Round #2 Flashcards
1) GENERAL SCIENCE Multiple Choice Coal formed from the remains of plants that died more
than 300 million years ago. In what period did these plants live?
W) Precambrian
X) Cenozoic
Y) Carboniferous [kahr-buh-NIF-er-uhs]
Z) Cretaceous [kri-TAY-shuhs]
ANSWER: Y) CARBONIFEROUS
1) GENERAL SCIENCE Multiple Choice What is the difference between mitosis [my-TOH-sis]
and meiosis [my-OH-sis]?
W) Mitosis refers to cell division while meiosis refers to cell repair
X) Mitosis produces haploid cells while meiosis produces diploid cells
Y) Meiosis has fewer stages than mitosis
Z) Meiosis typically produces haploid gametes while mitosis does not
ANSWER: Z) MEIOSIS TYPICALLY PRODUCES HAPLOID GAMETES WHILE MITOSIS
DOES NOT
2) ENERGY Short Answer Our Sun is a power source that generates energy through nuclear
fusion. In this process, lighter hydrogen nuclei combine to form what heavier element?
ANSWER: HELIUM
2) ENERGY Short Answer Given a temperature of 95° Fahrenheit, the energy efficiency ratio
(EER) is defined as the cooling capacity in Btu per hour over watts. Calculate the EER of an air
conditioner with a cooling capacity of 10,000 Btu per hour and a watts unit consumption of 1000
watts.
ANSWER: 10
3) PHYSICAL SCIENCE Multiple Choice A student hears the siren of a steadily approaching
police car. Which of the following is true?
W) The sound waves decrease in speed as the car nears
X) The sound waves increase in speed as the car nears
Y) The perceived frequency of the siren is greater than the frequency heard when the police car
is at rest
Z) The perceived frequency of the siren is less than the frequency heard when the police car is
at rest
ANSWER: Y) THE PERCEIVED FREQUENCY OF THE SIREN IS GREATER THAN THE
FREQUENCY HEARD WHEN THE POLICE CAR IS AT REST
3) PHYSICAL SCIENCE Multiple Choice The dynamic equilibrium [ee-kwuh-LIB-ree-uhm] of a
reaction is best characterized by which of the following?
W) Equal amounts of products, enzymes, and reactants
X) Complete use of all enzymes
Y) The forward rate of reaction has reached the maximum rate
Z) The forward and reverse rates of reaction are equal
ANSWER: Z) THE FORWARD AND REVERSE RATES OF REACTION ARE EQUAL
4) LIFE SCIENCE Multiple Choice Which of the following cellular organelles does NOT contain
DNA?
W) Chloroplasts
X) Mitochondria [my-tuh-KON-dree-uh]
Y) Nuclei
Z) Ribosomes [RY-buh-sohms]
ANSWER: Z) RIBOSOMES
4) LIFE SCIENCE Multiple Choice Why are so-called nectar robbers a problem for plants?
W) They cause inappropriate cross-pollination
X) They do not help pollinate plants
Y) They steal the plant’s pollen
Z) They cause self-pollination
ANSWER: X) THEY DO NOT HELP POLLINATE PLANTS
5) MATH Short Answer Once it breaks through the ground, a type of flower grows ¾ of an inch a
day. How many days will it take to reach a height of 6 feet?
ANSWER: 96
5) MATH Short Answer Identify all of the following five block letters that have rotational
symmetry: M, T, S, O, X.
ANSWER: S, O, AND X
6) EARTH AND SPACE Short Answer What primary weather factor is driven by the pressure
gradient caused by uneven heating of Earth’s surface?
ANSWER: WIND
6) EARTH AND SPACE Multiple Choice Which of the following states would have the least
amount of mass wasting based on the state’s topography?
W) Virginia
X) Colorado
Y) South Dakota
Z) Oregon
ANSWER: Y) SOUTH DAKOTA
7) GENERAL SCIENCE Multiple Choice Your body senses balance using semicircular canals,
which are located in which of the following?
W) Hippocampus
X) Ears
Y) Thyroid
Z) Optic nerve
ANSWER: X) EARS
7) GENERAL SCIENCE Short Answer Which members of our solar system left the majority of
craters, scars, and apparent pockmarks on the surface of Earth’s moon as a result of multiple
impacts?
ANSWER: METEOROIDS (ACCEPT: ASTEROIDS, METEORITES; DO NOT ACCEPT:
METEORS)
8) PHYSICAL SCIENCE Multiple Choice Pressure is defined as:
W) Force divided by unit area
X) Force divided by mass of air above the object
Y) Force divided by unit volume
Z) Power divided by unit force
ANSWER: W) FORCE DIVIDED BY UNIT AREA
8) PHYSICAL SCIENCE Multiple Choice Which of the following is true about sound perception?
