question stringlengths 14 399 | choices listlengths 4 4 | answer stringclasses 4
values |
|---|---|---|
In a chemical reaction, the amounts of reactants and products will be constant when what state is attained? | [
"saturation",
"homogeneity",
"peak",
"equilibrium"
] | D |
What protects a developing flower while it is still a bud? | [
"lobes",
"shell",
"sepals",
"petals"
] | C |
What is the term for the force of attraction between things that have a mass? | [
"magnetism",
"motion",
"gravity",
"weight"
] | C |
What are the long, thin protein extensions in most prokaryotic cells called? | [
"cingulum",
"neutrons",
"flagellum",
"analyte"
] | C |
Dialysis is a treatment for failure of what organs? | [
"liver",
"kidneys",
"spleen",
"lungs"
] | B |
What preventive measure can protect even young children against diseases such as viral meningitis? | [
"vaccination",
"nutrition",
"surgical intervention",
"malnutrition"
] | A |
Renal plasma flow equals the blood flow per minute times the what? | [
"leukocytes",
"hemoglobin",
"erythrocytes",
"hematocrit"
] | D |
What does lattice energy of an ionic solid measure the strength of? | [
"atoms",
"electrons",
"metals",
"bonds"
] | D |
How many different types of taste can be detected by taste buds? | [
"hundreds",
"three",
"five",
"two"
] | C |
What species do humans belong to? | [
"homo sapiens",
"homo erectus",
"monkeys",
"hominids"
] | A |
Titration is a method to determine what in acids or bases? | [
"alkalinity",
"concentration",
"glucose",
"maturation"
] | B |
How many different amino acids make up proteins. | [
"30",
"25",
"14",
"20"
] | D |
What are sores in the lining of the stomach or duodenum that are usually caused by bacterial infections or acidity? | [
"lesions",
"ulcers",
"hernia",
"clots"
] | B |
In some species, what has led to the evolution of alternative male mating behavior and morphology? | [
"similar selection",
"sexual process",
"distributive selection",
"sexual selection"
] | D |
What structure is made from dna and protein molecules coiled together? | [
"chromosome",
"bacterium",
"atoms",
"enzymes"
] | A |
What renewable energy source converts energy from the sunlight into electricity? | [
"geothermal energy",
"geophysical energy",
"solar energy",
"hydrostatic energy"
] | C |
The radial artery and which artery parallel their namesake bones, giving off smaller branches until they reach the wrist, or carpal region? | [
"humerus",
"biceps",
"ulnar",
"triceps"
] | C |
The bones of the skull are connected by what type of joints? | [
"immovable",
"adjustable",
"pivoting",
"semi-mobile"
] | A |
What is the lowest layer of the atmosphere? | [
"ionosphere",
"lithosphere",
"chromosphere",
"troposphere"
] | D |
What is the name of the type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate? | [
"bundle sheth cell",
"meristem",
"guard cell",
"cuticle"
] | B |
Phosphate-containing ocean sediments form primarily from the bodies of ocean organisms and from their what? | [
"skeletons",
"blood",
"excretions",
"ancestors"
] | C |
What does erosion do to pieces of broken rock? | [
"Smooth them",
"moves them",
"Cancel Them",
"lead them"
] | B |
The passing of traits from parents to offspring is done through what? | [
"blood",
"egg",
"dna",
"sperm"
] | C |
In a glass of sweet tea the sugar is known as the solute and the water is known as what? | [
"solvent",
"calcium",
"solid",
"pigment"
] | A |
A few earthquakes take place away from plate boundaries, these are called what? | [
"outer earthquakes",
"distant earthquakes",
"intraplate earthquakes",
"deformation earthquakes"
] | C |
Red litmus paper turns what color when placed in a basic solution? | [
"blue",
"white",
"pink",
"orange"
] | A |
The difference between the theoretical half-reaction reduction potential and the actual voltage required is called what? | [
"excess",
"resistance",
"overpotential",
"overcharge"
] | C |
While the egg is developing, other changes are taking place in the uterus. it develops a thick lining that is full of what? | [
"large arteries",
"amniotic fluid",
"tiny blood vessels",
"white blood cells"
] | C |
The neural plate undergoes a series of cell movements where it rolls up and forms a tube called what? | [
"cell tube",
"occular tube",
"peripheral tube",
"neural tube"
] | D |
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. | [
"catalytic",
"hydrophobic",
"hydrophylic",
"saturated"
] | B |
In what way do all vertebrates reproduce? | [
"mitosis",
"asexually",
"sexually",
"biologically"
] | C |
First, high temperature denatures proteins and does what to cells? | [
"exposes them",
"finds them",
"kills them",
"develops them"
] | C |
What term is used to describe a collection of molecules surrounded by a phospholipid bilayer that is capable of reproducing itself? | [
"atom",
"organism",
"cell",
"proteins"
] | C |
By allowing blood levels of a hormone to be regulated within a narrow range, feedback loops contribute to maintaining what state? | [
