Round #3 Flashcards
1) MATH Short Answer What is the x-intercept of the graph with equation y = 7?
ANSWER: THERE IS NONE
1) MATH Multiple Choice If a line passes through point (1, 6) and has a slope of 4, which of the
following is the equation of the line?
W) x = 2y + 4
X) x = 4y + 2
Y) y = 4x + 2
Z) y = 2x + 4
ANSWER: Y) y = 4x + 2
2) PHYSICAL SCIENCE Multiple Choice Which of the following does NOT correctly describe
force in the context of a moving object?
W) It is a vector
X) It has a magnitude
Y) It is dependent on mass
Z) It is independent of acceleration
ANSWER: Z) IT IS INDEPENDENT OF ACCELERATION
2) PHYSICAL SCIENCE Short Answer Identify the following three elements as a metal,
metalloid and nonmetal, respectively: silicon, sodium, neon.
ANSWER: METAL = SODIUM; METALLOID = SILICON; NONMETAL = NEON
3) GENERAL SCIENCE Multiple Choice All chordates [KAWR-dayts] possess which of the
following?
W) A notochord
X) A spinal cord
Y) Lungs
Z) A four-chambered heart
ANSWER: W) A NOTOCHORD
3) GENERAL SCIENCE Short Answer Identify all of the following four parties who know which
subjects are in which treatment groups in a double blind study involving human subjects: 1) the
subjects, 2) the investigators who carry out the study, 3) the investigators who plan the study, 4)
the statisticians who analyze the data.
ANSWER: 4 (ACCEPT: THE STATISTICIANS WHO ANALYZE THE DATA)
4) EARTH AND SPACE Multiple Choice Most gemstones belong to what class of minerals?
W) Phosphates
X) Oxides
Y) Carbonates
Z) Silicates
ANSWER: Z) SILICATES
4) EARTH AND SPACE Multiple Choice A supraglacial lake would be located at which of the
following locations?
W) Underneath a glacier
X) On top of a glacier
Y) In the moraine of a retreating glacier
Z) At the glacier terminus
ANSWER: X) ON TOP OF A GLACIER
5) LIFE SCIENCE Short Answer What is the term for a heritable change in the character of a
gene or a change in the sequence of base pairs in a DNA molecule?
ANSWER: MUTATION
5) LIFE SCIENCE Multiple Choice Which of the following will most likely reduce genetic
variation in a population?
W) Disruptive selection
X) Directional selection
Y) Stabilizing selection
Z) Genetic drift
ANSWER: Y) STABILIZING SELECTION
6) ENERGY Multiple Choice A proton exchange membrane fuel cell exchanges which of the
following ions?
W) OH
X) Cl
Y) H+
Z) Al
ANSWER: Y) H+
6) ENERGY Short Answer What two states together account for approximately one fifth of the
nation’s nuclear power generation?
ANSWER: ILLINOIS AND PENNSYLVANIA
7) MATH Short Answer Providing your answer as a mixed number, what is 1 3
4
+ 2 7
8
?
ANSWER: 4 5/8
7) MATH Short Answer For what value of k does kx + 7y = 10 have a slope of 3?
ANSWER: -21
8) PHYSICAL SCIENCE Multiple Choice Which of the following elements would be expected to
have the most polar bond when bonded with oxygen?
W) Sulfur
X) Fluorine
Y) Hydrogen
Z) Nitrogen
ANSWER: Y) HYDROGEN
8) PHYSICAL SCIENCE Short Answer Identify all of the following four choices that are
electrically neutral: 1) gamma rays, 2) positrons, 3) alpha particles, 4) beta particles.
ANSWER: 1 (ACCEPT: GAMMA RAYS)
9) GENERAL SCIENCE Multiple Choice Sharks and salmon have evolved different adaptations.
Which of the following statements is true?
W) Sharks lay eggs while salmon give birth to live young
X) Sharks have cartilaginous [kahr-tl-AJ-uh-nuhs] skeletons while salmon have bony
skeletons
Y) Salmon possess gills while sharks do not
Z) Sharks possess opercula while salmon do not
ANSWER: X) SHARKS HAVE CARTILAGINOUS SKELETONS WHILE SALMON HAVE BONY
SKELETONS
9) GENERAL SCIENCE Short Answer What inner planet of our solar system is known for its
clouds of sulfuric acid and sulfur dioxide?
ANSWER: VENUS
10) EARTH AND SPACE Multiple Choice Which of the following rocks has both high porosity
and high permeability?
