question stringlengths 68 502 | answer stringclasses 4
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Question: What type of activity in the brain causes epilepsy?
Options:
A. abnormal electrical activity
B. bleeding
C. hormone imbalance
D. toxic overload | A |
Question: What does a healthy immune system fight off?
Options:
A. bacteria and viruses
B. infections and other dieases
C. microorganisms and other dieases
D. respiratory and other dieases | B |
Question: Groundwater dissolves minerals and rocks into what?
Options:
A. gravel
B. grit
C. sand
D. ions | D |
Question: What is the term for a certain form of matter that has the same physical properties throughout?
Options:
A. structure
B. balance
C. phase
D. wave | C |
Question: Bacteria are responsible for many types of what in humans?
Options:
A. food
B. smells
C. colors
D. diseases | D |
Question: Humans and other animals can suffer from diets lacking in what essential "ingredients"?
Options:
A. nutrients
B. fiber
C. steroids
D. liquids | A |
Question: The size and symmetry of a beetle’s or an elk’s antlers or a grasshopper’s song communicate rather clearly their state of what?
Options:
A. need
B. society
C. health
D. problem | C |
Question: How is blood supplied from the mother to the fetus?
Options:
A. umbilical cord
B. vagina
C. brain stem
D. spinal cord | A |
Question: How long does membrane depoloriazation typically last for?
Options:
A. 5 minutes
B. one minute
C. 3 seconds
D. 1 hour | B |
Question: What are the three types of mixtures?
Options:
A. cosmic , suspensions , colloids
B. absorbing , suspensions , colloids
C. Powders, Gels, Smooth
D. solutions, suspensions, colloids | D |
Question: Double strands of what wrap around histone proteins to form nucleosomes, which are coiled into a chromatin fiber?
Options:
A. ribosomes
B. bacteria
C. chromatids
D. dna | D |
Question: What is the process when animals maintain an internal temperature?
Options:
A. homeostasis
B. thermoregulation
C. bioaccumulation
D. osmoregulation | B |
Question: Both androgen secretion and spermatogenesis occur continuously starting with what?
Options:
A. mutation
B. birth
C. walking
D. puberty | D |
Question: Where does the process of digestion start?
Options:
A. small intestine
B. stomach
C. esophagus
D. mouth | D |
Question: As distance from the source increases, the area covered by the sound waves increases, lessening what?
Options:
A. duration
B. intensity
C. velocity
D. density | B |
Question: Mountain ranges, plateaus, and plains are features of what large landforms?
Options:
A. States
B. planets
C. Countries
D. continents | D |
Question: How many pathogens can each droplet contain?
Options:
A. billions
B. hundreds
C. tens
D. thousands | D |
Question: The ability to change color, separately mobile and stereoscopic eyes, and rapidly extrudable tongues are distinguishing features of what lizards?
Options:
A. crocodiles
B. snakes
C. chameleons
D. geckos | C |
Question: What is the other name of newton’s first law?
Options:
A. law of matter
B. law of momentum
C. law of inertia
D. mass and matter | C |
Question: The velocity at the beginning of the time interval is called what?
Options:
A. initial velocity
B. previous velocity
C. growing velocity
D. internal velocity | A |
Question: In which sphere of the atmosphere do the northern and southern lights occur?
Options:
A. lithosphere
B. thermosphere
C. stratosphere
D. ionosphere | B |
Question: What carbohydrate from fruit juices is a gel-forming substance important in jelly making?
Options:
A. gelatin
B. cellulose
C. pectin
D. potassium | C |
Question: Warm water from the equator mixes with cold water from where?
Options:
A. the oceans
B. the continents
C. the poles
D. the tropics | C |
Question: A single amino acid substitution in hemoglobin leads to what disease?
Options:
A. AIDS
B. sickle cell anemia
C. down's syndrome
D. crohn's disease | B |
Question: Why does the heating element of a toaster get hot so quickly?
