subject
float64
question
stringlengths
78
512
answer
stringclasses
4 values
null
Question: What is the scale on which acidity is measured? Options: A. ph B. μm C. μg D. hp Answer:
A
null
Question: What vesicles store neurotransmitters? Options: A. synaptic B. hydrophobic C. dendritic D. Golgi apparatus Answer:
A
null
Question: What are surrounded by a cell wall consisting of peptidoglycan? Options: A. viruses B. amoeba C. protozoa D. bacteria Answer:
D
null
Question: Where does the most important monsoon in the world occur? Options: A. southern asia B. the atlantic ocean C. northern africa D. eastern aisa Answer:
A
null
Question: What is the term for a substance that causes the speed of a reaction to increase? Options: A. indicate B. component C. monite D. catalyst Answer:
D
null
Question: What do body cells use for energy? Options: A. solvents B. mixtures C. sugars D. chlorophyll Answer:
C
null
Question: What organism is characterized by an incomplete digestive system and a single, tentacled opening? Options: A. prokaryotes B. sponges C. annelids D. cnidarians Answer:
D
null
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? Options: A. biome B. habitat C. community D. biosphere Answer:
D
null
Question: Some metabolic pathways release what by breaking down complex molecules to simpler compounds? Options: A. fat B. energy C. hydrogen D. water Answer:
B
null
Question: In the cardiovascular system, what blood vessels carry blood away from the heart? Options: A. veins B. arteries C. capillaries D. cilia Answer:
B
null
Question: What do ferns use in place of seeds to reproduce? Options: A. glands B. spores C. atoms D. toxins Answer:
B
null
Question: What is it called when bones get longer and bigger? Options: A. replication B. expansion C. growth D. reproduction Answer:
C
null
Question: What two states of matter are included in the category "fluids"? Options: A. liquids and soilds B. liquids and gases C. solids and gases D. bacteria and gases Answer:
B
null
Question: The cells in the follicle undergo physical changes and produce a structure called a what? Options: A. secondary ovum B. liberated ovum C. primordial follicle D. corpus luteum Answer:
D
null
Question: What are magnesium carbonate, aluminum hydroxide, and sodium bicarbonate commonly used as? Options: A. antibiotics B. antidepressants C. salts D. antacids Answer:
D
null
Question: What organ system consists of the skin, nails and hair? Options: A. integumentary system B. digestive system C. endocrine system D. nervous system Answer:
A
null
Question: Friction does negative work and removes some of the energy the person expends and converts it to which kind of energy? Options: A. evaporation B. thermal C. hydro D. erosion Answer:
B
null
Question: What is a form of mechanical energy that starts with a vibration in matter? Options: A. sound energy B. electrical energy C. solar energy D. industrial energy Answer:
A
null
Question: What is the term for a combination of substances in which there is no chemical reaction? Options: A. a solution B. a combination C. a mixture D. a solute Answer:
C
null
Question: The ostrich, kiwi, rhea, cassowary, and moa are examples of what kind of birds? Options: A. predators B. prehistoric C. raptors D. flightless Answer:
D
null
Question: Urea and carbon dioxide are molecules with how many carbon atoms? Options: A. four B. even number C. two D. one Answer:
D
null
Question: "red-shift" refers to a shift toward red in the spectrum from what celestial bodies? Options: A. galaxies B. planets C. stars D. comets Answer:
C
null
Question: Name the fibrous joint in which two parallel bones are united to each other by fibrous connective tissue. Options: A. gomphosis B. syndesmosis C. cartilage D. suture Answer:
B
null
Question: How many set of chromosomes do moss have? Options: A. double set B. single set C. triple set D. none Answer:
B
null
Question: Snippet 3: the diploid cells resulting from karyogamy are short-lived and undergo meiosis, producing what? Options: A. binary spores B. hyperactive spores C. stunted spores D. haploid spores Answer:
D
null
Question: What happens to structural genes in the presence of tryptophan? Options: A. they are not oxidised B. they are exterminated​ C. they are transcribed D. they are not transcribed Answer:
D
null
Question: What process is magnesium important to? Options: A. carbon cycle B. absorption C. photosynthetic D. dna replication Answer:
C
null
Question: Making a specific prediction based on a general principle is known as what type of reasoning? Options: A. validating reasoning B. common sense reasoning C. deductive reasoning D. logical reasoning Answer:
C
null
Question: Birds are thought to have evolved around 150 million years ago from what? Options: A. raptor dinosaurs B. theropod dinosaurs C. parrot dinosaurs D. teradactils Answer:
B
null
Question: What kind of cells are polyribosomes found in? Options: A. yeast and prokaryotic B. Prokaryotic and eukaryotic C. bacterial and eukaryotic D. chloroplasts and nuclei Answer:
C
null
Question: The leaf chameleon (brookesia micra) was discovered in northern madagascar in 2012. at just over one inch long, it is what? Options: A. smallest known chameleon B. first known chameleon C. largest chameleon D. hottest known chameleon Answer:
A
null
Question: Global warming will raise ocean levels due to melt water from glaciers and the greater volume of what? Options: A. greenhouse gases B. rain C. rainforests D. warmer water Answer:
D
null
Question: Stringed instruments can help show the relationship between tension and what in strings? Options: A. temperatures B. lengths C. frequencies D. volumes Answer:
C
null
Question: Different feeding "positions" in a food chain or web are associated with what kinds of levels? Options: A. benthic B. trophic C. autotrophic D. heptic Answer:
B
null
Question: What is a purification process where the components of a liquid mixture are vaporized and then condensed and isolated? Options: A. dispersion B. sterilization C. distillation D. conduction Answer:
C
null
Question: What regulates the passage of blood into capillary beds? Options: A. bicellular sphincters B. cell membrane C. diocesan sphincters D. precapillary sphincters Answer:
D
null
Question: Species of organisms that have permanently died out can also be called what? Options: A. extinct B. succinct C. inherited D. occuring Answer:
A
null
Question: Unlike fibrous or cartilaginous joints, the articulating bone surfaces at what joint type are not directly connected to each other with fibrous connective tissue or cartilage? Options: A. knee joint B. proximal joint C. polymeric joint D. synovial joint Answer:
D
null
Question: What are unique about prokaryotic cells' organelles? Options: A. no epidermis B. only membrane - bound C. not membrane-bound D. no cell walls Answer:
C
null
Question: Olfaction refers to which of the five senses? Options: A. smell B. sight C. touch D. taste Answer:
A
null
Question: The secretion of what may influence the body’s circadian rhythms? Options: A. serotonin B. melatonin C. human growth hormone D. testosterone Answer:
B
null
Question: Fish hatch into larvae that are different from the adult form of? Options: A. species B. color C. parasites D. sex Answer:
A
null
Question: Through what does urine enter the bladder? Options: A. the vas deferens B. the enterocytes C. the ureters D. the tubules Answer:
C
null
Question: How many pairs of chromosomes are there? Options: A. 25 B. 23 C. 16 D. 24 Answer:
B
null
Question: When magma heats groundwater, it may come to the surface as a hot spring or a what? Options: A. volcano B. pond C. geyser D. cave Answer:
C
null
Question: Genes are organized to make the control of gene expression easier. the promoter region is immediately upstream of this? Options: A. propagate sequence B. organic sequence C. coding sequence D. signalling sequence Answer:
C
null
Question: What is the change frogs and butterflies go through? Options: A. hiatus B. metamorphosis C. transformation D. parthenogenesis Answer:
B
null
Question: All planets exhibit the same or nearly the same direction and shape of what path around the sun? Options: A. revolution B. ellipse C. nucleus D. orbit Answer:
D
null
Question: Cellular respiration and photosynthesis are important parts of which cycle? Options: A. carbon cycle B. greenhouse effect C. vapor cycle D. water cycle Answer:
A
null