W) Claystone
X) Sandstone
Y) Granite
Z) Marble
ANSWER: X) SANDSTONE
10) EARTH AND SPACE Short Answer As a result of pressure, the melting point of glacial ice is
known to decrease 0.7° Celsius per kilometer of depth. Providing your answer in kilometers to
the nearest tenth, at what depth will a glacier begin to melt if it has a constant temperature of -2°
Celsius?
ANSWER: 2.9
11) LIFE SCIENCE Multiple Choice Angiosperms [AN-jee-uh-spurms] are plants that do what?
W) Reproduce exclusively by spores
X) Have flowers and fruits
Y) Parasitize other plants
Z) Produce seeds, but not flowers
ANSWER: X) HAVE FLOWERS AND FRUITS
11) LIFE SCIENCE Short Answer A student electrophoreses a sample of restriction-digested
DNA. Upon staining, four distinct bands appear on the gel: A – 1500 base pairs, B – 2000 base
pairs, C – 1000 base pairs, and D – 3000 base pairs. Based on the size of the restriction
fragments, in what order do the bands appear on the gel, starting from the band closest to the
well?
ANSWER: D, B, A, C
12) ENERGY Short Answer If 6 amperes of current flow through a 5 ohm resistor, what is the
voltage across the resistor?
ANSWER: 30
12) ENERGY Multiple Choice Approximately how many days could a single person be fed from
the corn needed to produce enough 100% ethanol to fuel a single SUV?
W) 34
X) 234
Y) 365
Z) 1089
ANSWER: Y) 365
13) MATH Short Answer In the following proportion, solve for x over the real numbers:
(𝑥−1)
8 = 6
(𝑥+1)
.
ANSWER: ±7
13) MATH Short Answer Dividing a certain number by 2 yields the same result as subtracting 15
from 3 times the number. Find the number.
ANSWER: 6
14) PHYSICAL SCIENCE Multiple Choice When a substance contains more of a dissolved
compound than can be dissolved by the solvent under standard conditions, it is referred to as
which of the following?
W) Saturated
X) Dissaturated
Y) Over saturated
Z) Super saturated
ANSWER: Z) SUPER SATURATED
14) PHYSICAL SCIENCE Short Answer In the balanced combustion reaction of one mole of
propane with excess oxygen to form water and carbon dioxide, identify the number of moles,
respectively, of carbon dioxide and water formed.
ANSWER: CARBON DIOXIDE = 3; WATER = 4
15) GENERAL SCIENCE Multiple Choice Lightning can NOT form between which of the
following media?
W) Cloud and air
X) Air and ground
Y) Cloud and cloud
Z) Ground and cloud
ANSWER: X) AIR AND GROUND
15) GENERAL SCIENCE Short Answer Most organisms need nitrogen to create important
compounds like amino acids and proteins, but cannot directly access nitrogen from the
atmosphere. What is the name of the process that makes atmospheric nitrogen accessible to
individuals in the food web?
ANSWER: NITROGEN FIXATION
16) EARTH AND SPACE Multiple Choice Which of the following types of volcano usually covers
the most acreage on the surface of the Earth?
W) Lava dome
X) Cinder cone
Y) Stratovolcano
Z) Shield volcano
ANSWER: Z) SHIELD VOLCANO
16) EARTH AND SPACE Multiple Choice Black smokers are most likely to be found in
association with what type of undersea geological site?
W) Subduction zone
X) Slip-strike fault
Y) Methane seep
Z) Spreading center
ANSWER: Z) SPREADING CENTER
17) LIFE SCIENCE Short Answer What is the nitrogenous [ny-TROJ-uh-nuhs] base found in
RNA that is NOT present in DNA?
ANSWER: URACIL
17) LIFE SCIENCE Short Answer What is the structural polysaccharide [pol-ee-SAK-uh-ryd]
that forms the exoskeleton of arthropods [AHR-thruh-pods] and is the building material in the
cell walls of some fungi?
ANSWER: CHITIN
18) GENERAL SCIENCE Multiple Choice Many fish possess a swim bladder filled with air for
what purpose?
W) Buoyancy
X) Circulation
Y) Digestion
Z) Respiration
ANSWER: W) BUOYANCY
18) GENERAL SCIENCE Multiple Choice Which of the following pairs of countries is NOT
located on the same tectonic plate?