Options:
A. charged battery
B. good insulator
C. magnetic force
D. good conductor | D |
Question: What is the industrial chemical produced in greatest quantity worldwide?
Options:
A. boric acid
B. liquid acid
C. sulfuric acid
D. gaseous acid | C |
Question: What term is used to describe a protein that acts as a biological catalyst?
Options:
A. nucleus
B. protein
C. enzyme
D. heterozygote | C |
Question: What is the transfer of energy by waves called?
Options:
A. vibration
B. radiation
C. convection
D. evaporation | B |
Question: What are the the individual protein subunits making up the capsid called?
Options:
A. telomeres
B. pores
C. capsomeres
D. axons | C |
Question: The eukaryotic cell cycle is regulated by a what?
Options:
A. molecular control system
B. nucleus control system
C. protons control system
D. anti-lock control system | A |
Question: How many identical daughter cells are created at the end of cytokinesis?
Options:
A. four
B. one
C. three
D. two | D |
Question: Which disease does the bacteria salmonella cause in humans?
Options:
A. water poisioning
B. skin poisoning
C. food poisoning
D. blood poisoning | C |
Question: What term describes the application of knowledge to real-world problems and is practiced by engineers?
Options:
A. science
B. mechanisms
C. invention
D. technology | D |
Question: What surrounds the lungs in a thoracic cavity?
Options:
A. single membrane
B. double membrane
C. calcium
D. water | B |
Question: When lactose is absent, a repressor protein binds to what?
Options:
A. worker
B. operator
C. differential
D. network | B |
Question: The four moons of jupiter are collectively named after what 17th century astronomer, who discovered them?
Options:
A. copernicus
B. darwin
C. galileo
D. Linnaeus | C |
Question: What is the term for the distance between two corresponding points on adjacent waves?
Options:
A. wavelength
B. bandwidth
C. arc wave
D. variation | A |
Question: Which instruments are used to measure the angle of the slope of a volcano?
Options:
A. calipers
B. tiltmeters
C. compass
D. altimeter | B |
Question: What is the term for matter that does not let any light pass through?
Options:
A. opaque
B. dark
C. reflective
D. mirrored | A |
Question: Gain or loss of what causes an atom to become a negatively or positively charged ion?
Options:
A. nucleus
B. electrons
C. neutrons
D. protons | B |
Question: The electrochemical potential across a membrane determines the tendency of an ion to do what?
Options:
A. destroy the membrane
B. cross the membrane
C. attach to the membrane
D. move away from the membrane | B |
Question: Nucleic acids are polymers made of monomers called what?
Options:
A. carotenoids
B. loops
C. peptides
D. nucleotides | D |
Question: Antibodies also mark pathogens for destruction by which cells?
Options:
A. platelets
B. phagocytic
C. leukocytes
D. interferons | B |
Question: What are small organelles and are the site of protein synthesis called.
Options:
A. ribosomes
B. chromosomes
C. chloroplasts
D. chromosomes | A |
Question: What term is defined as the ability to locate objects in the dark by bouncing sound waves off them.
Options:
A. thermodynamics
B. morphology
C. echolocation
D. night vision | C |
Question: Ringworm and athlete’s foot are common human diseases caused by types of what?
Options:
A. viruses
B. fungi
C. multicellular bacteria
D. acids | B |
Question: Vertical layering is an important feature of the terrestrial type of what kind of community?
Options:
A. environment
B. ecosystem
C. biome
D. habitat | C |
Question: What do many cells depend on glucose for?
Options:
A. energy
B. osmosis
C. food
D. heating | A |
Question: When continental crust is pulled apart, it breaks into blocks that are separated by what?
Options:
A. faults
B. holes
C. levels
D. layers | A |
Question: What body part boasts three articulations and includes the patella?
Options:
A. knee
B. ankle
C. hip
D. elbow | A |
Question: The physical properties of gases are predictable using mathematical formulas known as what?
