MS Sample Set 5, Round 8 from NSB
What is the largest number of sides possible for a regular polygon that tessellates the plane?
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The hypotenuse of a right triangle is 9 feet, and one leg is 6 feet. What is the area, in square feet, of the triangle in simplest radical form?
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Besides xylem and phloem, what is the third tissue layer that comprises the stele in eudicot roots?
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Give the common names of two of the principal species of Pacific salmon.
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What is the term for the minimum amount of fissile material required for a chain reaction to be self-sustaining?
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What is the name of a device which consists of dissimilar metals joined together at one end that is used as a sensor for measuring temperature?
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The mechanical advantage of a block and tackle depends on which of the following? W) The size of the rope X) The length of the rope Y) The diameter of the wheels Z) The number of sections of rope
W: W) The size of the rope
X: X) The length of the rope
Y: Y) The diameter of the wheels
Z: Z) The number of sections of rope
Answer: Z) Z) The number of sections of rope
Which of the following situations produces the MOST power? W) 160 newton force acting over 20 meters in 32 seconds X) 160 newton force acting over 2 meters in 3.2 seconds Y) 16 newton force acting over 20 meters in 3.2 seconds Z) 16 newton force acting over 200 meters in 3.2 seconds
W: W) 160 newton force acting over 20 meters in 32 seconds
X: X) 160 newton force acting over 2 meters in 3.2 seconds
Y: Y) 16 newton force acting over 20 meters in 3.2 seconds
Z: Z) 16 newton force acting over 200 meters in 3.2 seconds
Answer: Z) Z) 16 newton force acting over 200 meters in 3.2 seconds
Give the class of mollusks in which squid would be classified.
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Unlike other mollusks, cephalopods have which of the following characteristics? W) Gills X) Radula Y) Open circulatory system Z) Closed circulatory system
W: W) Gills
X: X) Radula
Y: Y) Open circulatory system
Z: Z) Closed circulatory system
Answer: Z) Z) Closed circulatory system
Assuming that all of the following two dimensional shapes have the same area, which has the least perimeter? W) Triangle X) Circle Y) Trapezoid Z) Square
W: W) Triangle
X: X) Circle
Y: Y) Trapezoid
Z: Z) Square
Answer: X) X) Circle
At a special showing of “The Magic Flute,” all 300 tickets were sold for a total of \$5,360. If an adult ticket was \$20 and a youth ticket was \$12, how many adult tickets were sold?
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For a certain genetic disorder in humans, the mother always passes the disease to all of her children, but a father never passes it to any of his children. Which of the following explanations best explains this phenomenon? W) The gene for the disease is located on the X-chromosome X) The gene is dominant and is located on an autosomal chromosome Y) The gene is located on ribosomal DNA Z) The gene is located on mitochondrial DNA
W: W) The gene for the disease is located on the X-chromosome
X: X) The gene is dominant and is located on an autosomal chromosome
Y: Y) The gene is located on ribosomal DNA
Z: Z) The gene is located on mitochondrial DNA
Answer: Z) Z) The gene is located on mitochondrial DNA
What is the most stable isotope of rutherfordium?
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What kind of rock fragments are produced when magma is torn apart by volcanic eruptions?
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What was the name of the space probe, launched in 2001, that orbited Mars to measure elements in its crust and search for signs of water?
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Sediment with a diameter between 2 millimeters and 4 millimeters would be classified as which of the following? W) Silt X) Coarse sand Y) Medium sand Z) Cobble
W: W) Silt
X: X) Coarse sand
Y: Y) Medium sand
Z: Z) Cobble
Answer: Y) Y) Medium sand
When a free neutron undergoes beta decay, what three particles does it form?
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Which of the following is the most likely effect on the remaining bacteria after killing 90% of bacteria with antibacterial soap? W) They will reproduce and form a colony of bacteria that are more resistant X) They will die because there are not enough bacteria left to reproduce Y) They will relocate Z) They can no longer cause infections because their numbers are too low
W: W) They will reproduce and form a colony of bacteria that are more resistant
X: X) They will die because there are not enough bacteria left to reproduce
Y: Y) They will relocate
Z: Z) They can no longer cause infections because their numbers are too low
Answer: W) W) They will reproduce and form a colony of bacteria that are more resistant
Give the scientific names of the three small bones found in the human ear.
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Which of the following characteristics is NOT true of cannonball jellyfish? W) They can make up more than 16% of biomass in shallow inshore areas off the southeastern coast of the United States X) They commonly sting humans Y) One of their main predators is the leatherback sea turtle Z) They can reproduce both sexually and asexually
W: W) They can make up more than 16% of biomass in shallow inshore areas off the southeastern coast of the United States
X: X) They commonly sting humans
Y: Y) One of their main predators is the leatherback sea turtle
Z: Z) They can reproduce both sexually and asexually
Answer: X) X) They commonly sting humans
What is the genus of the oldest known vertebrate to show viviparity?
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Evaluate: $$\frac{10!}{8!\,3!}$$
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Harry bought a shirt that was marked 50% off the sale price, which was 40% off the original price. Providing your answer as a decimal to the nearest tenth, after paying a tax of 8%, what percent of the original sticker price did he pay?
