MS Sample Set 4, Round 6 from NSB
If you are looking at a specimen with a compound microscope using a 40X objective and a 10X eyepiece, what would be the total magnification? W) 4 times X) 40 times Y) 44 times Z) 400 times
W: W) 4 times
X: X) 40 times
Y: Y) 44 times
Z: Z) 400 times
Answer: Z) Z) 400 times
By name or number, which of the following information can be detected with an electron microscope: 1) topography, 2) morphology, 3) composition, or 4) crystallographic information?
Choices:
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Express in decimal form: 0.99 - (read as: 99 hun-DREDTHS minus three fourths). W) 0.24 X) 0.75 Y) 0.9825 Z) 0.9975
W: W) 0.24
X: X) 0.75
Y: Y) 0.9825
Z: Z) 0.9975
Answer: W) W) 0.24
Simplify: 0.99 - 0.0099 (read as: 99 hun-DREDTHS minus 99 ten thous-ANDTHS).
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In which direction do winds circulate during a hurricane in the Northern Hemisphere?
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Hurricane winds rotate in the opposite direction in the Southern Hemisphere due to: W) The cyclonic force X) The Coriolis effect Y) Ocean temperature differences Z) The presence of less land in the Southern Hemisphere
W: W) The cyclonic force
X: X) The Coriolis effect
Y: Y) Ocean temperature differences
Z: Z) The presence of less land in the Southern Hemisphere
Answer: X) X) The Coriolis effect
Weather systems can be considered either high or low pressure. Which of the following descriptions generally contrasts high and low pressure? W) High pressure indicates fair weather and low pressure indicates stormy weather X) Low pressure indicates fair weather and high pressure indicates stormy weather Y) Either high or low pressure can indicate fair or stormy weather, depending on the circumstances Z) High and low pressure have nothing to do with indicating fair or stormy weather systems
W: W) High pressure indicates fair weather and low pressure indicates stormy weather
X: X) Low pressure indicates fair weather and high pressure indicates stormy weather
Y: Y) Either high or low pressure can indicate fair or stormy weather, depending on the circumstances
Z: Z) High and low pressure have nothing to do with indicating fair or stormy weather systems
Answer: W) W) High pressure indicates fair weather and low pressure indicates stormy weather
Which of the following is NOT likely to change in response to an increase in atmospheric carbon dioxide? W) Barometric pressure X) Storm intensity Y) Mean annual temperature Z) Total precipitation
W: W) Barometric pressure
X: X) Storm intensity
Y: Y) Mean annual temperature
Z: Z) Total precipitation
Answer: W) W) Barometric pressure
Which of the following is NOT true about carbon dioxide? W) It has been present in Earth’s atmosphere for billions of years X) The present amount of carbon dioxide in our atmosphere is completely due to natural causes Y) Increased emissions of carbon dioxide from human industrial activities are causing global climate change Z) On Earth, it is emitted by humans, most other animals and plants
W: W) It has been present in Earth’s atmosphere for billions of years
X: X) The present amount of carbon dioxide in our atmosphere is completely due to natural causes
Y: Y) Increased emissions of carbon dioxide from human industrial activities are causing global climate change
Z: Z) On Earth, it is emitted by humans, most other animals and plants
Answer: X) X) The present amount of carbon dioxide in our atmosphere is completely due to natural causes
What gas makes up the majority of our atmosphere?
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What does pH measure?
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What is the approximate range of the pH scale?
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Spiders such as black widows, brown recluses, mouse spiders, and trapdoor spiders are not actually poisonous, because the term poisonous refers to substances that are harmful if ingested. These spiders, on the other hand, have dangerous bites. Therefore, what term would more accurately describe them?
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Name the organ that spiders and many insect larvae use to build webs, make protective cocoons, and even to help catch the wind in order to fly.
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Fruit flies are common in homes, restaurants, supermarkets and wherever else fruit is allowed to rot and ferment. Given the opportunity, about how many eggs will a fruit fly lay at a time? W) 50 X) 500 Y) 5000 Z) 50,000
W: W) 50
X: X) 500
Y: Y) 5000
Z: Z) 50,000
Answer: X) X) 500
When larvae emerge from fruit fly eggs, where do they tend to feed? W) Near the surface of the fermenting fruit X) Deep within the fermenting fruit Y) In the non-fermenting portion of the fruit next to the overripe portion Z) In the seed
W: W) Near the surface of the fermenting fruit
X: X) Deep within the fermenting fruit
Y: Y) In the non-fermenting portion of the fruit next to the overripe portion
Z: Z) In the seed
Answer: W) W) Near the surface of the fermenting fruit
In which of the following locations are you most likely to find sandstone rock formations? W) Areas with a long history of earthquakes X) Ancient beaches or deserts Y) Swamps formed within the last thousand years Z) Areas with a history of lava deposition
W: W) Areas with a long history of earthquakes
X: X) Ancient beaches or deserts
Y: Y) Swamps formed within the last thousand years
Z: Z) Areas with a history of lava deposition
Answer: X) X) Ancient beaches or deserts
Name the insoluble siliceous nodules that can form within limestone.
