question stringlengths 68 502 | answer stringclasses 4
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Question: The remainder is transferred by contraction of what before the ventricles begin to contract?
Options:
A. the large intestine
B. the arteries
C. the atria
D. the stomach | C |
Question: Chromatin condenses into chromosomes during prophase, the first and longest phase of what process?
Options:
A. reproduction
B. apoptosis
C. mitosis
D. meiosis | C |
Question: What do plants lose the most of through the stomata?
Options:
A. water
B. energy
C. chlorophyll
D. heat | A |
Question: Unburned hydrocarbons can more easily be converted to carbon dioxide and water in the presence of a what?
Options:
A. temperature
B. catalyst
C. methane
D. Ethanol | B |
Question: What do plasmodesmata connect to in the plant cell?
Options:
A. pores
B. cytoplasms
C. nuclei
D. sporozoans | B |
Question: What are compounds composed of only two elements called?
Options:
A. kinetic compounds
B. binary compounds
C. symbiotic compounds
D. digital compounds | B |
Question: What type of gases trap heat in the atmosphere, causing earth to have a moderate temperature?
Options:
A. sulfuric gases
B. greenhouse gases
C. carbon monoxides
D. ozone gases | B |
Question: What system is the brain the control center of?
Options:
A. nervous
B. circulatory
C. fibrous
D. adrenal | A |
Question: Air pollution can cause disease of what system by affecting the health of your lungs?
Options:
A. respiratory
B. cardiac
C. excretory
D. digestive | A |
Question: Why does the body react to a loss of chloride ions?
Options:
A. decreased tricarbonate reabsorption
B. increased bicarbonate reabsorption
C. increased tricarbonate reabsorption
D. decreased bicarbonate reabsorption | B |
Question: The negatively charged electrons are attracted to the positively charged what?
Options:
A. ion
B. nucleus
C. atom
D. axon | B |
Question: Most of the gray matter is on the surface of the brain, surrounding what other type of matter?
Options:
A. dark matter
B. white
C. corrugated
D. blue | B |
Question: Cooling or evaporation of what from the sea surface makes surface water dense?
Options:
A. warm water
B. fresh water
C. dirty water
D. salt water | B |
Question: What is the term for reproductive cells, such as sperm and egg?
Options:
A. gametes
B. spores
C. nucleus
D. parasites | A |
Question: What material is regularly used in human hip and knee implants?
Options:
A. wood
B. metal
C. glass
D. coal | B |
Question: What are the most dramatic, sudden, and dangerous types of mass wasting?
Options:
A. landslides
B. earthquakes
C. monsoons
D. volcanoes | A |
Question: What current-carrying long coil of wire acts as a magnet?
Options:
A. igniter
B. converter
C. antenna
D. solenoid | D |
Question: In combination or synthesis reactions, two chemical species combine to produce a what?
Options:
A. mixture
B. new compound
C. fusion
D. alloy | B |
Question: The core of a star collapses during what event, forming a neutron star?
Options:
A. blast
B. spark
C. supernova
D. gravitational | C |
Question: What is the term used for a large body of air of the same temperature and moisture conditions?
Options:
A. air mass
B. air group
C. sky mass
D. air pool | A |
Question: The loss of oxygen to the heart muscle causes that part of the tissue to what?
Options:
A. beat erratically
B. thrive
C. beat harder
D. die | D |
Question: What system transports many substances to and from cells throughout the body?
Options:
A. nutritional
B. cardiovascular
C. physiological
D. circulatory | B |
Question: What consists of two or more elements and forms as a result of a chemical reaction?
Options:
A. protein
B. molecule
C. compound
D. particle | C |
Question: What is occasional chest pain known as?
Options:
A. angina pectoris
B. cardiac arrest
C. arrhythmia
D. heart murmur | A |
Question: In the cardiovascular system, where is the ultimate destination of the oxygen-poor blood?
Options:
A. lung
B. brain
C. liver
D. heart | D |
Question: What is the study of the energy transformations that occur in a collection of matter?
Options:
A. fluctuations
B. geophysics
C. kinetics
D. thermodynamics | D |
Question: Love canal was an infamous example of what type of pollution?
Options:
A. Land Pollution
B. Visual Pollution
C. thermal pollution
D. industrial waste dumping | D |
Question: What is a funnel-shaped cloud of whirling high winds known as?
Options:
A. hurricane
B. tsunami
C. tornado
D. volcano | C |
Question: Why do birds need a light-weight body?
Options:
A. to stay aloft
B. for cooling
C. water flotation
D. food shortages | A |
Question: Asthma, pneumonia, and emphysema are diseases of what system?
Options:
A. reproductive
B. respiratory
C. pulmonary
D. digestive | B |
Question: The “knee-jerk" motion that people involuntarily perform after being struck in the knee in a certain way is an example of what kind of behavior?
Options:
A. sensor
B. spasm
C. reflex
D. reaction | C |
Question: What are tiny, hair like projections?
Options:
A. cilia
B. actin
C. spinicles
D. fuzz | A |
Question: How long does it take for the earth to make a complete rotation of its axis?
