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: What substance flows over the land from precipitation or melting snow or ice? 1. nitrogen 2. water 3. air 4. lava
null
null
null
null
[ "nitrogen", "water", "air", "lava" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Most turtle bodies are covered by a special bony or cartilaginous shell developed from their what? 1. spines 2. tails 3. ribs 4. fins
null
null
null
null
[ "spines", "tails", "ribs", "fins" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What device uses an electromagnet to change electrical energy to kinetic energy? 1. electric motor 2. public motor 3. Magnetic motor. 4. melodic motor
null
null
null
null
[ "electric motor", "public motor", "Magnetic motor.", "melodic motor" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What causes the particles of medium to move parallel to the direction of the wave? 1. Sound waves. 2. fluid waves 3. longitudinal waves 4. mechanical waves
null
null
null
null
[ "Sound waves.", "fluid waves", "longitudinal waves", "mechanical waves" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Which state of matter lacks a fixed volume, fixed shape, and consists of charged particles? 1. ions 2. isotopes 3. atoms 4. electrons
null
null
null
null
[ "ions", "isotopes", "atoms", "electrons" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What type of cell transmits electrical impulses in the nervous system? 1. Large Cell 2. toxin cell 3. trace cell 4. nerve cell
null
null
null
null
[ "Large Cell", "toxin cell", "trace cell", "nerve cell" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the force pushing a rocket called? 1. direction 2. momentum 3. thrust 4. friction
null
null
null
null
[ "direction", "momentum", "thrust", "friction" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: In headwater streams, what plant process is mostly attributed to algae that are growing on rocks? 1. symbiosis 2. photosynthesis 3. mitosis 4. reproduction
null
null
null
null
[ "symbiosis", "photosynthesis", "mitosis", "reproduction" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the term that refers to stored chemical energy in organic matter or wastes? 1. nuclear energy 2. biomass energy 3. potential energy 4. starch energy
null
null
null
null
[ "nuclear energy", "biomass energy", "potential energy", "starch energy" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: The process of photosynthesis ultimately gets powered by what kind of energy? 1. electricity 2. nonrenewable energy 3. light 4. biofuel
null
null
null
null
[ "electricity", "nonrenewable energy", "light", "biofuel" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: A binary molecular compound is a molecular compound that is composed of what? 1. two atoms 2. four atoms 3. two elements 4. four elements
null
null
null
null
[ "two atoms", "four atoms", "two elements", "four elements" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Within the first 8 weeks of gestation, a developing embryo establishes the rudimentary structures of all of its organs and tissues from the ectoderm, mesoderm, and endoderm. this process is called what? 1. abiogenesis 2. organogenesis 3. parthenogenesis 4. biosynthesis
null
null
null
null
[ "abiogenesis", "organogenesis", "parthenogenesis", "biosynthesis" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What goes through different larval stages? 1. sponges 2. crustaceans 3. octopuses 4. plants
null
null
null
null
[ "sponges", "crustaceans", "octopuses", "plants" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the major cause of chronic respiratory disease as well as cardiovascular disease and cancer? 1. drinking 2. diet 3. smoking 4. exercise
null
null
null
null
[ "drinking", "diet", "smoking", "exercise" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Monotremes, marsupials, and placental mammals are subclasses of what? 1. birds 2. amphibians 3. reptiles 4. mammals
null
null
null
null
[ "birds", "amphibians", "reptiles", "mammals" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What type of mammal gives birth to young that need to develop further in the mother's pouch after birth? 1. marsupials 2. whales 3. aborigines 4. humans
null
null
null
null
[ "marsupials", "whales", "aborigines", "humans" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the measure of how closely molecules are packed together? 1. volume 2. density 3. frequency 4. length
null
null
null
null
[ "volume", "density", "frequency", "length" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the leading cause of lung cancer? 1. tuberculosis 2. tobacco smoke 3. chewing tobacco 4. heredity
null
null
null
null
[ "tuberculosis", "tobacco smoke", "chewing tobacco", "heredity" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: The golgi removes some sugar monomers and substitutes others, producing a large variety of what? 1. carbohydrates 2. proteins 3. electrolytes 4. fats
null
null
null
null
[ "carbohydrates", "proteins", "electrolytes", "fats" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Parenchymal, collenchymal, and sclerenchymal cells are associated with what types of living things? 1. plants 2. fungi 3. primates 4. parasites
null
null
null
null
[ "plants", "fungi", "primates", "parasites" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the name of the location in which a stream or river starts? 1. spring 2. source 3. shore 4. mouth
