question stringlengths 68 502 | answer stringclasses 4 values |
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Question: In a chemical reaction, the amounts of reactants and products will be constant when what state is attained?
Options:
A. equilibrium
B. peak
C. saturation
D. homogeneity | A |
Question: What protects a developing flower while it is still a bud?
Options:
A. lobes
B. petals
C. sepals
D. shell | C |
Question: What is the term for the force of attraction between things that have a mass?
Options:
A. motion
B. weight
C. gravity
D. magnetism | C |
Question: What are the long, thin protein extensions in most prokaryotic cells called?
Options:
A. analyte
B. flagellum
C. neutrons
D. cingulum | B |
Question: Dialysis is a treatment for failure of what organs?
Options:
A. lungs
B. spleen
C. liver
D. kidneys | D |
Question: What preventive measure can protect even young children against diseases such as viral meningitis?
Options:
A. malnutrition
B. vaccination
C. nutrition
D. surgical intervention | B |
Question: Renal plasma flow equals the blood flow per minute times the what?
Options:
A. leukocytes
B. hemoglobin
C. hematocrit
D. erythrocytes | C |
Question: What does lattice energy of an ionic solid measure the strength of?
Options:
A. atoms
B. bonds
C. electrons
D. metals | B |
Question: How many different types of taste can be detected by taste buds?
Options:
A. five
B. three
C. two
D. hundreds | A |
Question: What species do humans belong to?
Options:
A. monkeys
B. homo sapiens
C. homo erectus
D. hominids | B |
Question: Titration is a method to determine what in acids or bases?
Options:
A. glucose
B. maturation
C. alkalinity
D. concentration | D |
Question: How many different amino acids make up proteins.
Options:
A. 20
B. 14
C. 30
D. 25 | A |
Question: What are sores in the lining of the stomach or duodenum that are usually caused by bacterial infections or acidity?
Options:
A. clots
B. lesions
C. ulcers
D. hernia | C |
Question: In some species, what has led to the evolution of alternative male mating behavior and morphology?
Options:
A. sexual selection
B. similar selection
C. sexual process
D. distributive selection | A |
Question: What structure is made from dna and protein molecules coiled together?
Options:
A. enzymes
B. chromosome
C. atoms
D. bacterium | B |
Question: What renewable energy source converts energy from the sunlight into electricity?
Options:
A. solar energy
B. geophysical energy
C. geothermal energy
D. hydrostatic energy | A |
Question: The radial artery and which artery parallel their namesake bones, giving off smaller branches until they reach the wrist, or carpal region?
Options:
A. ulnar
B. biceps
C. humerus
D. triceps | A |
Question: The bones of the skull are connected by what type of joints?
Options:
A. adjustable
B. pivoting
C. immovable
D. semi-mobile | C |
Question: What is the lowest layer of the atmosphere?
Options:
A. troposphere
B. ionosphere
C. chromosphere
D. lithosphere | A |
Question: What is the name of the type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate?
Options:
A. bundle sheth cell
B. meristem
C. guard cell
D. cuticle | B |
Question: Phosphate-containing ocean sediments form primarily from the bodies of ocean organisms and from their what?
Options:
A. ancestors
B. blood
C. skeletons
D. excretions | D |
Question: What does erosion do to pieces of broken rock?
Options:
A. Smooth them
B. moves them
C. Cancel Them
D. lead them | B |
Question: The passing of traits from parents to offspring is done through what?
Options:
A. dna
B. blood
C. egg
D. sperm | A |
Question: In a glass of sweet tea the sugar is known as the solute and the water is known as what?
Options:
A. calcium
B. solid
C. solvent
D. pigment | C |
Question: A few earthquakes take place away from plate boundaries, these are called what?
Options:
A. deformation earthquakes
B. distant earthquakes
C. intraplate earthquakes
D. outer earthquakes | C |
Question: Red litmus paper turns what color when placed in a basic solution?
Options:
A. blue
B. white
C. orange
D. pink | A |
Question: The difference between the theoretical half-reaction reduction potential and the actual voltage required is called what?