"hypothesis",
"hibernation",
"consciousness",
"homeostasis"
] | D |
Collagen fibers, elastic fibers, and reticular fibers comprise what type of tissue? | [
"intestine tissue",
"skin tissue",
"connective tissue",
"nucleus tissue"
] | C |
What the name of the disease where some of the alveoli of the lungs fill with fluid so they can no longer exchange gas? | [
"emphysema",
"lung cancer",
"leukemia",
"pneumonia"
] | D |
What occurs when groups from the same species stop mating because of something other than physical or geographic separation? | [
"sympatric speciation",
"extinction",
"complementary speciation",
"invasive speciation"
] | A |
What environment do animals with gills live in? | [
"air",
"underground",
"cold",
"water"
] | D |
What is the boiling and freezing point of water in celcius? | [
"100 degrees c and 32 degrees c",
"100 degrees c and 0 degrees c",
"212 degrees c and 32 degrees c",
"212 degrees c and 0 degrees c"
] | B |
What are living things that obtain glucose by eating self feeders called? | [
"heterotrophs",
"viruses",
"producers",
"chimeras"
] | A |
Virtually every task performed by living organisms requires this? | [
"mineral",
"solids",
"energy",
"metals"
] | C |
The binding of what helps eliminate antigens by phagocytosis and complement-mediated lysis | [
"proteins",
"amino acids",
"fats",
"antibodies"
] | D |
What muscles are used to pump water over the gills? | [
"muscles and pharynx",
"pharynx and tonsils",
"lungs and pharynx",
"jaws and pharynx"
] | D |
Compounds like sodium chloride form structures called what? | [
"crystals",
"ions",
"microorganisms",
"hydrocarbons"
] | A |
What are made of long chains consisting almost solely of carbon and hydrogen? | [
"lipids",
"enzymes",
"proteins",
"nucleic acids"
] | A |
When a series of measurements is precise but not what, the error is usually systematic? | [
"velocity",
"color",
"length",
"accurate"
] | D |
Inserting copies of normal genes into a patient with defective genes is known as? | [
"gene therapy",
"pattern therapy",
"chromosome treatment",
"cloning"
] | A |
What type of reproduction usually occur during times of environmental stress? | [
"internal reproduction",
"hysterical reproduction",
"asexual reproduction",
"sexual reproduction"
] | D |
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? | [
"heat and work",
"humidity and work",
"temperature and work",
"cold and energy"
] | A |
What science includes many fields of science related to our home planet? | [
"zoology",
"biology",
"meteorology",
"earth science"
] | D |
What are alloys that are mostly composed of mercury known as? | [
"compounds",
"halogens",
"amalgams",
"fillings"
] | C |
What are made from highly reflective metal that is applied to a curved or flat piece of glass? | [
"prisms",
"lenses",
"kaleidoscopes",
"mirrors"
] | D |
What do ranchers fear will happen if wolves return? | [
"vegetation predation",
"loss of environment",
"livestock predation",
"human predation"
] | C |
How many types of surface waves are there? | [
"six",
"two",
"over a hundred",
"three"
] | B |
What is the rigid layer that is found outside the cell membrane and surrounds the cell? | [
"cell wall",
"cell barrier",
"cell root",
"cell shield"
] | A |
Surface tension of alveolar fluid, which is mostly water, creates an inward pull of the tissue of what organ? | [
"lung",
"brain",
"spleen",
"heart"
] | A |
What type of tumor mostly does not cause serious problems and can be completely removed by surgery? | [
"toxic",
"malignant",
"benign",
"persistent"
] | C |
What supports and protects the soft organs of the body? | [
"Skin",
"skeleton",
"Muscle",
"skull"
] | B |
What celestial body is the earth’s main source of energy? | [
"ocean",
"sun",
"rivers",
"moon"
] | B |
What do you call the horizontal stems of a strawberry plant that run over the ground surface? | [
"root volunteers",
"sprouts",
"climbing vines",
"stolons"
] | D |
Glaciers are incredibly powerful agents of what? | [
"erosion",
"extinction",
"insulation",
"climate change"
] | A |
What type of pressure is the pressure exerted by gas particles in earth’s atmosphere as those particles collide with objects? | [
"vertical pressure",
"atmospheric pressure",
"adjacent pressure",
"adjacent pressure"
] | B |
What helps the plasma membrane keep its shape? | [
"cytoplasm",
"molecules of oxygen",
"molecules of cholesterol",
"molecules of carbohydrates"
] | C |
What type of reproduction only involves one parent? | [
"primitive",
"organic",
"asexual",
"binary"
] | C |
What is defined as a repeating series of events that include growth, dna synthesis, and cell division? | [
"photosynthesis",
"cell cycle",
"puberty",
"meiosis"
] | B |
How metalloids behave in chemical interactions with other elements depends mainly on the number of what, in the outer energy level of their atoms? | [
"electrons",
"positrons",
"protons",
"neutrons"
] | A |
What distinguishing characteristic of annelid anatomy shows specialization and adaptation? | [
