q_id
stringlengths
6
6
title
stringlengths
3
546
selftext
stringlengths
0
4.44k
category
stringclasses
12 values
subreddit
stringclasses
1 value
answers.a_id
listlengths
1
489
answers.text
listlengths
1
4
answers.score
listlengths
1
4
answers.text_urls
listlengths
1
489
title_urls
listlengths
1
1
selftext_urls
listlengths
1
1
null
Which of the following is the correct answer to the question: Enzymes - proteins which speed up what? 1. liquid reactions 2. physical reactions 3. crystals reactions 4. chemical reactions
null
null
null
null
[ "liquid reactions", "physical reactions", "crystals reactions", "chemical reactions" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What do you call the sudden flow of mud down a slope because of gravity? 1. mountainside 2. rockflow 3. typhoon 4. mudslide
null
null
null
null
[ "mountainside", "rockflow", "typhoon", "mudslide" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What causes acid rain, ozone depletion, and global warming? 1. air pollution 2. ozone layer 3. water pollution 4. radiation
null
null
null
null
[ "air pollution", "ozone layer", "water pollution", "radiation" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by what? 1. hard shell 2. amniotic membranes 3. yolk 4. albumen
null
null
null
null
[ "hard shell", "amniotic membranes", "yolk", "albumen" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: The cells of what basic plant structure lack chloroplasts? 1. stem 2. ferns 3. leaf 4. root
null
null
null
null
[ "stem", "ferns", "leaf", "root" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What muscle in the chest helps inflate and deflate the lungs? 1. cartilage 2. heart 3. pectoral 4. diaphragm
null
null
null
null
[ "cartilage", "heart", "pectoral", "diaphragm" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Where in the lungs does gas exchange between the air and blood takes place? 1. alveoli 2. ganglion 3. bronchial tube 4. left lobe
null
null
null
null
[ "alveoli", "ganglion", "bronchial tube", "left lobe" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What are hollow cylinders and are the thickest of the cytoskeleton structures? 1. cytoplasm 2. vesicles 3. nucleotides 4. microtubules
null
null
null
null
[ "cytoplasm", "vesicles", "nucleotides", "microtubules" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What simple sugar is the cell's primary source of energy? 1. glucose 2. carbon 3. nicotine 4. chloride
null
null
null
null
[ "glucose", "carbon", "nicotine", "chloride" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the approximate population on the earth? 1. 41 billion 2. 9 trillion 3. 7 billion 4. 7.3 billion
null
null
null
null
[ "41 billion", "9 trillion", "7 billion", "7.3 billion" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: A change in the sequence of bases in dna or rna is called a what? 1. isolation 2. accumulation 3. mutation 4. infection
null
null
null
null
[ "isolation", "accumulation", "mutation", "infection" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the product of microfilament movement powered by chemical energy? 1. muscle fusion 2. muscle contraction 3. blood circulation 4. nerve stimulation
null
null
null
null
[ "muscle fusion", "muscle contraction", "blood circulation", "nerve stimulation" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is a measure of how much energy is needed to change the temperature of a substance? 1. specific gravity 2. momentum 3. specific heat 4. thermal potential
null
null
null
null
[ "specific gravity", "momentum", "specific heat", "thermal potential" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the common term for animals in the phylum porifera? 1. corals 2. sponges 3. crustaceans 4. sharks
null
null
null
null
[ "corals", "sponges", "crustaceans", "sharks" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What term is used to describe a change in the characteristics of living things over time? 1. customization 2. evolution 3. reproduction 4. generation
null
null
null
null
[ "customization", "evolution", "reproduction", "generation" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What can accept a wide range of carbohydrates for catabolism? 1. cellular respiration 2. enzymes 3. photosynthesis 4. glycolysis
null
null
null
null
[ "cellular respiration", "enzymes", "photosynthesis", "glycolysis" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What includes all living things within all their environments, including everywhere life exists, from the upper atmosphere, to the top of the soil, to ocean bottoms? 1. biome 2. community 3. biosphere 4. habitat
null
null
null
null
[ "biome", "community", "biosphere", "habitat" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is unique and found in all living things because it can form up to four covalent bonds between atoms or molecules? 1. carbon 2. oxygen 3. potassium 4. hydrogen
null
null
null
null
[ "carbon", "oxygen", "potassium", "hydrogen" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What kind of rock is gypsum? 1. metamorphic 2. igneous 3. sedimentary 4. basalt
null
null
null
null
[ "metamorphic", "igneous", "sedimentary", "basalt" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What component of a prokaryote is unique in molecular composition and mechanism of propulsion? 1. the amoeba 2. the membrane 3. the flagella 4. the sporangia