W) Great Britain and Russia
X) China and India
Y) Greenland and Mexico
Z) Malaysia and Norway
ANSWER: X) CHINA AND INDIA
19) MATH Short Answer What is the arithmetic mean of the numbers: -20, -12, 7, 9?
ANSWER: - 4
19) MATH Short Answer The measures of the angles of a triangle are in the ratio of 2:3:5. What
is the measure in degrees of the triangle’s largest angle?
ANSWER: 90°
20) PHYSICAL SCIENCE Multiple Choice A student is standing in an elevator that is moving.
Taking upward to be positive and downward to be negative, which of the following could NOT be
true?
W) The student has a velocity equal to zero and a positive acceleration vector
X) The student has an acceleration equal to zero and a positive velocity vector
Y) The student has a positive acceleration vector and a negative velocity vector
Z) The student has a negative acceleration vector and is slowing down
ANSWER: W) THE STUDENT HAS A VELOCITY EQUAL TO ZERO AND A POSITIVE
ACCELERATION VECTOR
20) PHYSICAL SCIENCE Short Answer Electromagnetic radiation that has a wavelength of 10-4
meters is in which region of the spectrum?
ANSWER: INFRARED (ACCEPT: INFRARED REGION, INFRARED BAND, IR, IR REGION,
AND IR BAND)
21) GENERAL SCIENCE Multiple Choice Arthropods [AHR-thruh-pods] evolved exoskeletons
to better adapt to their environments. However, exoskeletons also present certain challenges.
Which of the following statements does NOT describe a disadvantage associated with
exoskeletons?
W) Increased risk of desiccation
X) Restricted sensory input
Y) Restricted movement
Z) Limited body size
ANSWER: W) INCREASED RISK OF DESICCATION
21) GENERAL SCIENCE Short Answer Many scientists believe viruses represent the boundary
between the living and nonliving. They exhibit both similarities and differences when compared
to living organisms. Identify all of the following four areas in which viruses are different from
living organisms: 1) presence of genetic material, 2) reproduction, 3) evolution by natural
selection, 4) metabolism.
ANSWER: 2, 4 (ACCEPT: REPRODUCTION, METABOLISM)
22) EARTH AND SPACE Short Answer Based on Iceland’s location, what type of lava is most
commonly seen erupting from Iceland’s volcanic vents?
ANSWER: BASALT
22) EARTH AND SPACE Short Answer Place the following four geological time divisions in the
correct order, from longest to shortest: 1) era, 2) epoch, 3) period, 4) eon.
ANSWER: 4, 1, 3, 2 (ACCEPT: EON, ERA, PERIOD, EPOCH)
23) LIFE SCIENCE Short Answer Shingles is a localized skin rash that is often very painful and
is caused by reactivation of the virus that previously caused what common childhood disease in
the host?
ANSWER: CHICKENPOX
23) LIFE SCIENCE Short Answer There are three primary locomotor structures that aid in
movement of single-celled organisms. One type of structure is flagella. Name one of the two
other types.
ANSWER: CILIA (ACCEPT: CILIUM) OR PSEUDOPODIA (ACCEPT: PSEUDOPOD)
24) ENERGY Short Answer Nuclear reactors rely on a nuclear chain reaction to cleave atoms
and release energy at a controlled rate. What subatomic particle drives this chain reaction?
ANSWER: NEUTRON
24) ENERGY Short Answer What is attributed with causing the universe to expand at an
accelerating rate?
ANSWER: DARK ENERGY (DO NOT ACCEPT: DARK MATTER)
25) LIFE SCIENCE Short Answer Several species of birds feed on ectoparasites [ek-toh-PARuh-syts] that they clean off of large mammals. Specifically, this behavior is what kind of
interaction?
ANSWER: MUTUALISM (ACCEPT: FACULTATIVE MUTUALISM; DO NOT ACCEPT:
SYMBIOSIS)
25) LIFE SCIENCE Multiple Choice Which of the following is an example of chemosynthesis?
W) A Venus flytrap breaking down the phosphates in a fly
X) A plant obtaining fixated nitrogen from bacteria rich soil
Y) Prokaryotes [proh-KAR-ee-ohts] obtaining energy from sulfur compounds from the sea
vents on the ocean floor
Z) A human being breaking down vitamins and minerals for metabolic digestion
ANSWER: Y) PROKARYOTES OBTAINING ENERGY FROM SULFUR COMPOUNDS FROM
THE SEA VENTS ON THE OCEAN FLOOR