Options:
A. state laws
B. air laws
C. gas laws
D. vapor laws | C |
Question: What is the disease where some alveoli of the lungs fill with fluid?
Options:
A. lyme disease
B. lung cancer
C. leukemia
D. pneumonia | D |
Question: The primary function of leaves is to collect sunlight and make food by what process?
Options:
A. photosynthesis
B. osmosis
C. duplicate process
D. nuclear fission | A |
Question: In which type of reaction are compounds formed?
Options:
A. acid reaction
B. balanced reaction
C. chemical reaction
D. gaseous reaction | C |
Question: For feeding, the head contains one pair of mandibles and two pairs of what?
Options:
A. maxillae
B. chelicerae
C. tracheae
D. antennae | A |
Question: What term given to animals like reptiles is a synonym for ectothermic, which means that their heat comes from their environment?
Options:
A. warm-blooded
B. thermal regulating
C. hot-blooded
D. cold-blooded | D |
Question: What forms in the ocean from the seafloor spreading?
Options:
A. tsunamis
B. earthquakes
C. underwater volcanoes
D. new oceanic crust | D |
Question: What does ozone in the stratosphere protect us from?
Options:
A. acid rain
B. comets
C. solar rays
D. solar traces | C |
Question: What is the basic unit of matter?
Options:
A. atom
B. nucleus
C. neutron
D. dark material | A |
Question: What is the name of the protein that is found in hairs and nails?
Options:
A. cellulose
B. keratin
C. chromatin
D. Skin | B |
Question: When fuel is burned most of the energy is released as what?
Options:
A. precipitation
B. humidity
C. heat
D. condensation | C |
Question: A change in one or more physical properties of matter without any change in chemical properties is called what?
Options:
A. positive change
B. atmospheric change
C. negative change
D. physical change | D |
Question: Particles with what type of electric charges attract each other?
Options:
A. similar
B. same
C. simple
D. opposite | D |
Question: Avoiding carcinogens helps lower the risk of what?
Options:
A. colds and flu
B. sunburn
C. cancer
D. radiation | C |
Question: What is the mechanism that accounts for the drifting of continents?
Options:
A. volcanic spreading
B. ridges spreading
C. earth spreading
D. seafloor spreading | D |
Question: In a dehydration reaction, what is removed as two monomers are joined together?
Options:
A. nitrogen
B. water
C. carbon
D. air | B |
Question: What is the smallest unit of structure and function of all living organisms?
Options:
A. organelle
B. the cell
C. organ
D. chromosome | B |
Question: The dual character is critical for the formation of the what?
Options:
A. carbon bilayer
B. lipid bilayer
C. tissues bilayer
D. muscle bilayer | B |
Question: In humans, a zygote has how many chromosomes?
Options:
A. 23
B. 36
C. 46
D. 42 | C |
Question: The elements are arranged in rows, each representing the filling of what shell?
Options:
A. electron
B. neutron
C. plasma membrane
D. proton | A |
Question: The water cycle is powered by energy from where?
Options:
A. earth
B. sun
C. living things
D. atmosphere | B |
Question: When lactose is present in the cell, what allows the lac genes to be expressed?
Options:
A. concentration of repressor protein
B. nonbinding of repressor protein
C. the addition of water
D. binding of expressor protein | B |
Question: What class of animals, translated as “head foot”, includes octopuses, squids, cuttlefish, and nautilus?
Options:
A. mollusks
B. crustaceans
C. cephalopods
D. bivalves | C |
Question: What can be calculated by solving the average speed formula?
Options:
A. mass or time
B. accelaration
C. distance or time
D. distance or mass | C |
Question: Transverse divisions are associated with leaf elongation, and longitudinal divisions are associated with what?
Options:
A. leaf shedding
B. leaf broadening
C. leaf multiplying
D. leaf coloring | B |
Question: Of the four nerve plexuses, two are found at the cervical level, one at the lumbar level, and one at which level ?