W) The intensity of sound is independent of loudness
X) The frequency of sound is logarithmically related to the intensity
Y) The loudness of a sound is logarithmically related to the intensity
Z) Sounds measured in decibels are independent of the threshold of hearing
ANSWER: Y) THE LOUDNESS OF A SOUND IS LOGARITHMICALLY RELATED TO THE
INTENSITY
9) LIFE SCIENCE Multiple Choice In humans, red-green color blindness is caused by a
recessive sex-linked trait on the X chromosome. If a man and a woman produce a color blind
son, assuming no spontaneous mutation, which of the following must be true?
W) The father is color blind
X) Both parents carry the allele for color blindness
Y) The mother carries the allele for color blindness
Z) Neither parent carries the allele for color blindness
ANSWER: Y) THE MOTHER CARRIES THE ALLELE FOR COLOR BLINDNESS
9) LIFE SCIENCE Short Answer Expressed as a fraction, what is the probability that the
daughter of a color blind father and carrier mother will also be color blind?
ANSWER: 1/2
10) MATH Multiple Choice The slope of a line with equation y = px + b is greater than the slope
of the line with equation y = qx + b. Which of the following must be true about the relationship
between p and q?
W) p > q
X) p < q
Y) p = q
Z) p ≤ q
ANSWER: W) p > q
10) MATH Short Answer What fraction has 0.757575… as its infinite repeating decimal?
ANSWER: 25/33
11) EARTH AND SPACE Multiple Choice Which of the following is NOT a type of sediment load
carried by a river?
W) Dissolved
X) Drifting
Y) Suspended
Z) Bed
ANSWER: X) DRIFTING
11) EARTH AND SPACE Short Answer What is the name for the characteristic assigned to
minerals that do NOT cleave in an organized fashion?
ANSWER: FRACTURE
12) GENERAL SCIENCE Multiple Choice Wolbachia [wohl-BAK-eea] bacteria are maternally
transmitted in insect hosts. Wolbachia tend to localize to what region of their insect host?
W) Digestive tract
X) Head
Y) Ovaries
Z) Lungs
ANSWER: Y) OVARIES
12) GENERAL SCIENCE Multiple Choice Wolbachia [wohl-BAK-eea] bacteria are maternally
transmitted in insect hosts. Which of the following is NOT a method by which Wolbachia
manipulate the reproductive processes of their hosts in order to promote their proliferation
through a host population?
W) Killing male offspring
X) Inducing parthenogenesis [par-thuh-noh-JEN-uh-sis]
Y) Causing infected males to develop as females
Z) Increasing the proportion of haploid offspring
ANSWER: Z) INCREASINGTHE PROPORTION OF HAPLOID OFFSPRING
13) ENERGY Multiple Choice When exposed to the atmosphere, iron begins to rust. This
surface process represents what type of reaction?
W) Oxidation
X) Electrolysis
Y) Gas evolution
Z) Reduction
ANSWER: W) OXIDATION
13) ENERGY Short Answer Traditional incandescent light bulbs are being replaced by more
energy efficient devices such as LEDs. What is the full term for the acronym LED?
ANSWER: LIGHT-EMITTING DIODE
14) PHYSICAL SCIENCE Multiple Choice The kinetic energy of an object is which of the
following?
W) Directly proportional to the square of the velocity
X) Independent of the speed at which it is moving
Y) Always a vector quantity
Z) Independent of the mass of the object
ANSWER: W) DIRECTLY PROPORTIONAL TO THE SQUARE OF THE VELOCITY
14) PHYSICAL SCIENCE Multiple Choice Which of the following is NOT true of metals?
W) They exist as extended planes of atoms
X) They are malleable and ductile
Y) They conduct electricity but do not conduct heat
Z) They can be combined to form alloys
ANSWER: Y) THEY CONDUCT ELECTRICITY BUT DO NOT CONDUCT HEAT
15) LIFE SCIENCE Multiple Choice The oxygen released into the air as a product of
photosynthesis comes from what?
W) Carbon dioxide
X) Water
Y) Glucose
Z) Rubisco
ANSWER: X) WATER
15) LIFE SCIENCE Short Answer Arrange the following four groupings of organisms from
narrowest to broadest level of categorization: 1) genus, 2) phylum [FY-luhm], 3) domain, 4)
class.
ANSWER: 1, 4, 2, 3 (ACCEPT: GENUS, CLASS, PHYLUM, DOMAIN)
16) MATH Multiple Choice For a system of two linear equations, which of the following is true if
their graphs intersect and have the same slope?
W) There is a unique solution
X) There are exactly two solutions
Y) There are infinitely many solutions
Z) There is no solution
ANSWER: Y) THERE ARE INFINITELY MANY SOLUTIONS
16) MATH Short Answer Solve the following equation for x over the real numbers:
(x – 5)(x + 5) = −16.
ANSWER: 3,- 3
17) EARTH AND SPACE Short Answer What is the meteorological term for the level of water
vapor in a given air parcel?