Options:
A. one year
B. one month
C. 24.25 hours
D. 24 hours | D |
Question: Glaciers have been melting since what period?
Options:
A. stone age
B. pleistocene ice age
C. industrial age
D. bronze age | B |
Question: The transmission electron micrograph shows the cell walls where two cells do what?
Options:
A. disappear
B. reproduce
C. come together
D. split apart | C |
Question: What form does water take on the planet mars?
Options:
A. liquid
B. gas
C. ice
D. plasma | C |
Question: The simplest system is that of contractile vacuoles present in what?
Options:
A. microorganisms
B. macroorganisms
C. crystals
D. parasites | A |
Question: Water's very polar compound causes most solutes to do what?
Options:
A. dissolve
B. gel
C. combine
D. repel | A |
Question: Which plant group has vascular tissue, seeds, and flowers?
Options:
A. microbes
B. spores
C. angiosperms
D. fungi | C |
Question: The point in front of a mirror where the reflected rays intersect is known as what?
Options:
A. focal point
B. reflective point
C. boundary point
D. periodic point | A |
Question: Any unused energy in food, whether it comes from carbohydrates, proteins, or lipids, is stored in the body where?
Options:
A. kidneys
B. bones
C. spleen
D. fat | D |
Question: What helps determine the concentration of a species in a solution?
Options:
A. quantitative analysis
B. technical analysis
C. fundamental analysis
D. qualitative analysis | A |
Question: In order to survive and maintain what state, an organism must quickly adapt to changing environmental conditions?
Options:
A. acclimatization
B. homeostasis
C. ketosis
D. regulation | B |
Question: What crust is thinner and denser than continental crust?
Options:
A. land
B. oceanic
C. coastal
D. asteroid | B |
Question: What are the antibodies an animal produces after exposure to a microbial antigen?
Options:
A. monoclonal
B. isolated
C. polyclonal
D. chimeric | C |
Question: How does heat travel from the sun to the earth?
Options:
A. secondary radiation from the sun
B. through light waves
C. thermal radiation from the sun
D. through sound waves | C |
Question: What were the first life forms found on earth similar to?
Options:
A. ferns
B. bacteria
C. viruses
D. mold | B |
Question: Steel, bronze, and brass are examples of what?
Options:
A. chemicals
B. oxides
C. alloys
D. compounds | C |
Question: A pacemaker uses electrical shocks to stimulate the what to beat properly?
Options:
A. brain
B. liver
C. heart
D. pancreas | C |
Question: What is the cloud of brown dust-like power that escapes when a puffball fungus is touched?
Options:
A. ions
B. spores
C. seeds
D. pollon | B |
Question: What are the cone-like structures that contain sporangia called?
Options:
A. strobili
B. medulla
C. contrail
D. gametes | A |
Question: What are considered to be the smallest particles of matter?
Options:
A. ions
B. cells
C. molecules
D. atoms | D |
Question: The mechanics of dynein-based bending involve a process that resembles what?
Options:
A. standing
B. jumping
C. running
D. walking | D |
Question: What type of creature is a scallop?
Options:
A. mollusk
B. insect
C. vertabrate
D. algae | A |
Question: The risk of what is raised by overexposure to the sun?
Options:
A. flux cancer
B. brain cancer
C. skin cancer
D. particle cancer | C |
Question: Which artery enters the cranium through the carotid canal in the temporal bone?
Options:
A. external carotid
B. internal carotid artery
C. venal artery
D. atrial artery | B |
Question: How are aquatic biomes often classified?
Options:
A. amount of light
B. amount of salt
C. amount of life
D. depth | B |
Question: What is the most abundant type of biological entity on the earth?
Options:
A. viruses
B. bacteria
C. insects
D. reptiles | A |
Question: What is the most diverse and abundant group of organisms on earth, numbering in the millions of trillions?
Options:
A. pathogens
B. viruses
C. pests
D. bacteria | D |
Question: What kind of hormones are secreted by organs classified as gonads?
Options:
A. sex hormones
B. anterior hormones
C. cortisol hormones
D. growth hormones | A |
Question: An oxy-acetylene torch is an effective way to cut what?
Options:
A. plastic
B. wood
C. metal
D. coal | C |
Question: What are the infoldings of the inner membrane called?
Options:
A. brickle
B. lineage
C. ceranae
D. cristae | D |
Question: A channel protein is an example of what type of protein?
Options:
A. choice proteins
B. hemoglobin protein
C. component proteins
D. transport proteins | D |
Question: Eight of the hottest years on record have occurred since what year?
Options:
A. 1991
B. 2002
C. 1998
D. 1997 | C |
Question: Average acceleration is the rate of change of what?
Options:
A. direction
B. speed
C. displacement
D. velocity | D |
Question: What is studied to understand gene expression patterns in cells?
Options:
A. mutations
B. protein
C. dna
D. rna | D |
Question: Ribosomes are produced in the nucleolus, and then transported to the what?
Options:
A. cytoplasm
B. nucleus
C. cerebellum
D. cytoskeleton | A |
Question: Ecosystem dynamics include more than the flow of energy and recycling of matter. ecosystems are also dynamic because they?