null
null
null
null
[ "spring", "source", "shore", "mouth" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What disease occurs when cells in the breast grow out of control and form a tumor? 1. muscular cyst 2. breast cancer 3. muscle cancer 4. adult breast growth
null
null
null
null
[ "muscular cyst", "breast cancer", "muscle cancer", "adult breast growth" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What process refers to the changes that occur in populations of living organisms over time? 1. evolution 2. spontaneous mutation 3. variation 4. adaptation
null
null
null
null
[ "evolution", "spontaneous mutation", "variation", "adaptation" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Alkenes can react with what to form alcohols? 1. air 2. sugars 3. proteins 4. water
null
null
null
null
[ "air", "sugars", "proteins", "water" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Wind blown sand contributes to what type of erosion? 1. vegetation 2. filtration 3. abrasion 4. sedimentary
null
null
null
null
[ "vegetation", "filtration", "abrasion", "sedimentary" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Bases are ionic compounds consisting of hydroxide ions and a what? 1. carbonate 2. cation 3. cinion 4. sulfate
null
null
null
null
[ "carbonate", "cation", "cinion", "sulfate" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What causes the menstrual cycle to be repeated? 1. uteris 2. lack of fertilization 3. ovaries 4. gravity
null
null
null
null
[ "uteris", "lack of fertilization", "ovaries", "gravity" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What happens when turgid cells in a nonwoody tissue push against each other? 1. the tissue melts 2. the tissue stiffens 3. the tissue dies 4. the tissues merge
null
null
null
null
[ "the tissue melts", "the tissue stiffens", "the tissue dies", "the tissues merge" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the waxy substance that epidermal cells secrete? 1. saliva 2. cellulose 3. bile 4. cuticle
null
null
null
null
[ "saliva", "cellulose", "bile", "cuticle" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the length of the route between two points? 1. distance 2. speed 3. direction 4. velocity
null
null
null
null
[ "distance", "speed", "direction", "velocity" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: According to the first law of thermodynamics, what can neither be created nor destroyed? 1. energy 2. light 3. fuel 4. food
null
null
null
null
[ "energy", "light", "fuel", "food" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What are the three primary pigment colors? 1. green, orange, purple 2. red, green, blue 3. red, white, blue 4. cyan, yellow, magenta
null
null
null
null
[ "green, orange, purple", "red, green, blue", "red, white, blue", "cyan, yellow, magenta" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: How do organophostbate pesticides work? 1. inhibiting testosterone 2. inhibiting cryptosporidium 3. inhibiting reticulum 4. inhibiting acetylcholinesterase
null
null
null
null
[ "inhibiting testosterone", "inhibiting cryptosporidium", "inhibiting reticulum", "inhibiting acetylcholinesterase" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: In the case of a light bulb, electricity is converted to light and what kind of energy? 1. thermal 2. chemical 3. nuclear 4. abstract
null
null
null
null
[ "thermal", "chemical", "nuclear", "abstract" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Where in relation to the home, are levels of vocs found to be higher? 1. in Fields 2. outdoors 3. On slopes 4. indoors
null
null
null
null
[ "in Fields", "outdoors", "On slopes", "indoors" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Density and pressure of air decreases with what? 1. temperature 2. humidity 3. altitude 4. horizontal distance
null
null
null
null
[ "temperature", "humidity", "altitude", "horizontal distance" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Energy is absorbed in the process of converting a liquid at its boiling point into a what? 1. plasma 2. solid 3. gas 4. mesh
null
null
null
null
[ "plasma", "solid", "gas", "mesh" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Images in what type of mirror are reversed left and right but not reversed top and bottom? 1. convex 2. virtual 3. concave 4. plane mirror
null
null
null
null
[ "convex", "virtual", "concave", "plane mirror" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What do cells produce as they age? 1. carcinogens 2. oxidants 3. proto-oncogenes 4. wrinkles
null
null
null
null
[ "carcinogens", "oxidants", "proto-oncogenes", "wrinkles" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: The body of the simplest sponges takes the shape of a cylinder with a large central cavity, called? 1. spongocoel 2. spicule 3. spirogyra 4. vacuole
null
null
null
null
[ "spongocoel", "spicule", "spirogyra", "vacuole" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Laid on dry land by reptiles, amniotic eggs have what that prevents them from drying out? 1. double shells 2. oil coating 3. double yolks 4. waterproof membranes
null
null
null
null
[ "double shells", "oil coating", "double yolks", "waterproof membranes" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What three rs represent the steps that you personally can take to conserve our natural resources and minimize waste? 1. reduce, reuse, recycle 2. remove, reduce, reuse 3. rinse, reuse, recycle 4. reduce, reuse, re-educate