"asymmetry",
"segmentation",
"compression",
"beautiful"
] | B |
The spermatids are transported from the testes to where? | [
"Duodenum",
"vas",
"abdominis",
"epididymis"
] | D |
How does water from roots reach the leaves? | [
"water - combining cells",
"water-phobic cells",
"water - raising cells",
"water-conducting cells"
] | D |
As a polycrystalline material solidifies, grains with irregular shapes form. the interfaces between grains constitute grain what? | [
"waves",
"obstacles",
"patterns",
"boundaries"
] | D |
Motors are the most common application of magnetic force on current-carrying wires. motors have loops of wire in this? | [
"electrical circuit",
"capacitors",
"magnetic field",
"spark plugs"
] | C |
What makes and stores pigments that give petals and fruit their orange and yellow colors? | [
"chromoplasts",
"pores",
"protozoa",
"sporozoans"
] | A |
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? | [
"boiling point",
"evaporating point",
"freezing point",
"burning point"
] | A |
When electrons return to a lower energy level, they emit the excess energy in the form of what? | [
"weight",
"electricity",
"energy",
"light"
] | D |
What is another term for nearsightedness? | [
"myopia",
"hypoxia",
"glaucoma",
"anemia"
] | A |
What are the areas located at fixed distances from the nucleus of the atom? | [
"energy levels",
"molar levels",
"atomic regions",
"orbit points"
] | A |
In which state of matter do particles take the shape of their container, but cannot expand to fill it? | [
"liquid",
"gas",
"mixture",
"chemical"
] | A |
Runoff is likely to cause more what if the land is bare? | [
"sediment",
"weathering",
"abrasion",
"erosion"
] | D |
Cations have what type of charge? | [
"neutral",
"constant",
"negative",
"positive"
] | D |
What organ is subdivided into ascending, descending, transverse and sigmoid parts? | [
"colon",
"lungs",
"heart",
"uterus"
] | A |
Ammonia, urea, and uric acid are examples of what kind of waste? | [
"nitrogenous",
"sulphurous",
"carbonous",
"oxygenous"
] | A |
What are variants of genes called? | [
"mutations",
"alleles",
"antigens",
"allergens"
] | B |
Mushrooms are an example of what type of organism, which includes beneficial and toxic specimens? | [
"bacteria",
"fungi",
"seeds",
"spores"
] | B |
Comparing what sequences provides clues to evolution and development? | [
"DNA",
"genes",
"organisms",
"genome"
] | D |
What is a measure of the average amount of energy of motion, or kinetic energy, a system contains called? | [
"temperature",
"size",
"variation",
"precipitation"
] | A |
What is the minimum mass capable of supporting sustained fission called? | [
"particular mass",
"concentrated mass",
"critical mass",
"baseline mass"
] | C |
Many hydrocarbons are cyclic and adopt specific three-dimensional structures that influence their physical and what properties? | [
"chemical",
"radiation",
"liquid",
"electrical"
] | A |
The secondary wall contains _________ , a secondary cell component in plant cells that have completed cell growth/expansion. | [
"cellulose",
"lignin",
"cytoplasm",
"glucogen"
] | B |
What does the cell cycle do? | [
"only divide cells",
"divide and reproduce cells",
"only reproduce cells",
"create new cells"
] | B |
Inside the nasal area of the skull, the nasal cavity is divided into halves by the what? | [
"cell wall",
"nasal septum",
"cerebral cortex",
"cytoplasm"
] | B |
Bacteria can be chemotrophs, which obtain what by breaking down chemical compounds in their environment? | [
"energy",
"chemials",
"food",
"waste"
] | A |
Habitat loss, introduced species, overharvesting, and global change are major threats to what? | [
"biodiversity",
"transportation",
"the earth's gravity",
"the sun"
] | A |
What "plumbing" structures inside the veins maintain a unidirectional flow of blood despite the low blood pressure? | [
"tubes",
"pumps",
"valves",
"funnels"
] | C |
What do we call the cartilaginous structure that surrounds the notochrod? | [
"osteocytes",
"clavicle",
"membrane",
"arcualia"
] | D |
What is the process of the transfer of pollen from an anther to a stigma in angiosperms called? | [
"evolution",
"wind",
"pollination",
"grabation"
] | C |
Despite its small size, an erythrocyte contains about 250 million molecules of what? | [
"plasma",
"hemoglobin",
"potassium",
"calcium"
] | B |
How many variables are used to describe the condition of a gas? | [
"four",
"three",
"five",
"one"
] | A |
What is a suggested explanation for a phenomenon or a suggested explanation for a relationship between many phenomena called? | [
"system",
"query",
"hypothesis",
"process"
] | C |
Land plants are classified into two major groups according to the absence or presence of what tissue? | [
"root",
"bacterial",
"vascular",
"disease"
] | C |
What type of treatment is necessary for anaphylaxis? | [
"emergency",
"intensive care",
"allergy shot",
"outpatient"
] | A |
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