Options:
A. overpotential
B. excess
C. resistance
D. overcharge | A |
Question: While the egg is developing, other changes are taking place in the uterus. it develops a thick lining that is full of what?
Options:
A. tiny blood vessels
B. white blood cells
C. amniotic fluid
D. large arteries | A |
Question: The neural plate undergoes a series of cell movements where it rolls up and forms a tube called what?
Options:
A. neural tube
B. occular tube
C. cell tube
D. peripheral tube | A |
Question: Due to the __________ nature of the lipids that make up cell membranes, polar molecules (such as water) and ions cannot easily diffuse across the cell membrane.
Options:
A. hydrophobic
B. hydrophylic
C. saturated
D. catalytic | A |
Question: In what way do all vertebrates reproduce?
Options:
A. sexually
B. biologically
C. asexually
D. mitosis | A |
Question: First, high temperature denatures proteins and does what to cells?
Options:
A. exposes them
B. finds them
C. develops them
D. kills them | D |
Question: What term is used to describe a collection of molecules surrounded by a phospholipid bilayer that is capable of reproducing itself?
Options:
A. atom
B. cell
C. organism
D. proteins | B |
Question: By allowing blood levels of a hormone to be regulated within a narrow range, feedback loops contribute to maintaining what state?
Options:
A. consciousness
B. homeostasis
C. hypothesis
D. hibernation | B |
Question: Collagen fibers, elastic fibers, and reticular fibers comprise what type of tissue?
Options:
A. connective tissue
B. nucleus tissue
C. intestine tissue
D. skin tissue | A |
Question: What the name of the disease where some of the alveoli of the lungs fill with fluid so they can no longer exchange gas?
Options:
A. emphysema
B. lung cancer
C. pneumonia
D. leukemia | C |
Question: What occurs when groups from the same species stop mating because of something other than physical or geographic separation?
Options:
A. sympatric speciation
B. invasive speciation
C. complementary speciation
D. extinction | A |
Question: What environment do animals with gills live in?
Options:
A. air
B. water
C. underground
D. cold | B |
Question: What is the boiling and freezing point of water in celcius?
Options:
A. 100 degrees c and 0 degrees c
B. 212 degrees c and 32 degrees c
C. 212 degrees c and 0 degrees c
D. 100 degrees c and 32 degrees c | A |
Question: What are living things that obtain glucose by eating self feeders called?
Options:
A. viruses
B. heterotrophs
C. producers
D. chimeras | B |
Question: Virtually every task performed by living organisms requires this?
Options:
A. solids
B. mineral
C. metals
D. energy | D |
Question: The binding of what helps eliminate antigens by phagocytosis and complement-mediated lysis
Options:
A. proteins
B. antibodies
C. amino acids
D. fats | B |
Question: What muscles are used to pump water over the gills?
Options:
A. muscles and pharynx
B. pharynx and tonsils
C. jaws and pharynx
D. lungs and pharynx | C |
Question: Compounds like sodium chloride form structures called what?
Options:
A. hydrocarbons
B. microorganisms
C. crystals
D. ions | C |
Question: What are made of long chains consisting almost solely of carbon and hydrogen?
Options:
A. lipids
B. nucleic acids
C. enzymes
D. proteins | A |
Question: When a series of measurements is precise but not what, the error is usually systematic?
Options:
A. velocity
B. length
C. accurate
D. color | C |
Question: Inserting copies of normal genes into a patient with defective genes is known as?
Options:
A. chromosome treatment
B. cloning
C. gene therapy
D. pattern therapy | C |
Question: What type of reproduction usually occur during times of environmental stress?
Options:
A. asexual reproduction
B. hysterical reproduction
C. internal reproduction
D. sexual reproduction | D |
Question: All forms of energy can be interconverted. three things can change the energy of an object: the transfer of heat, work performed on or by an object, or some combination of what?
Options:
A. temperature and work
B. humidity and work
C. cold and energy
D. heat and work | D |
Question: What science includes many fields of science related to our home planet?