null
null
null
null
[ "reduce, reuse, recycle", "remove, reduce, reuse", "rinse, reuse, recycle", "reduce, reuse, re-educate" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the process that allows organisms with better traits to survive and produce? 1. succession 2. adaptation 3. spontaneous mutation 4. natural selection
null
null
null
null
[ "succession", "adaptation", "spontaneous mutation", "natural selection" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the term for a substance that increases the rate of a chemical reaction but is not changed or used up in the reaction? 1. a catalyst 2. a mechanism 3. a contribute 4. an acid
null
null
null
null
[ "a catalyst", "a mechanism", "a contribute", "an acid" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What type of compounds can form crystals? 1. magnetic compounds 2. molecular compounds 3. integral compounds 4. ionic compounds
null
null
null
null
[ "magnetic compounds", "molecular compounds", "integral compounds", "ionic compounds" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: In grazing, a predator partially eats but does not kill what? 1. predators 2. time 3. prey 4. pack
null
null
null
null
[ "predators", "time", "prey", "pack" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Bone tissues include compact bone, spongy bone, bone marrow, and? 1. esophagus 2. epithelium 3. periosteum 4. cartilage
null
null
null
null
[ "esophagus", "epithelium", "periosteum", "cartilage" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What type of bacteria causes the disease called tuberculosis? 1. staphylococcus 2. E. coli 3. mycobacterium 4. streptococcus
null
null
null
null
[ "staphylococcus", "E. coli", "mycobacterium", "streptococcus" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Studies have shown that not only does reproduction have a cost as far as how long male fruit flies live, but also fruit flies that have already mated several times have limited amounts of this? 1. chromosomes 2. sperm 3. dna 4. eggs
null
null
null
null
[ "chromosomes", "sperm", "dna", "eggs" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What are the two most common causes of diseases? 1. nutritional deficiencies 2. bacteria and protazoa 3. bacteria and viruses 4. viruses and protazoa
null
null
null
null
[ "nutritional deficiencies", "bacteria and protazoa", "bacteria and viruses", "viruses and protazoa" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Organic compounds are defined as covalently bonded compounds containing carbon, excluding carbonates and what else? 1. acids 2. oxides 3. gases 4. crystals
null
null
null
null
[ "acids", "oxides", "gases", "crystals" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What drives the turbine in a thermonuclear reactor? 1. heated oil 2. magnets 3. heated water or steam 4. wind energy
null
null
null
null
[ "heated oil", "magnets", "heated water or steam", "wind energy" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the term for physicians and scientists who research and develop vaccines and treat and study conditions ranging from allergies to aids? 1. vaccinologists 2. endocrinologists 3. immunologists 4. virologists
null
null
null
null
[ "vaccinologists", "endocrinologists", "immunologists", "virologists" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Where are temperatures the lowest? 1. at the equator 2. over the oceans 3. at the poles 4. in asia
null
null
null
null
[ "at the equator", "over the oceans", "at the poles", "in asia" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Protecting the surface of metal prevents what? 1. evaporation 2. diffusion 3. corrosion 4. extraction
null
null
null
null
[ "evaporation", "diffusion", "corrosion", "extraction" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What type of tissues are major barriers to the entry of pathogens into the body? 1. nasal 2. vascular 3. skin 4. mucosal
null
null
null
null
[ "nasal", "vascular", "skin", "mucosal" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Trash that gets into fresh and saltwater waterways is called what type of debris? 1. water 2. pollution 3. ocean 4. aquatic
null
null
null
null
[ "water", "pollution", "ocean", "aquatic" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the term for genes that control the expression of other genes within specific regions of cells in the developing organism? 1. data genes 2. age genes 3. gap genes 4. expression genes
null
null
null
null
[ "data genes", "age genes", "gap genes", "expression genes" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: In vertebrates, what tissue is a type of connective tissue that supports the entire body structure? 1. collagen 2. blood 3. cartilage 4. bone
null
null
null
null
[ "collagen", "blood", "cartilage", "bone" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Red blood cells don't have a nucleus. this allows them to do what? 1. move faster 2. heal faster 3. be redder 4. carry more oxygen
null
null
null
null
[ "move faster", "heal faster", "be redder", "carry more oxygen" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: The number of electron pairs that hold two atoms together is called? 1. proton order 2. electron order 3. nuclear order 4. bond order
null
null
null