Question: What is a soft, malleable, and corrosion resistant material called? Options: A. gold B. copper C. lead D. tin Answer:
C
null
Question: Which planet is named after the roman goddess of love? Options: A. venus B. Jupiter C. Neptune D. Mercury Answer:
A
null
Question: What is it called when body’s internal environment is stable? Options: A. hypothesis B. homeostasis C. ketosis D. synchronicity Answer:
B
null
Question: What keeps the moon orbiting earth? Options: A. axial tilt B. the Sun C. Coriolis effect D. gravity Answer:
D
null
Question: What is moving air called? Options: A. wind B. clouds C. humidity D. steam Answer:
A
null
Question: Birds are known for flying south in the winter to avoid what? Options: A. solar radiation B. rain C. cold weather D. hurricanes Answer:
C
null
Question: Ionic bonds are electrostatic attractions between two oppositely charged what? Options: A. compounds B. molecules C. ions D. gasses Answer:
C
null
Question: What method uses a retailer's coding method to catalog biological specimens in museums? Options: A. content barcoding B. dna barcoding C. metallic barcoding D. structure barcoding Answer:
B
null
Question: A long chain of mountains that rises up high above the deep seafloor is called? Options: A. oceanic alps B. mid-ocean ridges C. blue ridge mountains D. sea mounds Answer:
B
null
Question: What do metals start out as? Options: A. ore B. Metal molecules C. nickel D. aluminum Answer:
A
null
Question: Layers of fat are formed by what type of tissue? Options: A. areolar tissue B. trypanosome tissue C. adipose tissue D. colchis tissue Answer:
C
null
Question: Which hormone is secreted by the pancreas in a human body? Options: A. insulin B. progesterone C. growth hormone D. estrogen Answer:
A
null
Question: What are the largest known proteins? Options: A. keratins B. titins C. hormones D. actins Answer:
B
null
Question: Which division of the peripheral nervous system interprets signals, while the motor division sends signals? Options: A. kinetic B. olfactory C. sensory D. automatic Answer:
C
null
Question: What type of role does cartilage play in the human skeleton? Options: A. variable B. important C. insignificant D. life saving Answer:
C
null
Question: What is another word for brooding- keeping eggs warm while the embryos develop? Options: A. incubation B. fertilization C. spawning D. hibernation Answer:
A
null
Question: What do some animals grow to protect themselves in winter? Options: A. thin skin B. antennae C. thicker fur D. scales Answer:
C
null
Question: What is the phenotypic range of a particular genotype called? Options: A. diversity B. range of motion C. norm of reaction D. natural selection Answer:
C
null
Question: What are the only innate behaviors in humans? Options: A. inherited traits B. learned behaviors C. insight behaviors D. reflex behaviors Answer:
D
null
Question: Friction causes the molecules on rubbing surfaces to move faster, which produces what? Options: A. heat B. cold C. precipitation D. life Answer:
A
null
Question: What plays the same role in rotational motion that force plays in linear motion. Options: A. fulcrum B. efficiency C. frame D. torque Answer:
D
null
Question: What kind of reproduction results in offspring that are generally all genetically different? Options: A. individual B. perceptual C. sexual D. asexual Answer:
C
null
Question: What is the germ for a group of atoms within a molecule that reacts similarly anywhere it appears in different compounds? Options: A. atomic group B. molecular group C. thermal group D. functional group Answer:
D
null
Question: What do you call pure substances with unique properties? Options: A. structures B. arrangements C. originals D. elements Answer:
D
null
Question: When the body goes into survival mode, it's first priority is to produce enough of which substance for the brain? Options: A. blood B. insulin C. glucose D. plasma Answer:
C
null
Question: What is a winding ridge of sand deposited by a stream of meltwater called? Options: A. oasis B. sand dune C. esker D. desert Answer:
C
null
Question: What are the two major types of seed plants called? Options: A. flowers and fruits B. perennials and annuals C. gymnosperms and angiosperms D. deciduous and evergreen Answer:
C
null