ANSWER: HUMIDITY (DO NOT ACCEPT: RELATIVE HUMIDITY)
17) EARTH AND SPACE Multiple Choice Which of the following is the crystal habit of halite?
W) Cubic
X) Hexagonal prism
Y) Rhombohedra [rom-buh-HEE-druh]
Z) Dodecahedra [doh-dek-uh-HEE-druh]
ANSWER: W) CUBIC
18) LIFE SCIENCE Multiple Choice An adaptation is any kind of modification in bodily structure
or behavior that increases an organism’s chance of survival in their environment. Which of the
following is NOT an example of an adaptation in an organism to its current environment?
W) The large eyes of an owl for improved night vision
X) The spines of a cactus for improved water retention
Y) The appendix of a human for improved protein digestion
Z) The jaws of a Venus Flytrap for improved ability to capture insects
ANSWER: Y) THE APPENDIX OF A HUMAN FOR IMPROVED PROTEIN DIGESTION
18) LIFE SCIENCE Multiple Choice Exopolymeric substances, or EPS, are exuded by
microorganisms during times of environmental stress. Which of the following is NOT a function
of EPS?
W) Protection against starvation
X) Protection against mechanical damage
Y) Protection against desiccation
Z) Protection against viral attack
ANSWER: W) PROTECTION AGAINST STARVATION
19) GENERAL SCIENCE Multiple Choice Tapeworms can infect the human digestive tract,
where they grow and persist for long periods of time, causing relatively moderate symptoms
such as diarrhea and anemia. Therefore, tapeworms are best described as which of the
following?
W) Commensalists
X) Parasites
Y) Mutualists
Z) Parasitoids [PAR-uh-si-toids]
ANSWER: X) PARASITES
19) GENERAL SCIENCE Short Answer What two products are most commonly formed when a
strong acid and a strong base react?
ANSWER: WATER AND A SALT
20) ENERGY Multiple Choice Approximately which of the following percentages of U.S. electric
power is generated by nuclear reactors?
W) 2%
X) 19%
Y) 37%
Z) 56%
ANSWER: X) 19%
20) ENERGY Short Answer What is primarily used in Brazil as a source of sugar for the
production of ethanol?
ANSWER: SUGAR CANE
21) PHYSICAL SCIENCE Multiple Choice Which of the following is NOT an example of an
electromagnetic wave?
W) Visible light
X) Sound waves
Y) Microwaves
Z) Gamma rays
ANSWER: X) SOUND WAVES
21) PHYSICAL SCIENCE Short Answer Rubbing alcohol has a density of 0.778 grams per
milliliter. Providing your answer to two significant figures, what is the mass in grams of a sample
that has a volume of 81.0 milliliters?
ANSWER: 63
22) LIFE SCIENCE Multiple Choice Which of the following is NOT made primarily out of
glucose?
W) Maltose
X) Silk
Y) Starch
Z) Cotton
ANSWER: X) SILK
22) LIFE SCIENCE Short Answer A simplified food chain for the Aleutian Islands consists of
killer whales, sea otters, sea urchins, and kelp. Reducing the number of sea otters is likely to
have what impact on the population of kelp?
ANSWER: REDUCTION
23) MATH Multiple Choice Divide 16 into two parts, such that twice the smaller number is 4 less
than the larger number. What are the two numbers?
W) 4, 12
X) 6, 10
Y) 7, 9
Z) 8, 8
ANSWER: W) 4, 12
23) MATH Short Answer What are the prime numbers between 70 and 82?
ANSWER: 71, 73, 79
24) EARTH AND SPACE Multiple Choice Which of the following intrusive rock deposits is
largest in size?
W) Dike
X) Batholith [BATH-uh-lith]
Y) Laccolith [LAK-uh-lith]
Z) Sill
ANSWER: X) BATHOLITH
24) EARTH AND SPACE Short Answer The presence of snow on sea ice has what effect on
freeboard, the amount of snow and ice protruding above the surface?
ANSWER: IT LOWERS FREEBOARD
25) GENERAL SCIENCE Multiple Choice Which of the following is an example of abrasion
weathering?
W) Loose rocks collide with each other, wearing each other down
X) Oxygen combines with iron to form iron oxide
Y) Water enters the cracks of rocks and freezes, causing the cracks to expand
Z) Hydrogen ions in water replace elements such as potassium or calcium in rocks
ANSWER: W) LOOSE ROCKS COLLIDE WITH EACH OTHER, WEARING EACH OTHER
DOWN
25) GENERAL SCIENCE Short Answer In 1912, the German scientist Alfred Wegener proposed
the theory of continental drift, the theory that the continents had moved. However, he wasn’t
completely sure how or why. It wasn’t until the 1960s that enough evidence had been found to
propose a theory of how continental drift occurred, the theory we still use today. What is the
name for this theory?
ANSWER: PLATE TECTONICS