null
[ "proton order", "electron order", "nuclear order", "bond order" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What occurs when the immune system makes an inflammatory response to a harmless antigen? 1. allergies 2. asthma attack 3. antibodies 4. immunity
null
null
null
null
[ "allergies", "asthma attack", "antibodies", "immunity" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What energy source, now making a comeback, has helped propel ships and pump water for many years? 1. weather energy 2. solar energy 3. geothermal energy 4. wind energy
null
null
null
null
[ "weather energy", "solar energy", "geothermal energy", "wind energy" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What is it called when the nucleus of an atom splits into two smaller nuclei? 1. cell division 2. complex fission 3. nuclear fission 4. nuclear fusion
null
null
null
null
[ "cell division", "complex fission", "nuclear fission", "nuclear fusion" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: The curie (ci) is one measure of the rate of what? 1. division 2. decay 3. growth 4. spin
null
null
null
null
[ "division", "decay", "growth", "spin" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: A unique type of organism is also known as what? 1. species 2. taxonomy 3. parasites 4. element
null
null
null
null
[ "species", "taxonomy", "parasites", "element" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Snakes use what anatomical structure to smell scents in the air? 1. forked tails 2. forked eyes 3. forked tongue 4. branched tongue
null
null
null
null
[ "forked tails", "forked eyes", "forked tongue", "branched tongue" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What chemical element helps forms strong bones and teeth in humans? 1. calcium 2. magnesium 3. potassium 4. iron
null
null
null
null
[ "calcium", "magnesium", "potassium", "iron" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: The limit to how much solute will dissolve in a given amount of solvent is called what? 1. density 2. potency 3. strength 4. solubility
null
null
null
null
[ "density", "potency", "strength", "solubility" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What occurs when hot magma transforms rock that it contacts? 1. contact metamorphism 2. changing metamorphism 3. form metamorphism 4. existence metamorphism
null
null
null
null
[ "contact metamorphism", "changing metamorphism", "form metamorphism", "existence metamorphism" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What term refers to entities, events or powers regarded as being beyond nature, and cannot be explained by scientific means? 1. supernatural 2. hypothetical 3. fictional 4. natural
null
null
null
null
[ "supernatural", "hypothetical", "fictional", "natural" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What causes an elastic force in springs? 1. velocity 2. momentum 3. freezing 4. stretching or compressing
null
null
null
null
[ "velocity", "momentum", "freezing", "stretching or compressing" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What effect is responsible for flight paths looking curved? 1. tonal effect 2. volumetric effect 3. coriolis effect 4. resonant effect
null
null
null
null
[ "tonal effect", "volumetric effect", "coriolis effect", "resonant effect" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Wetlands are environments in which the soil is either permanently or periodically saturated with what? 1. oil 2. spores 3. water 4. hydrogen
null
null
null
null
[ "oil", "spores", "water", "hydrogen" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: When the ground absorbs the water and it settles below the surface it is called what? 1. groundwater 2. wastewater 3. precipitation 4. glacier
null
null
null
null
[ "groundwater", "wastewater", "precipitation", "glacier" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Some metabolic pathways release what by breaking down complex molecules to simpler compounds? 1. water 2. energy 3. fat 4. hydrogen
null
null
null
null
[ "water", "energy", "fat", "hydrogen" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the smallest portion of a crystal lattice? 1. function cell 2. ionic cell 3. element cell 4. unit cell
null
null
null
null
[ "function cell", "ionic cell", "element cell", "unit cell" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What is one major cause of skin cancer? 1. infrared light 2. ultraviolet light 3. visible light 4. sunscreen
null
null
null
null
[ "infrared light", "ultraviolet light", "visible light", "sunscreen" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Which important decomposers are known to live just about anywhere on earth? 1. viruses 2. protazoas 3. sporozoans 4. archeans
null
null
null
null
[ "viruses", "protazoas", "sporozoans", "archeans" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: In the scientific method, what is the initial, unproven explanation for why something is occurring? 1. idea 2. hypothesis 3. concepts 4. theories
null
null
null
null
[ "idea", "hypothesis", "concepts", "theories" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the name of an element with a different number of neutrons? 1. mineral 2. reaction 3. solution 4. isotope
null
null
null
null
[ "mineral", "reaction", "solution", "isotope" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Nitrogen and sulfur oxides form what type of rain? 1. common rain 2. heavy rain 3. toxic rain 4. acid rain