Options:
A. stay the same
B. never move
C. recreate exactly alike
D. change through time | D |
Question: Muscle contraction requires repeated cycles of binding and what?
Options:
A. push
B. twisting
C. release
D. lunging | C |
Question: An important chemical compound, which supplies living things with the energy they need to survive, is composed of carbon, oxygen and atoms of what other element?
Options:
A. magnesium
B. hydrogen
C. nitrogen
D. calcium | B |
Question: What are the glands that secrete milk in a woman's breasts?
Options:
A. lactic acids
B. primordial glands
C. pituitary glands
D. mammary glands | D |
Question: Like a thick cap covering the brain, the dura mater is a tough outer covering. the name comes from the latin for?
Options:
A. difficult mother
B. tough mother
C. back mother
D. protecting mother | B |
Question: Which organisms get their energy source and carbon source from organic sources?
Options:
A. herbivores
B. chemoheterotrophs
C. ectomorphs
D. sporozoans | B |
Question: What natural disaster is california most linked with?
Options:
A. fires
B. earthquakes
C. hurricanes
D. volcanoes | B |
Question: Small crustaceans exchange gases across thin areas of the cuticle; larger species have what to accomplish this?
Options:
A. noses
B. gills
C. pores
D. lungs | B |
Question: The superior vena cava and the inferior vena cava are veins that return blood lacking what to the heart?
Options:
A. oxygen
B. hemoglobin
C. carbon dioxide
D. nitrogen | A |
Question: There are only four possible bases that make up each dna nucleotide: adenine, guanine, thymine, and?
Options:
A. taurine
B. guarine
C. phenylalanine
D. cytosine | D |
Question: What affects the boiling point of water?
Options:
A. heat source
B. latter pressure
C. internal pressure
D. external pressure | D |
Question: The average length of a woman’s menstrual cycle is what?
Options:
A. 19 days
B. 5 days
C. 28 days
D. 16 days | C |
Question: Water leaves ponds and lakes through evaporation and also as what?
Options:
A. mid flow
B. outflow
C. inflow
D. influx | B |
Question: What is a biochemical compound that is a chain of amino acids called?
Options:
A. DNA
B. proteins
C. hormones
D. lipids | B |
Question: Each what is made of two identical sister chromatids?
Options:
A. chromosome
B. gene
C. helix
D. genome | A |
Question: Amino groups are found within amino acids, nicknamed the building blocks of what?
Options:
A. carbohydrates
B. lipids
C. protons
D. proteins | D |
Question: What is the name of earth’s only natural satellite?
Options:
A. titan
B. moon
C. sun
D. venus | B |
Question: Which is the lightest of the widely used structural metals?
Options:
A. calcium
B. Metal
C. magnesium
D. potassium | C |
Question: When lava flows over a large area and cools, it creates a large, flat surface of what type of rock?
Options:
A. tidal
B. metamorphic
C. sedimentary
D. igneous | D |
Question: Examples of what process are evident in many biological systems because cells are surrounded by semipermeable membranes?
Options:
A. apoptosis
B. osmosis
C. photosynthesis
D. reproduction | B |
Question: What does cartilage lack compared to bones, making it softer and less rigid?
Options:
A. protein
B. magnesium
C. calcium
D. potassium | C |
Question: What three forms does frozen precipitation take?
Options:
A. vapor, fog, ice
B. blizzard, frost, fog
C. snow, sleet, freezing rain
D. hail, wind, typhoon | C |
Question: What is a stream of moving water that flows through the ocean?
Options:
A. creek
B. tidal wave
C. current
D. waterfall | C |
Question: The elbow is an example of a what type of joint?
Options:
A. toe joint
B. hinge joint
C. pipe joint
D. frame joint | B |
Question: The first leaves of most ferns appear curled up into what?
Options:
A. fiddleheads
B. nanotubes
C. petals
D. volatiles | A |
Question: Electrophiles have a strong tendency to react with what?
Options:
A. neutrons
B. nucleophiles
C. resistors
D. acids | B |
Question: What layered form of carbon is used as a lubricant and in pencils?
Options:
A. graphite
B. lead
C. carbonite
D. copper | A |
Question: What kind of solids have particles that are arranged in a regular repeating pattern?
Options:
A. metabolic solids
B. carbon-based solids
C. salts
D. crystalline solids | D |
Question: During what in the small intestine do rings of smooth muscle repeatedly contract and then relax?
Options:
A. segmentation
B. mitosis
C. compression
D. contraction | A |
Question: Acetyl-coa is formed from the breakdown of carbohydrates, lipids, and what else?
Options:
A. proteins
B. hydrocarbons
C. hormones
D. acids | A |
Question: Juvenile hormone modulates the activity of what?
Options:
A. estrogen
B. ecdysteroid
C. reproduction
D. growth | B |
Question: What causes the red color of laterite soils?
Options:
A. iron oxides
B. toxins
C. erosion
D. oxygen | A |
Question: The scientific process of collecting data outside the lab (in the "wild") is known as what kind of work?
Options:
A. experimentation
B. scientific investigation
C. track work
D. field work | D |
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