null
null
null
null
[ "the amoeba", "the membrane", "the flagella", "the sporangia" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: The sum of the masses of the atoms in the formula is referred to as what? 1. atomic mass 2. magnetic mass 3. molecular mass 4. nucleus mass
null
null
null
null
[ "atomic mass", "magnetic mass", "molecular mass", "nucleus mass" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What size of ring will a summer drought cause in a tree? 1. larger 2. smaller 3. medium 4. giant
null
null
null
null
[ "larger", "smaller", "medium", "giant" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the technical term for species that produce their own body heat and regulate their internal temperature independently of the outside temperature? 1. Phototrophic 2. endothermic 3. osmotic 4. hydrostatic
null
null
null
null
[ "Phototrophic", "endothermic", "osmotic", "hydrostatic" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the transparent outer covering of the eye? 1. cornea 2. iris 3. retina 4. pupil
null
null
null
null
[ "cornea", "iris", "retina", "pupil" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Photoreceptors in each ocellus receive light only through the opening where there are none of which cells? 1. secreted 2. clear 3. pigmented 4. opqaue
null
null
null
null
[ "secreted", "clear", "pigmented", "opqaue" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What helps form the walls of internal organs such as the heart and stomach? 1. blood 2. valves 3. tissues 4. muscles
null
null
null
null
[ "blood", "valves", "tissues", "muscles" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: How many valence electrons does helium have? 1. six 2. Five 3. three 4. two
null
null
null
null
[ "six", "Five", "three", "two" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What is continuously changing within a circuit in an analog signal? 1. energy 2. voltage 3. frequency 4. amplitude
null
null
null
null
[ "energy", "voltage", "frequency", "amplitude" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is made and stored primarily in the cells of the liver and muscles? 1. glucose 2. carbon dioxide 3. glycogen 4. oxygen
null
null
null
null
[ "glucose", "carbon dioxide", "glycogen", "oxygen" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Electromagnetic waves vary in wavelength and in what property, which is lower in waves of longer wavelengths? 1. size 2. frequency 3. resonance 4. density
null
null
null
null
[ "size", "frequency", "resonance", "density" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: In the case of transverse waves, the movement of the medium is perpendicular to the direction of the what? 1. fuel movement 2. energy movement 3. pressure movement 4. friction movement
null
null
null
null
[ "fuel movement", "energy movement", "pressure movement", "friction movement" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Inserting an extra plane of atoms into a crystal lattice produces what? 1. edge dislocation 2. spot dislocation 3. spot location 4. edge location
null
null
null
null
[ "edge dislocation", "spot dislocation", "spot location", "edge location" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: The core of a nuclear reactor generates a large amount of what type of energy from the decay of fission products, even when the power-producing fission chain reaction is turned off? 1. erosion 2. evaporation 3. thermal 4. elastic
null
null
null
null
[ "erosion", "evaporation", "thermal", "elastic" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Electric current is measured in coulombs per second, also called what? 1. joules 2. amperes 3. watts 4. voltages
null
null
null
null
[ "joules", "amperes", "watts", "voltages" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the name of the "point" that refers to the temperature at which water vapor condenses? 1. dew point 2. water point 3. brine point 4. melting point
null
null
null
null
[ "dew point", "water point", "brine point", "melting point" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Body plans do provide a succinct way to compare and contrast what? 1. distinctive animal features 2. degenerative animal features 3. missing animal features 4. key animal features
null
null
null
null
[ "distinctive animal features", "degenerative animal features", "missing animal features", "key animal features" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Once classified as plants, fungi have chitin rather than cellulose in what cell structures? 1. mitochondria 2. cell ridges 3. platelets 4. cell walls
null
null
null
null
[ "mitochondria", "cell ridges", "platelets", "cell walls" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What type of oceans are hostile to algae and cytoplankton? 1. colder 2. shallower 3. warmer 4. deeper
null
null
null
null
[ "colder", "shallower", "warmer", "deeper" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Organelles whose membranes are specialized for aerobic respiration are called what? 1. mitosis 2. chloroplasts 3. vacuoles 4. mitochondria
null
null
null
null
[ "mitosis", "chloroplasts", "vacuoles", "mitochondria" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: The regions of a material where the north and south poles of atoms are aligned are called what? 1. cores 2. magnetic rays 3. magnetic domains 4. observed domains
