subject
float64
question
stringlengths
78
512
answer
stringclasses
4 values
null
Question: The seven bones of the ankle are called the what? Options: A. tarsals B. femurs C. termals D. ankular Answer:
A
null
Question: Haversian canals contain blood vessels and what else? Options: A. nerve fibers B. muscle fibers C. synovial fluid D. collagen fibers Answer:
A
null
Question: What do you call the system of glands that release chemical messenger molecules into the bloodstream? Options: A. homeostasis system B. endocrine system C. nervous system D. limbic system Answer:
B
null
Question: What distinguishing characteristic of annelid anatomy shows specialization and adaptation? Options: A. compression B. asymmetry C. segmentation D. beautiful Answer:
C
null
Question: Population growth is determined by rates of birth, death, immigration, and what else? Options: A. relaxation B. emigration C. excitation D. exploitation Answer:
B
null
Question: What is one method to observe nebulae? Options: A. microscope B. kaleidoscope C. telescope D. mirror Answer:
C
null
Question: The cells of all eukarya have a what? Options: A. necrosis B. nucleus C. epidermis D. chloroplast Answer:
B
null
Question: How does the epidermis renew its layer? Options: A. scabbing B. loofah C. exfoliating scrub D. shedding dead cells Answer:
D
null
Question: Silver is an example of a mineral containing only one kind of what? Options: A. chemical B. mass C. matter D. element Answer:
D
null
Question: At the earth’s surface, the air pressure exerted on you is a result of the weight of what above you? Options: A. humidity B. air C. magnetic force D. water Answer:
B
null
Question: What kind of family is haumea part of? Options: A. orbital family B. eoan family C. a collisional family D. a moclobemide family Answer:
C
null
Question: The risk of what is raised by overexposure to the sun? Options: A. brain cancer B. skin cancer C. particle cancer D. flux cancer Answer:
B
null
Question: Although magma once filled our moon's craters, what is thought to have ended there over a billion years ago? Options: A. mineral activity B. oceanic activity C. volcanic activity D. deserts activity Answer:
C
null
Question: What gives the order of electron filling in an atom? Options: A. aufbau principle B. Bohr's law C. orbit order D. periodic table Answer:
A
null
Question: What is the diploid number for fruit flies? Options: A. 8 B. 10 C. 9 D. 7 Answer:
A
null
Question: Radiometric dating methods, such as carbon-14 dating depend on what type of decay? Options: A. microwave B. radioactive C. nuclear D. carbon Answer:
B
null
Question: What broad group of animals are the first true tetrapods, vertebrates with four limbs? Options: A. fish B. amphibians C. reptiles D. mammals Answer:
B
null
Question: What makes echinoderms force water into the feet and move forward? Options: A. vacuum contractions B. muscle contractions C. spring contractions D. field contractions Answer:
B
null
Question: What decides what may enter or leave a cell? Options: A. golgi apparatus B. nucleus C. cell wall D. cell membrane Answer:
D
null
Question: What are reversible physical changes in matter called? Options: A. transformations B. chemical change C. alterations D. changes of state Answer:
D
null
Question: What flexible organ enables swallowing and speech? Options: A. tongue B. stomach C. large intestine D. diaphram Answer:
A
null
Question: Ionic compounds contain cations and anions rather than what? Options: A. positive molecules B. characterized neutral molecules C. analogous neutral molecules D. discrete neutral molecules Answer:
D
null
Question: What term is used to describe a change in the characteristics of living things over time? Options: A. reproduction B. evolution C. customization D. generation Answer:
B
null
Question: An antigen is a molecule that reacts with some component of the what response? Options: A. digestion B. fight or flight C. hormones D. immune Answer:
D
null
Question: When continental crust is pulled apart, it breaks into blocks that are separated by what? Options: A. layers B. holes C. faults D. levels Answer:
C
null
Question: What method is used to map the earth on flat paper? Options: A. calculations B. forecasts C. surveying D. projections Answer:
D
null
Question: Who is widely known as the father of genetics? Options: A. james watson B. walter gehring C. francis crick D. gregor mendel Answer:
D
null
Question: The curie (ci) is one measure of the rate of what? Options: A. division B. growth C. spin D. decay Answer:
D
null
Question: Some hormones produced by the anterior pituitary regulate the production of hormones by other tissues belonging to what system? Options: A. digestive B. nervous C. endocrine D. cardiovascular Answer:
C
null
Question: What kind of harm does a corrosive substance cause? Options: A. Builds a crust B. eats through objects C. Attracts dust D. Rust objects Answer:
B
null
Question: Mammals are either herbivores, carnivores or what? Options: A. omnivores B. decomposers C. vegetarians D. nematodes Answer:
A
null
Question: A salt concentration of 32 percent is nearly ten times that of what abundant resource? Options: A. fresh water B. oxygen C. algae D. seawater Answer:
D
null
Question: What term is used to describe a collection of molecules surrounded by a phospholipid bilayer that is capable of reproducing itself? Options: A. cell B. proteins C. organism D. atom Answer:
A
null
Question: The difference in electric potential energy which allows for an electric charge to move from one position to another is measured by what si unit? Options: A. ohm B. joule C. volt D. meter Answer:
C
null
Question: Which currents distribute heat around the planet and have a large impact on climate? Options: A. surface B. electrical C. air D. wind Answer:
A
null
Question: How does consuming enterobactin help our body? Options: A. eliminates excess fat B. eliminates excess oxygen C. eliminates excess iron D. builds excess iron Answer:
C
null
Question: What term is used to describe anything that takes up space and has mass? Options: A. size B. matter C. opacity D. weight Answer:
B
null
Question: What type of plug is generally used on metal appliances? Options: A. 4 prong B. 3 prong C. .2 prong D. 5 prong Answer:
B
null
Question: Most enzymes are classified as what? Options: A. lipids B. acids C. proteins D. hormones Answer:
C
null
Question: What occurs when water on the surface changes to water vapor? Options: A. oxidation B. condensation C. photosynthesis D. evaporation Answer:
D
null
Question: A warm-air heating system uses what kind of energy to heat air? Options: A. atmospheric B. thermal C. cosmic D. nuclear Answer:
B
null
Question: What cells secrete signaling molecules that promote sperm production and can control whether germ cells live or die? Options: A. sertoli cells B. egg cells C. erythrocytes D. neurons Answer:
A
null
Question: Atoms of what element ultimately form in a red supergiant? Options: A. gold B. steel C. iron D. coal Answer:
C
null
Question: Cells of what category of organisms can be organized at the level of cells, tissues, organs, and organ systems? Options: A. biomolecular B. multicellular C. intricate D. complex Answer:
B
null
Question: What is the term for a particle from outside the cell engulfing the cells membrane? Options: A. mitosis B. endocytosis C. endometriosis D. metastasis Answer:
B
null
Question: Which phylum are all vertebrate organisms a member of? Options: A. phylum hominid B. pylum protozoa C. phylum arthropod D. phylum chordata Answer:
D
null
Question: What do cells of dermal tissue secrete? Options: A. moisture B. hair C. cuticle D. blood Answer:
C
null
Question: Lipids are available to the body from how many sources? Options: A. one B. five C. two D. three Answer:
D
null
Question: Management programs based on population-regulating factors have helped prevent the extinction of many? Options: A. endangered species B. abundant species C. omnivores D. keystone species Answer:
A
null
Question: What is a cluster of neuron cell bodies in the pns called? Options: A. groupilion B. ganglion C. crystals D. gangnem Answer:
B
null
Question: What spreads sti during sexual contact? Options: A. viruses B. blood C. parasites D. pathogens Answer:
D
null
Question: Over time, what changes solid rock into pieces? Options: A. creep B. metamorphosis C. leaching D. weathering Answer:
D
null
Question: Hfcs are used as a replacement for what? Options: A. gases B. nitrofluorocarbons C. cfcs D. pollutants Answer:
C
null
Question: What consists of these five stages: prophase, prometaphase, metaphase, anaphase, and telophase? Options: A. meiosis B. germination C. evolution D. mitosis Answer:
D
null
Question: In what type of animals may a body cavity be present or absent? Options: A. nonvascular B. triploblastic C. bicellular D. vertebrate Answer:
B
null
Question: What consists of thylakoid membranes surrounded by stroma? Options: A. a photon B. a nucleus C. a stem D. a chloroplast Answer:
D
null
Question: What branch of science is the study of matter and energy? Options: A. physical science B. unnatural science C. negative science D. natural science Answer:
A
null
Question: What is the functional unit of the kidney which actively filters blood and generates urine? Options: A. nephron B. sechron C. epithelial D. mecrophron Answer:
A
null
Question: What is the thick fluid in the space between bones that cushions the joint? Options: A. amniotic fluid B. collagen C. interstitial fluid D. synovial fluid Answer:
D
null
Question: Nitrogen wastes are produced by the breakdown of what during normal metabolism? Options: A. hormones B. lipids C. proteins D. enzymes Answer:
C
null
Question: What part of an animal helps to prevent water loss and gives support and protection? Options: A. backbone B. cuticle C. exoskeleton D. membrane Answer:
C
null
Question: What is the study of matter and energy referred to as? Options: A. physical science B. biology C. cosmology D. geology Answer:
A
null
Question: What type of creature is noted for having its eyes at the tips of stalks or tentacles that emerge from its head? Options: A. corals B. arachnids C. gastropods D. arthropods Answer:
C
null
Question: What is produced when haploid gametes fuse in sexual reproduction? Options: A. isolated zygote B. diploid zygote C. deformity D. cell cluster Answer:
B
null