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Chromosomes are composed of: W) DNA and proteins X) Genes and nucleotides Y) Proteins and chromatin Z) DNA and RNA
W: W) DNA and proteins
X: X) Genes and nucleotides
Y: Y) Proteins and chromatin
Z: Z) DNA and RNA
Answer: W) W) DNA and proteins
Which of the following mammals has the greatest diploid number of chromosomes? W) Aquatic rat X) Cat Y) Dog Z) Elephant
W: W) Aquatic rat
X: X) Cat
Y: Y) Dog
Z: Z) Elephant
Answer: W) W) Aquatic rat
Most mammals are able to eat both plants and animals. Therefore, most mammals are considered: W) Autotrophs X) Carnivores Y) Herbivores Z) Omnivores
W: W) Autotrophs
X: X) Carnivores
Y: Y) Herbivores
Z: Z) Omnivores
Answer: Z) Z) Omnivores
What type of organism obtains organic carbon for growth by consuming other organisms?
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You’re doing an experiment with soda. You start by weighing the full, closed can of soda. Then you open the can and wait one hour. You weigh the can again and discover that it is lighter. What caused this difference in mass? W) An exothermic reaction X) Escape of dissolved gases Y) Loss of sugar Z) A series of redox reactions in the soda
W: W) An exothermic reaction
X: X) Escape of dissolved gases
Y: Y) Loss of sugar
Z: Z) A series of redox reactions in the soda
Answer: X) X) Escape of dissolved gases
Dry ice is the solid form of what compound?
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What happens to the freezing point of water as salt is added to it?
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The velocity-time graph of a body that starts from rest and moves away from the origin with constant positive acceleration appears as: W) A straight line with positive slope X) A straight, flat line Y) A straight line with negative slope Z) A curved line whose slope is increasing in time
W: W) A straight line with positive slope
X: X) A straight, flat line
Y: Y) A straight line with negative slope
Z: Z) A curved line whose slope is increasing in time
Answer: W) W) A straight line with positive slope
What is the approximate salinity of the ocean in parts per thousand? W) 15 X) 25 Y) 35 Z) 45
W: W) 15
X: X) 25
Y: Y) 35
Z: Z) 45
Answer: Y) Y) 35
The salinity of the ocean is rarely measured directly. What characteristic of the water is measured as a proxy for salinity?
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Two boys and three girls are in a small group. Expressing your answer as a fraction in lowest terms, if a student is chosen at random, what is the probability that a girl is chosen?
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Sam has 2 quarters, 4 dimes, 2 nickels, and 1 penny in his pocket. Expressing your answer as a fraction in lowest terms, if he reaches into his pocket and randomly pulls out a coin, what is the probability that the coin will be a penny or a dime?
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What ion is known as the stable identity of the proton?
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Which of the following units is used to measure the diameter of protons? W) Attometer X) Femtometer Y) Leptometer Z) Ziggiometer
W: W) Attometer
X: X) Femtometer
Y: Y) Leptometer
Z: Z) Ziggiometer
Answer: X) X) Femtometer
When you are sick with a virus, your body builds up a defense system by making antibodies against it. Why, then, do we need to get flu shots every year? W) Antibodies are usually only effective for a few months X) We need antibiotics to combat the flu Y) We could be flu carriers even if we are not sick Z) The flu virus mutates every year
W: W) Antibodies are usually only effective for a few months
X: X) We need antibiotics to combat the flu
Y: Y) We could be flu carriers even if we are not sick
Z: Z) The flu virus mutates every year
Answer: Z) Z) The flu virus mutates every year
There are two main kinds of vaccines. One kind contains an altered virus that produces immunity but does not produce the disease. What is this kind of vaccine called?
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Which of the following correctly describes the number ? W) Integer X) Rational Y) Irrational Z) Whole
W: W) Integer
X: X) Rational
Y: Y) Irrational
Z: Z) Whole
Answer: X) X) Rational
What is the cube root of 343?