null
null
null
null
[ "cores", "magnetic rays", "magnetic domains", "observed domains" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is another term for body chromosomes? 1. Chromosomes 2. autosomes 3. subsets 4. quasars
null
null
null
null
[ "Chromosomes", "autosomes", "subsets", "quasars" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Unlike amphibians, reptiles do not have what stage? 1. reproductive 2. adult 3. larval 4. egg
null
null
null
null
[ "reproductive", "adult", "larval", "egg" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What basic plant structure can add support and anchorage? 1. roots 2. soils 3. stems 4. lower leaves
null
null
null
null
[ "roots", "soils", "stems", "lower leaves" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Locus refers to the position of what on a chromosome, which controls the characteristics of an organism? 1. genome 2. rna 3. gamete 4. gene
null
null
null
null
[ "genome", "rna", "gamete", "gene" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Fish hatch into larvae that are different from the adult form of? 1. sex 2. color 3. species 4. parasites
null
null
null
null
[ "sex", "color", "species", "parasites" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What kind of islands provide natural protection to shorelines? 1. edge islands 2. barrier islands 3. patch islands 4. locational islands
null
null
null
null
[ "edge islands", "barrier islands", "patch islands", "locational islands" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Fruit-eating bats receive food from plants and, in return, help these plants by doing what? 1. fertilizing them 2. pollinating seeds 3. spreading seeds 4. protecting them
null
null
null
null
[ "fertilizing them", "pollinating seeds", "spreading seeds", "protecting them" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is determined by the amount of energy in molecules? 1. momentum 2. kingdom 3. radioactivity 4. state of matter
null
null
null
null
[ "momentum", "kingdom", "radioactivity", "state of matter" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Biomass is the mass of biological what? 1. tissues 2. proteins 3. lipids 4. organisms
null
null
null
null
[ "tissues", "proteins", "lipids", "organisms" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: The primary nitrogenous waste material secreted by ureotelic animals is what substance? 1. carbon 2. urea 3. nitrate 4. ammonia
null
null
null
null
[ "carbon", "urea", "nitrate", "ammonia" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What system makes sure leaked blood returns back to the bloodstream? 1. symptomatic 2. lymphatic 3. somatic 4. cerebral
null
null
null
null
[ "symptomatic", "lymphatic", "somatic", "cerebral" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Enthalpy changes are measured by using what? 1. inversion 2. infraction 3. calorimetry 4. fluorescence
null
null
null
null
[ "inversion", "infraction", "calorimetry", "fluorescence" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: The cell walls of fungi are made of what? 1. chitin 2. cartilage 3. mucous 4. lectin
null
null
null
null
[ "chitin", "cartilage", "mucous", "lectin" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: When blood engorged capillaries leak fluid into neighboring tissues, what occurs? 1. swelling 2. seeping 3. infection 4. bleeding
null
null
null
null
[ "swelling", "seeping", "infection", "bleeding" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Will contour lines ever cross? 1. in rare cases 2. yes 3. no 4. always
null
null
null
null
[ "in rare cases", "yes", "no", "always" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Species of organisms that have permanently died out can also be called what? 1. inherited 2. succinct 3. occuring 4. extinct
null
null
null
null
[ "inherited", "succinct", "occuring", "extinct" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Are the majority of archaea chemotrophs or photosynthetic? 1. photosynthetics 2. chemotrophs 3. autotrophs 4. neither
null
null
null
null
[ "photosynthetics", "chemotrophs", "autotrophs", "neither" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Oxygen is essentially just a waste product of the light reactions of what? 1. glycolysis 2. electrolysis 3. Fibrinolysis 4. photosynthesis
null
null
null
null
[ "glycolysis", "electrolysis", "Fibrinolysis", "photosynthesis" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the process by which almost all plants make food? 1. photosynthesis 2. melting 3. reactions 4. digestion
null
null
null
null
[ "photosynthesis", "melting", "reactions", "digestion" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Some enzymes require the presence of a non-protein molecule to function properly. what is that molecule called? 1. cofactor 2. coenzymes 3. substrate 4. prothetic
null
null
null
null
[ "cofactor", "coenzymes", "substrate", "prothetic" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What stimulates the changes of pubery? 1. mutation 2. sex hormones 3. parenting 4. sex education
null
null
null
null
[ "mutation", "sex hormones", "parenting", "sex education" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What are the male reproductive cells called? 1. sperm 2. ova 3. plasma 4. mucus