null
null
null
null
[ "common rain", "heavy rain", "toxic rain", "acid rain" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: Polyester fabric's resistance to wrinkling comes from the cross-linking of what? 1. velocity strands 2. wool strands 3. algae strands 4. polymer strands
null
null
null
null
[ "velocity strands", "wool strands", "algae strands", "polymer strands" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: What term refers to the sequence of community and ecosystem changes after a disturbance? 1. disturbance succession 2. physiological succession 3. ecological succession 4. progressions
null
null
null
null
[ "disturbance succession", "physiological succession", "ecological succession", "progressions" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the network of fibers that organizes structures and activities in the cell called? 1. cytoskeleton 2. enzymes 3. DNA 4. cytoplasm
null
null
null
null
[ "cytoskeleton", "enzymes", "DNA", "cytoplasm" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Decreasing the volume of a gas and keeping everything else the same will cause its pressure to change in what way? 1. increase 2. heat up 3. decrease 4. lower
null
null
null
null
[ "increase", "heat up", "decrease", "lower" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What evolutionary strategy enables substantial activity during sleep for some animals? 1. mutation 2. hibernation 3. reproduction 4. adaptation
null
null
null
null
[ "mutation", "hibernation", "reproduction", "adaptation" ]
[ 1, 1, 1, 10 ]
null
null
null
null
Which of the following is the correct answer to the question: The cells of the blastocyst form an inner cell mass called the what? 1. embryoblast 2. xerophyte 3. blastocyst 4. chloroplast
null
null
null
null
[ "embryoblast", "xerophyte", "blastocyst", "chloroplast" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: How do all musical instruments create sound? 1. stimulation 2. conduction 3. vibration 4. condensation
null
null
null
null
[ "stimulation", "conduction", "vibration", "condensation" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What system disorders include kidney stones, kidney failure, and urinary tract infections? 1. renal system 2. urinary system 3. digestive system 4. nervous system
null
null
null
null
[ "renal system", "urinary system", "digestive system", "nervous system" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What type of respiration has the advantage of releasing more energy? 1. anaerobic 2. elastic 3. aerobic 4. kinetic
null
null
null
null
[ "anaerobic", "elastic", "aerobic", "kinetic" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Major climate types are based on what two things? 1. oxygen & precipitation 2. topography & temperature 3. temperature & precipitation 4. environment & precipitation
null
null
null
null
[ "oxygen & precipitation", "topography & temperature", "temperature & precipitation", "environment & precipitation" ]
[ 1, 1, 10, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: When amino acids bind together, they form a long chain called what, which is an essential component of protein? 1. polypeptide 2. peptide 3. lipids 4. enzyme
null
null
null
null
[ "polypeptide", "peptide", "lipids", "enzyme" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What type of cells does meiosis produce? 1. mutated cells 2. haploid daughter cells 3. diploid daughter cells 4. child cells
null
null
null
null
[ "mutated cells", "haploid daughter cells", "diploid daughter cells", "child cells" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: Organisms that lack both a nucleus and membrane-bound organelles are known as what, in general? 1. barren 2. prokaryotic 3. trophic 4. photosynthetic
null
null
null
null
[ "barren", "prokaryotic", "trophic", "photosynthetic" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What happens to most of the energy in a trophic level as it passes to the next higher level? 1. it is lost 2. it increases 3. it is transferred 4. it stays the same
null
null
null
null
[ "it is lost", "it increases", "it is transferred", "it stays the same" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is the name for a specific amount of solute that can dissolve in a given amount of solvent? 1. viscosity 2. solubility 3. humidity 4. concentration
null
null
null
null
[ "viscosity", "solubility", "humidity", "concentration" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What is freshwater below the earth's surface called? 1. groundwater 2. geyser 3. sediment 4. precipitation
null
null
null
null
[ "groundwater", "geyser", "sediment", "precipitation" ]
[ 10, 1, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What forms when crystals precipitate out from a liquid? 1. liquid sedimentary rocks 2. chemical sedimentary rocks 3. plasma sedimentary rocks 4. plants sedimentary rocks
null
null
null
null
[ "liquid sedimentary rocks", "chemical sedimentary rocks", "plasma sedimentary rocks", "plants sedimentary rocks" ]
[ 1, 10, 1, 1 ]
null
null
null
null
Which of the following is the correct answer to the question: What do people build to protect areas from floods? 1. drains 2. reinforced walls 3. dams 4. sewers
null
null
null
null
[ "drains", "reinforced walls", "dams", "sewers" ]
[ 1, 1, 10, 1 ]
null
null
null