Question: Diphenylamine acts as a stabilizer for certain types of what? Options: A. toxins B. proteins C. enzymes D. explosives Answer:
D
null
Question: Respiratory development in the embryo begins around week 4. ectodermal tissue from the anterior head region invaginates posteriorly to form olfactory pits, which fuse with endodermal tissue of the developing pharynx. an olfactory pit is one of a pair of structures that will enlarge to become this? Options: A. fluid cavity B. nasal cavity C. eye cavity D. anal cavity Answer:
B
null
Question: An endocrine disease usually involves the secretion of too much or not enough hormone by which gland? Options: A. Thyroid B. Pituitary C. Pancreas D. endocrine Answer:
D
null
Question: What gas, that is dissolved in solution, is used in carbonated beverages? Options: A. phosphorus dioxide B. hydrogen peroxide C. carbon monoxide D. carbon dioxide Answer:
D
null
Question: Plant cells have cell walls that are made of what? Options: A. tissue B. nucleus C. cellulose D. carbonate Answer:
C
null
Question: Which organ in the human body filters blood and excretes urine? Options: A. the kidney B. the thyroid C. the liver D. the bladder Answer:
A
null
Question: What are commonly used to control insect pests, but can have harmful effects on the environment? Options: A. fertilizers B. toxins C. Herbicides D. insecticides Answer:
D
null
Question: In multicellular organisms, mutations can be subdivided into germline mutations and? Options: A. comparative mutations B. resultant mutations C. elective mutations D. somatic mutations Answer:
D
null
Question: When do female reproductive organs mature? Options: A. at puberty B. at menopause C. periomenopause D. at birth Answer:
A
null
Question: What type of organisms do not need blood? Options: A. marine B. vertebrate C. cold-blooded D. single-celled Answer:
D
null
Question: A hydrostatic skeleton is a skeleton formed by a fluid-filled compartment within the body, called what? Options: A. coelom B. endosperm C. thallus D. clamon Answer:
A
null
Question: In police radar, a radar gun sends out short bursts of which waves? Options: A. electrodes B. soundwaves C. photons D. microwaves Answer:
D
null
Question: Matter is composed of exceedingly small particles called what? Options: A. ions B. atoms C. crystals D. cells Answer:
B
null
Question: What term is used to describe the tendency of a mineral to break along certain planes? Options: A. cleavage B. tooth decay C. erosion D. porosis Answer:
A
null
Question: What is the measure of the change in the velocity of a moving object called? Options: A. compression B. acceleration C. pressurization D. transmission Answer:
B
null
Question: Where are about 75% of the tar sands in the world located? Options: A. venezuela and onatrio,canada B. venezuela and alberta, canada C. china and onatrio, canada D. alberta, canada and peru Answer:
B
null
Question: What type of radio waves exist in the 540 to 1600 khz frequency range? Options: A. am radio waves B. sound waves C. microwaves D. fm radio waves Answer:
A
null
Question: In a chemical reaction, the amounts of reactants and products will be constant when what state is attained? Options: A. equilibrium B. saturation C. homogeneity D. peak Answer:
A
null
Question: What is located at about 80 degrees north latitude? Options: A. the equator B. india C. alaska D. the north pole Answer:
D
null
Question: What gland is located at the base of the brain and secretes the hormone melatonin? Options: A. thymus B. pituitary C. thyroid D. pineal Answer:
D
null
Question: Crossover occurs between non-sister chromatids of which chromosomes? Options: A. homologous B. compound chromosomes C. identical chromosomes D. analogous Answer:
A
null
Question: What is the white solid that forms on corroded battery terminals? Options: A. copper sulfate B. ammonia sulfate C. straight sulfate D. lead sulfate Answer:
D
null
Question: What process can cause harmful alleles to become fixed? Options: A. genetic drift B. migration C. mutation D. natural selection Answer:
A
null
Question: Most members of the animal kingdom have differentiated tissues of four main classes—nervous, muscular, connective, and this? Options: A. neural B. crystalline C. epithelial D. digestive Answer:
C