null
null
null
null
[ "sperm", "ova", "plasma", "mucus" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is one function of the nervous system in humans? 1. controlling thought 2. controlling muscles 3. controlling emotion 4. producing hormones
null
null
null
null
[ "controlling thought", "controlling muscles", "controlling emotion", "producing hormones" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the diversity of living things called? 1. ecosystem 2. degradation 3. biodiversity 4. life cycle
null
null
null
null
[ "ecosystem", "degradation", "biodiversity", "life cycle" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What kind of mammalian reproduction is risky for the offspring but not the mother? 1. monotreme 2. cactaceae 3. sexual 4. asexual
null
null
null
null
[ "monotreme", "cactaceae", "sexual", "asexual" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What do we call the force of attraction or repulsion between electrically charged particles? 1. electromagnetic force 2. mechanical force 3. gravitational pull 4. chemical force
null
null
null
null
[ "electromagnetic force", "mechanical force", "gravitational pull", "chemical force" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Mendeleev organized what basic units into rows and columns? 1. elements 2. compounds 3. solutions 4. animals
null
null
null
null
[ "elements", "compounds", "solutions", "animals" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What do you call compounds that have covalent bonds? 1. ions 2. covalent compounds 3. valence compound 4. reflectivity compounds
null
null
null
null
[ "ions", "covalent compounds", "valence compound", "reflectivity compounds" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the term for magma that erupts onto earth's surface? 1. debris 2. steam 3. obsidian 4. lava
null
null
null
null
[ "debris", "steam", "obsidian", "lava" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What changes nitrogen gas from the atmosphere to nitrogen compounds that plants can absorb? 1. pathogens 2. bacteria 3. viruses 4. tumors
null
null
null
null
[ "pathogens", "bacteria", "viruses", "tumors" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: In vertebrates, ovipary, ovovivipary, and vivipary are different strategies for what vital process? 1. circulation 2. reproduction 3. absorption 4. respiration
null
null
null
null
[ "circulation", "reproduction", "absorption", "respiration" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What waves do radio and television use? 1. gamma waves 2. radio waves 3. sound waves 4. light waves
null
null
null
null
[ "gamma waves", "radio waves", "sound waves", "light waves" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Which factor causes a cannon ball to move horizontally and then fall on the ground? 1. cone motion 2. projectile motion 3. downward motion 4. fluid motion
null
null
null
null
[ "cone motion", "projectile motion", "downward motion", "fluid motion" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What do electrons lose during their transfer from organic compounds to oxygen? 1. actual energy 2. thermal energy 3. potential energy 4. mechanical energy
null
null
null
null
[ "actual energy", "thermal energy", "potential energy", "mechanical energy" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What are plastids that contain other pigments? 1. chromoplasts 2. chloroplasts 3. cytoplasm 4. lucoplasts
null
null
null
null
[ "chromoplasts", "chloroplasts", "cytoplasm", "lucoplasts" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Each species of legume is associated with a strain of __________ 1. agrobacterium 2. fungi 3. heliotropium 4. rhizobium
null
null
null
null
[ "agrobacterium", "fungi", "heliotropium", "rhizobium" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Algae convert energy from the sun into food by means of what process? 1. glycolysis 2. luminosynthesis 3. compression 4. photosynthesis
null
null
null
null
[ "glycolysis", "luminosynthesis", "compression", "photosynthesis" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Which process helps provide cleaner water for agriculture? 1. process of desalinization 2. purification 3. osmosis 4. sterilization
null
null
null
null
[ "process of desalinization", "purification", "osmosis", "sterilization" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What element is an essential part of many molecules needed by living organisms? 1. helium 2. hydrogen 3. silicon 4. nitrogen
null
null
null
null
[ "helium", "hydrogen", "silicon", "nitrogen" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: An atom is the smallest unit of what that maintains the identity of the latter? 1. mixture 2. cell 3. element 4. organism
null
null
null
null
[ "mixture", "cell", "element", "organism" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: When a solution freezes, only what particles come together to form a solid phase, while the presence of solute particles interferes with that process? 1. hydrogen 2. solvent 3. diluent 4. pigment
null
null
null
null
[ "hydrogen", "solvent", "diluent", "pigment" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Liquefaction ccurs when the molecules of a gas are cooled to the point where they no longer possess sufficient kinetic energy to overcome what? 1. bonding attractive forces 2. gravitational attractive forces 3. intermolecular attractive forces 4. intermolecular gravitational forces
