand the literary context of Langston Hughes’s poetry?
A. Technological Modernization and its Influence on Literary Forms
B. The Transcendentalists: Philosophical Beliefs Inspire a Literary Movement
C. How Economic Migration Contributed to an Artistic Revival
D. The Lost Generation: New Methods of Waging War Lead to New Approaches to Art
Explanation: Langston Hughes was a central figure of the Harlem Renaissance—a flourishing of Black art and literature in northern cities driven largely by the Great Migration of African Americans out of the rural South. An article on how economic migration spurred an artistic revival directly illuminates the social and cultural forces that shaped Hughes’s work.
Question 4 of 5.
The period of intense intellectual and artistic endeavor known as the Renaissance began in Italy in the mid-fourteenth century and centered on the ____.
A. recovery of classical learning and Christian theology
B. rejection of transferring pollen between the flowers of a plant
C. return to a medieval worldview of the primacy of the Church and the veneration of images in worship
D. revival of learning in Latin and Greek as well as the spread of writing in the vernacular
Explanation: The Renaissance—literally “rebirthâ€â€”marked a renewed interest in the literature, philosophy, and languages of ancient Greece and Rome. Scholars studied Latin and Greek texts and began writing serious works in their native tongues, breaking from the exclusively Church-centered medieval tradition.
Question 5 of 5.
A circular playground has an area of 314 square feet. Which of the following is the best estimate of the radius, in feet, of the playground?
A. 10 feet
B. 25 feet
C. 50 feet
D. 100 feet
Explanation: The area of a circle is given by A = πr². Given A = 314 ft², we approximate π ≈ 3.14, so r² ≈ 314 ÷ 3.14 ≈ 100, and r ≈ √100 = 10 feet. Choices B, C, and D yield areas far larger than 314 ft² when computed (e.g., r = 25 gives A ≈ 1962.5 ft²).