Options:
A. meteorology
B. earth science
C. biology
D. zoology | B |
Question: What are alloys that are mostly composed of mercury known as?
Options:
A. halogens
B. amalgams
C. compounds
D. fillings | B |
Question: What are made from highly reflective metal that is applied to a curved or flat piece of glass?
Options:
A. kaleidoscopes
B. mirrors
C. lenses
D. prisms | B |
Question: What do ranchers fear will happen if wolves return?
Options:
A. loss of environment
B. vegetation predation
C. livestock predation
D. human predation | C |
Question: How many types of surface waves are there?
Options:
A. two
B. over a hundred
C. three
D. six | A |
Question: What is the rigid layer that is found outside the cell membrane and surrounds the cell?
Options:
A. cell shield
B. cell root
C. cell wall
D. cell barrier | C |
Question: Surface tension of alveolar fluid, which is mostly water, creates an inward pull of the tissue of what organ?
Options:
A. lung
B. brain
C. spleen
D. heart | A |
Question: What type of tumor mostly does not cause serious problems and can be completely removed by surgery?
Options:
A. toxic
B. persistent
C. benign
D. malignant | C |
Question: What supports and protects the soft organs of the body?
Options:
A. Muscle
B. skeleton
C. Skin
D. skull | B |
Question: What celestial body is the earth’s main source of energy?
Options:
A. moon
B. rivers
C. sun
D. ocean | C |
Question: What do you call the horizontal stems of a strawberry plant that run over the ground surface?
Options:
A. sprouts
B. root volunteers
C. stolons
D. climbing vines | C |
Question: Glaciers are incredibly powerful agents of what?
Options:
A. insulation
B. climate change
C. extinction
D. erosion | D |
Question: What type of pressure is the pressure exerted by gas particles in earth’s atmosphere as those particles collide with objects?
Options:
A. adjacent pressure
B. atmospheric pressure
C. vertical pressure
D. adjacent pressure | B |
Question: What helps the plasma membrane keep its shape?
Options:
A. molecules of carbohydrates
B. molecules of cholesterol
C. cytoplasm
D. molecules of oxygen | B |
Question: What type of reproduction only involves one parent?
Options:
A. organic
B. primitive
C. binary
D. asexual | D |
Question: What is defined as a repeating series of events that include growth, dna synthesis, and cell division?
Options:
A. cell cycle
B. meiosis
C. puberty
D. photosynthesis | A |
Question: How metalloids behave in chemical interactions with other elements depends mainly on the number of what, in the outer energy level of their atoms?
Options:
A. neutrons
B. electrons
C. positrons
D. protons | B |
Question: What distinguishing characteristic of annelid anatomy shows specialization and adaptation?
Options:
A. segmentation
B. asymmetry
C. beautiful
D. compression | A |
Question: The spermatids are transported from the testes to where?
Options:
A. vas
B. epididymis
C. abdominis
D. Duodenum | B |
Question: How does water from roots reach the leaves?
Options:
A. water - raising cells
B. water-phobic cells
C. water-conducting cells
D. water - combining cells | C |
Question: As a polycrystalline material solidifies, grains with irregular shapes form. the interfaces between grains constitute grain what?
Options:
A. patterns
B. obstacles
C. boundaries
D. waves | C |
Question: Motors are the most common application of magnetic force on current-carrying wires. motors have loops of wire in this?
Options:
A. capacitors
B. spark plugs
C. magnetic field
D. electrical circuit | C |
Question: What makes and stores pigments that give petals and fruit their orange and yellow colors?
Options:
A. protozoa
B. sporozoans
C. chromoplasts
D. pores | C |
Question: What term is used to describe when a liquid is the temperature at which its equilibrium vapor pressure is equal to the pressure exerted on the liquid by its gaseous surroundings?
Options:
A. evaporating point
B. burning point
C. boiling point
D. freezing point | C |
Question: When electrons return to a lower energy level, they emit the excess energy in the form of what?
Options:
A. energy
B. electricity
C. weight
D. light | D |
Question: What is another term for nearsightedness?