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Sound energy passes as a wave through an object when energy causes the molecules in the object to: W) Vacillate X) Rotate Y) Vibrate Z) Translate
W: W) Vacillate
X: X) Rotate
Y: Y) Vibrate
Z: Z) Translate
Answer: Y) Y) Vibrate
A passenger is sitting in a train that accelerates from a full stop. As it moves, there are a number of sounds associated with the acceleration of the train. Compare the frequency of those sounds to the frequency actually heard by the passenger. W) It will be lower X) It will be higher Y) It will vary Z) It will not be different
W: W) It will be lower
X: X) It will be higher
Y: Y) It will vary
Z: Z) It will not be different
Answer: Z) Z) It will not be different
There are two circuits with the same voltage applied and one resistor each. Circuit A’s resistor has twice the resistance of Circuit B’s resistor. How does Circuit B’s current compare to Circuit A’s?
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Assuming that the light bulbs, wires, and batteries are all the same in two different circuits, how would the brightness of two light bulbs in series differ from the brightness of just one light bulb? W) The brightness of the two in series would be dimmer than the single bulb X) The bulbs in series would not light up with the same amount of battery power Y) The bulbs in series would be brighter than the single bulb Z) The bulbs in series and the single bulb would have the same brightness
W: W) The brightness of the two in series would be dimmer than the single bulb
X: X) The bulbs in series would not light up with the same amount of battery power
Y: Y) The bulbs in series would be brighter than the single bulb
Z: Z) The bulbs in series and the single bulb would have the same brightness
Answer: W) W) The brightness of the two in series would be dimmer than the single bulb
If a 4-inch plant grows at the rate of 1/4 inch per day, what will its height be in 27 days? W) 6 4/3 inches X) 7 inches Y) 10 4/3 inches Z) 11 inches
W: W) 6 4/3 inches
X: X) 7 inches
Y: Y) 10 4/3 inches
Z: Z) 11 inches
Answer: Y) Y) 10 4/3 inches
If a 4-inch plant grows at the rate of 1/4 inch per day, in how many days will the plant reach 48 inches?
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Bioluminescence is light originating in an organism that is produced by a chemical reaction. Which of the following statements is NOT true about bioluminescence? W) It is the predominant source of light in the deep ocean X) The luminescent wake of a ship is due to dinoflagellates Y) Most marine bioluminescence is blue in color Z) All firefly species are bioluminescent as adults
W: W) It is the predominant source of light in the deep ocean
X: X) The luminescent wake of a ship is due to dinoflagellates
Y: Y) Most marine bioluminescence is blue in color
Z: Z) All firefly species are bioluminescent as adults
Answer: Z) Z) All firefly species are bioluminescent as adults
In addition to bioluminescent marine and insect life, there are also over 70 known bioluminescent species of this kind of organism, which, like insects, uses chitin as a structural carbohydrate.
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What sub-atomic particles commonly act as the source of electrical current?
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The purpose of a generator in a power plant is to convert one type of energy into another type. What are these two types of energy? W) Electrical to chemical X) Chemical to kinetic Y) Mechanical to electrical Z) Mechanical to kinetic
W: W) Electrical to chemical
X: X) Chemical to kinetic
Y: Y) Mechanical to electrical
Z: Z) Mechanical to kinetic
Answer: Y) Y) Mechanical to electrical
Pikes Peak in the Rockies, Mount Rushmore in the Black Hills, Stone Mountain in Georgia, and Yosemite National Park in the Sierra Nevada are all areas where large quantities of what kind of rock are exposed at the surface?
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Which of the following minerals is present in the highest concentrations in granite? W) Pyroxene X) Hornblende Y) Quartz Z) Plagioclase feldspar
W: W) Pyroxene
X: X) Hornblende
Y: Y) Quartz
Z: Z) Plagioclase feldspar
Answer: Y) Y) Quartz
In the gift shop, semi precious gemstones sell for $12 per pound. If there are 15 stones in a pound, what is the unit cost per gemstone? W) 75 cents X) 80 cents Y) $1.06 Z) $1.25
W: W) 75 cents
X: X) 80 cents
Y: Y) $1.06
Z: Z) $1.25
Answer: X) X) 80 cents
Maria and Jonathon were selling shirts at a flea market for $13 per shirt. However, they had the ability to bargain with purchasers down to a minimum price of $10. At the end of the day, they had sold 2 shirts for $10, 3 shirts for $12, 2 shirts for $12.50, and 5 shirts for $13. To the nearest cent, what was their mean price?
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