Options:
A. sacral
B. cranial
C. vascular
D. peripheral | A |
Question: When does sublimation occur?
Options:
A. when the snow melts the ice caps
B. when the ice and snow change directly into water vapors
C. when the wind changes direction
D. when the ice and sand change directly into water vapors | B |
Question: What organism is responsible for most decomposition in forest?
Options:
A. yeast
B. coral
C. fungi
D. bacteria | C |
Question: Cancer of the testes is most common in males between what ages?
Options:
A. 70 and 90
B. 15 and 35
C. 50 and 60
D. 10 and 20 | B |
Question: Prions are slow-acting, virtually indestructible infectious proteins that cause diseases of what vital organ in mammals?
Options:
A. liver
B. heart
C. lung
D. brain | D |
Question: What does the male reproductive system consist of?
Options:
A. organs that produce estrogen
B. structures that produce ova
C. structures that produce sperm and secrete testosterone
D. structures that collect urine | C |
Question: What causes genetic disorders in humans?
Options:
A. alterations of chromosome
B. pollutants of chromosome
C. variations of chromosome
D. alterations of genes | A |
Question: What can lead to a loss of genetic variation within populations?
Options:
A. migration
B. adaptation
C. genetic drift
D. natural selection | C |
Question: Four electron groups orient themselves into what shape that has four faces?
Options:
A. multicellular
B. spherical
C. circular
D. tetrahedron | D |
Question: The primary hormones derived from lipids are what?
Options:
A. melatonins
B. antibiotics
C. steroids
D. amino acids | C |
Question: What are most metal objects made of?
Options:
A. metal alloys
B. aluminum
C. tin
D. bronze | A |
Question: What law explains how the change in direction of the light ray depends on how the speed of light changes, which in turn is related to the indices of refraction of the media involved?
Options:
A. Born's law
B. law of refraction
C. Newton's first law
D. Boyle's law | B |
Question: What limits the growth or development of an organism, population, or process?
Options:
A. limiting membrane
B. mutation factor
C. limiting factor
D. decreasing factor | C |
Question: The primary application of biotechnology is in what field?
Options:
A. medicine
B. psychology
C. chemistry
D. physics | A |
Question: In naming ternary compounds, which type of particle is stated first?
Options:
A. cation
B. molecule
C. anion
D. subatomic | A |
Question: The pollen grain absorbs water and does what after it adheres to the stigma of a carpel?
Options:
A. germinates
B. blooms
C. dissolves
D. reproduces | A |
Question: What term refers to change in position over time?
Options:
A. Position Replacement
B. acceleration
C. Direction Replacement
D. velocity | D |
Question: Ice ages, continental drift, and giant meteorites striking earth have caused what phenomenon?
Options:
A. gravity
B. extinction
C. depletion
D. waves | B |
Question: What can all living things sense and respond to in their environment?
Options:
A. warmth
B. wind
C. stimuli
D. sunlight | C |
Question: What do we call use of electric current to encode information?
Options:
A. metals
B. products
C. electronics
D. ferious | C |
Question: How many additional pairs of appendages do arachnids have?
Options:
A. 0
B. 2
C. 4
D. 6 | B |
Question: Melting points are temperatures that are high enough to separate liquids from which substances?
Options:
A. solids
B. seeds
C. gases
D. oils | A |
Question: Strong, stable bonds between carbon atoms produce complex molecules containing chains, branches, and rings; the chemistry of these compounds is called what?
Options:
A. inorganic chemistry
B. animal chemistry
C. organic chemistry
D. nuclear chemistry | C |
Question: What are the blood vessels that carry blood toward the heart and tend to have thinner walls?
Options:
A. capillaries
B. veins
C. clots
D. glands | B |
Question: What is a measure of the amount of space a substance or an object takes up?
Options:
A. mass
B. speed
C. density
D. volume | D |
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