null
null
null
null
[ "bonding attractive forces", "gravitational attractive forces", "intermolecular attractive forces", "intermolecular gravitational forces" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the term for the series of life stages and events that a sexually reproducing organism goes through? 1. existence 2. life cycle 3. age 4. society cycle
null
null
null
null
[ "existence", "life cycle", "age", "society cycle" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is absorbed from food waste in the large intestine before it passes out of the body as feces? 1. inactive water 2. dependent water 3. excess water 4. distilled water
null
null
null
null
[ "inactive water", "dependent water", "excess water", "distilled water" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What do hydrocarbons consist of? 1. carbon and water 2. carbon and hydrogen 3. carbon and oxygen 4. carbon and helium
null
null
null
null
[ "carbon and water", "carbon and hydrogen", "carbon and oxygen", "carbon and helium" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: A major diversification of what animal group occurred about 50 million years ago, possibly spurred by worldwide climate change? 1. insects 2. amphibians 3. reptiles 4. mammals
null
null
null
null
[ "insects", "amphibians", "reptiles", "mammals" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Like a house, your body has what kind of mechanism that responds to changes in temperature? 1. mechanical thermostat 2. sensitive thermostat 3. internal thermostat 4. external thermostat
null
null
null
null
[ "mechanical thermostat", "sensitive thermostat", "internal thermostat", "external thermostat" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: An isometric type of what occurs as the muscle produces tension without changing the angle of a skeletal joint? 1. compression 2. contraction 3. acceleration 4. extension
null
null
null
null
[ "compression", "contraction", "acceleration", "extension" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What are important coenzymes or precursors of coenzymes, and are required for enzymes to function properly? 1. vitamins 2. supplements 3. carbohydrates 4. Drugs
null
null
null
null
[ "vitamins", "supplements", "carbohydrates", "Drugs" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What have cell-surface antigen receptors for foreign molecules? 1. dendrites 2. capillaries 3. erythrocytes 4. lymphocytes
null
null
null
null
[ "dendrites", "capillaries", "erythrocytes", "lymphocytes" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: In birds, modified front legs are actually what? 1. arms 2. claws 3. wings 4. tails
null
null
null
null
[ "arms", "claws", "wings", "tails" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: The number of waves that pass a fixed point in a given amount of time is called what? 1. frequency of a wave 2. wavelength of a wave 3. spread of a wave 4. spectroscopy of a wave
null
null
null
null
[ "frequency of a wave", "wavelength of a wave", "spread of a wave", "spectroscopy of a wave" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: How does litmus paper indicate the ph value of a solution? 1. by texture 2. by color 3. by smell 4. by shape
null
null
null
null
[ "by texture", "by color", "by smell", "by shape" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is another term for movable joints? 1. synovial 2. interstitial 3. fibrous 4. sesamoidal
null
null
null
null
[ "synovial", "interstitial", "fibrous", "sesamoidal" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What device is a magnetic disc that provides long-term storage for programs and data? 1. floppy drive 2. cassette 3. hard drive 4. software
null
null
null
null
[ "floppy drive", "cassette", "hard drive", "software" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Debroglie proposed in 1924 that any object exhibits a wavelength that is inversely proportional to its? 1. momentum 2. velocity 3. frequency 4. inertia
null
null
null
null
[ "momentum", "velocity", "frequency", "inertia" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What travels at the interface between the sea surface and the atmosphere? 1. ocean tides 2. ocean currents 3. ocean breeze 4. ocean waves
null
null
null
null
[ "ocean tides", "ocean currents", "ocean breeze", "ocean waves" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the only light that humans can see? 1. dark light 2. visible light 3. distinct light 4. bright light
null
null
null
null
[ "dark light", "visible light", "distinct light", "bright light" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What directs the amino acids to be introduced into the growing protein chain in the proper sequence? 1. gene template 2. organism template 3. organelle template 4. rna template
null
null
null
null
[ "gene template", "organism template", "organelle template", "rna template" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Cellular respiration in humans involves the combustion of what simple sugar? 1. glutamate 2. insulin 3. glucose 4. starch
null
null
null
null
[ "glutamate", "insulin", "glucose", "starch" ]
[ 1, 1, 10, 1 ]
null
null
null