Options:
A. hypoxia
B. myopia
C. anemia
D. glaucoma | B |
Question: What are the areas located at fixed distances from the nucleus of the atom?
Options:
A. molar levels
B. energy levels
C. orbit points
D. atomic regions | B |
Question: In which state of matter do particles take the shape of their container, but cannot expand to fill it?
Options:
A. chemical
B. mixture
C. gas
D. liquid | D |
Question: Runoff is likely to cause more what if the land is bare?
Options:
A. weathering
B. erosion
C. sediment
D. abrasion | B |
Question: Cations have what type of charge?
Options:
A. negative
B. positive
C. constant
D. neutral | B |
Question: What organ is subdivided into ascending, descending, transverse and sigmoid parts?
Options:
A. lungs
B. heart
C. uterus
D. colon | D |
Question: Ammonia, urea, and uric acid are examples of what kind of waste?
Options:
A. nitrogenous
B. oxygenous
C. carbonous
D. sulphurous | A |
Question: What are variants of genes called?
Options:
A. allergens
B. antigens
C. mutations
D. alleles | D |
Question: Mushrooms are an example of what type of organism, which includes beneficial and toxic specimens?
Options:
A. spores
B. fungi
C. bacteria
D. seeds | B |
Question: Comparing what sequences provides clues to evolution and development?
Options:
A. DNA
B. genes
C. genome
D. organisms | C |
Question: What is a measure of the average amount of energy of motion, or kinetic energy, a system contains called?
Options:
A. variation
B. size
C. precipitation
D. temperature | D |
Question: What is the minimum mass capable of supporting sustained fission called?
Options:
A. concentrated mass
B. particular mass
C. baseline mass
D. critical mass | D |
Question: Many hydrocarbons are cyclic and adopt specific three-dimensional structures that influence their physical and what properties?
Options:
A. liquid
B. chemical
C. electrical
D. radiation | B |
Question: The secondary wall contains _________ , a secondary cell component in plant cells that have completed cell growth/expansion.
Options:
A. glucogen
B. lignin
C. cellulose
D. cytoplasm | B |
Question: What does the cell cycle do?
Options:
A. only divide cells
B. create new cells
C. only reproduce cells
D. divide and reproduce cells | D |
Question: Inside the nasal area of the skull, the nasal cavity is divided into halves by the what?
Options:
A. nasal septum
B. cerebral cortex
C. cytoplasm
D. cell wall | A |
Question: Bacteria can be chemotrophs, which obtain what by breaking down chemical compounds in their environment?
Options:
A. waste
B. energy
C. food
D. chemials | B |
Question: Habitat loss, introduced species, overharvesting, and global change are major threats to what?
Options:
A. biodiversity
B. the earth's gravity
C. the sun
D. transportation | A |
Question: What "plumbing" structures inside the veins maintain a unidirectional flow of blood despite the low blood pressure?
Options:
A. funnels
B. pumps
C. tubes
D. valves | D |
Question: What do we call the cartilaginous structure that surrounds the notochrod?
Options:
A. clavicle
B. membrane
C. arcualia
D. osteocytes | C |
Question: What is the process of the transfer of pollen from an anther to a stigma in angiosperms called?
Options:
A. evolution
B. wind
C. pollination
D. grabation | C |
Question: Despite its small size, an erythrocyte contains about 250 million molecules of what?
Options:
A. plasma
B. calcium
C. potassium
D. hemoglobin | D |
Question: How many variables are used to describe the condition of a gas?
Options:
A. four
B. three
C. one
D. five | A |
Question: What is a suggested explanation for a phenomenon or a suggested explanation for a relationship between many phenomena called?
Options:
A. hypothesis
B. process
C. query
D. system | A |
Question: Land plants are classified into two major groups according to the absence or presence of what tissue?
Options:
A. vascular
B. root
C. bacterial
D. disease | A |
Question: What type of treatment is necessary for anaphylaxis?
Options:
A. outpatient
B. allergy shot
C. emergency
D. intensive care | C |
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