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In a transverse wave, the medium vibrates in which of the following ways? W) In a direction opposite the wave direction X) At right angles to the wave direction Y) In the same direction as the wave Z) At a 45 degree angle to the wave direction
W: W) In a direction opposite the wave direction
X: X) At right angles to the wave direction
Y: Y) In the same direction as the wave
Z: Z) At a 45 degree angle to the wave direction
Answer: X) X) At right angles to the wave direction
Name three ferromagnetic elements.
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What is the name of the branch of science specifically concerned with the study of fungi?
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The beta-galactosidase enzyme aids in lactose digestion by separating lactose into what two monosaccharide molecules?
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Which of the following nutrients is most often limiting in freshwater aquatic ecosystems? W) Carbon X) Nitrogen Y) Phosphorus Z) Sulfur
W: W) Carbon
X: X) Nitrogen
Y: Y) Phosphorus
Z: Z) Sulfur
Answer: Y) Y) Phosphorus
What is the common name of the only penguin that lives north of the equator in the wild?
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Which of the following does the slope on a distance-time graph represent? W) Velocity X) Acceleration Y) Displacement Z) Motion
W: W) Velocity
X: X) Acceleration
Y: Y) Displacement
Z: Z) Motion
Answer: W) W) Velocity
In a second-class lever, where is the fulcrum located: 1) between the input and the output forces; 2) closer to the output force than the input force; or 3) closer to the input force than the output force?
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Which of the following types of sediments came from shells and skeletons of animals? W) Terrigenous X) Sulfurous Y) Hydrogenous Z) Calcareous
W: W) Terrigenous
X: X) Sulfurous
Y: Y) Hydrogenous
Z: Z) Calcareous
Answer: Z) Z) Calcareous
What are the names of the two irregularly shaped moons of Mars?
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Which of the following elements has the highest melting point at standard atmospheric pressure? W) Tungsten X) Thallium Y) Gold Z) Copper
W: W) Tungsten
X: X) Thallium
Y: Y) Gold
Z: Z) Copper
Answer: W) W) Tungsten
What is the kinetic energy, in joules, of a 70 kilogram tiger running at a speed of 8 meters per second?
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Which of the following countries generates the greatest share of its electricity from wind power? W) Denmark X) Spain Y) Germany Z) United States
W: W) Denmark
X: X) Spain
Y: Y) Germany
Z: Z) United States
Answer: W) W) Denmark
By name or number, rank from greatest to least the total amount of each of the following four products produced from crude oil in the U.S. in 2009: 1) Jet fuel; 2) Gasoline; 3) Diesel; 4) Heating oil.
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If a polyhedron had seven faces, exactly six of which were triangles, which of the following could it be? W) Hexagonal prism X) Hexagonal pyramid Y) Pentagonal prism Z) Pentagonal pyramid
W: W) Hexagonal prism
X: X) Hexagonal pyramid
Y: Y) Pentagonal prism
Z: Z) Pentagonal pyramid
Answer: X) X) Hexagonal pyramid
Solve for real numbers x if $$\sqrt{9x - x^2} > 0$$.
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Which of the following is an example of a well-known group of extinct marine arthropods that existed in abundance during the lower Paleozoic? W) Brachiopods X) Ammonites Y) Trilobites Z) Nautiluses
W: W) Brachiopods
X: X) Ammonites
Y: Y) Trilobites
Z: Z) Nautiluses
Answer: Y) Y) Trilobites
If due north is 0°, what degree is the intercardinal direction southwest?
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Which of the following best describes how the frequency of an ocean wave changes as its wavelength changes? W) It increases as the wavelength increases X) It increases as the wavelength decreases Y) It decreases as the wavelength decreases Z) It decreases as the wavelength increases
W: W) It increases as the wavelength increases
X: X) It increases as the wavelength decreases
Y: Y) It decreases as the wavelength decreases
Z: Z) It decreases as the wavelength increases
Answer: X) X) It increases as the wavelength decreases
If a sound wave traveling through water has a speed of 1,450 meters per second and a frequency of 2,900 hertz, providing your answer as a decimal to the nearest tenth, what is its wavelength in meters?
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Which of the following characteristics is generally NOT used for classification of ocean waves? W) Disturbing force X) Wavelength Y) Wave height Z) Restoring force
W: W) Disturbing force
X: X) Wavelength
Y: Y) Wave height
Z: Z) Restoring force
Answer: Y) Y) Wave height
Which of the following is a characteristic of a turbidite? W) Graded bedding X) Lived during the Cambrian Y) Found in alkaline bodies of water Z) Often found in caves
W: W) Graded bedding
X: X) Lived during the Cambrian
Y: Y) Found in alkaline bodies of water
Z: Z) Often found in caves
Answer: W) W) Graded bedding
Which of the following states produces the most coal? W) Wyoming X) West Virginia Y) Georgia Z) Montana
W: W) Wyoming
X: X) West Virginia
Y: Y) Georgia
Z: Z) Montana
Answer: W) W) Wyoming
Many factors affect the overall price of gasoline. By name or number, arrange the following four factors based on the extent to which their costs influence the price of gasoline in descending order: 1) Taxes; 2) Distribution; 3) Crude oil; 4) Refining.
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By name or number, identify all of the following four substances that emulsify fat during digestion: 1) Gastrin; 2) Amylase; 3) Motilin; 4) Bile.
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When genetic drift results from the colonization of a new habitat by only a few individuals, what is the name of the resulting loss of genetic variation?
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