Question: Sepals, petals, pistils, and stamens are contained in all what, which are actually modified leaves or sporophylls organized around a central stalk? Options: A. chlorophyll B. roots C. stems D. flowers Answer:
D
null
Question: What is the term for the multi-phase process in which the nucleus of the cell divides? Options: A. mutation B. cytokinesis C. mitosis D. epistasis Answer:
C
null
Question: Ocean currents transfer heat from the equator towards what locations? Options: A. tropical zones B. poles C. continents D. east and west Answer:
B
null
Question: What happens to a substance in a liquid state when the temperate is lowed? Options: A. it solidifies B. it dissipates C. it evaporates D. it melts Answer:
A
null
Question: The chromosomes that have a mixture of maternal and paternal sequence are called what? Options: A. recombinant B. DNA C. antibodies D. gene Answer:
A
null
Question: What are the parts used in electronic devices such as computers called? Options: A. batteries B. chargers C. electronic components D. digital components Answer:
C
null
Question: Name the bacteria that make food through photosynthesis and release oxygen into the air? Options: A. phytoplankton B. cyanobacteria C. fusobacteria D. algae Answer:
B
null
Question: The heart contracts rhythmically to pump what to the lungs and the rest of the body? Options: A. blood B. Chyle C. Cerumen D. Bile Answer:
A
null
Question: What is the minimum number of times a partial lunar eclipse will occur each year? Options: A. 11 B. five C. two D. six Answer:
C
null
Question: Changes from a less-ordered state to a more-ordered state (such as a liquid to a solid) are always what? Options: A. endothermic B. reactive C. unbalanced D. exothermic Answer:
D
null
Question: What helps the plasma membrane keep its shape? Options: A. molecules of oxygen B. cytoplasm C. molecules of carbohydrates D. molecules of cholesterol Answer:
D
null
Question: The concept that atoms tend to have eight electrons in their valence electron shell is called what? Options: A. octet rule B. coupling rule C. string rule D. diagonal rule Answer:
A
null
Question: Bones, cartilage, and what other thing make up the skeletal system? Options: A. lungs B. organs C. ligaments D. muscles Answer:
C
null
Question: When the bud is fully developed, it breaks away from the parent cell and forms a new what? Options: A. leaf B. stem C. organism D. flower Answer:
C
null
Question: Birds have light-weight bones that are filled with what? Options: A. air B. blood C. water D. proteins Answer:
A
null
Question: What is fluid friction with air called? Options: A. buoyancy B. gravity C. wind resistance D. air resistance Answer:
D
null
Question: Active transport moves substances from an area of lower concentration to an area of? Options: A. low concentration B. flat concentration C. higher concentration D. the same concentration Answer:
C
null
Question: One of the early signs of cell disease is this "leaking" of what into the body cells? Options: A. potassium ions B. proteins C. glucose D. sodium ions Answer:
D
null
Question: Budding is a form of what type of reproduction in tunicates? Options: A. nuclear B. microscopic C. sexual D. asexual Answer:
D
null
Question: What happens to an animal's telomeres as it ages? Options: A. lengthen B. shorten C. divide D. multiply Answer:
B
null
Question: What does water vapor in the atmosphere cool and condense into? Options: A. rain B. puddles C. oceans D. clouds Answer:
D
null
Question: Animal behavior can be said to be controlled by genetics and experiences, also known as nature and what? Options: A. growth B. nurture C. evolution D. interaction Answer:
B
null
Question: Sandblasting a surface exemplifies what form of erosion? Options: A. glacial B. wind C. water D. abrasion Answer:
D
null
Question: What indicates horizontal distance and are also found on the map legend? Options: A. spikes B. scales C. variations D. edges Answer:
B
null
Question: What may have developed to help our ancestors distinguish between ripe and unripe fruits? Options: A. acute hearing B. night vision C. color vision D. fine motor skills Answer:
C
null
Question: What is the name of the skull that covers the brain and protects it? Options: A. mandible B. the cranium C. cerebrum D. Nasal bone Answer:
B
null
Question: Chlorine is a nonmetal and gains one electron in becoming a what? Options: A. carbonate B. anion C. atom D. sulfate Answer:
B
null
Question: What distant and extraordinarily energetic objects now seem to be early stages of galactic evolution with a supermassive black-hole-devouring material? Options: A. stars B. quasars C. pulsars D. neutrinos Answer:
B
null
Question: Fungi are no longer classified as what, possessing cell walls made of chitin rather than cellulose? Options: A. eukaryotes B. flowers C. plants D. roots Answer:
C
null
Question: What is a simple machine that consists of a rope wrapped around a grooved wheel? Options: A. Inclined plane B. a pulley C. Wheel and axle D. Lever Answer:
B
null
Question: What is emitted by nuclei in alpha, beta, and gamma decay? Options: A. radiation B. magnetic field C. convection D. solar energy Answer:
A
null
Question: An unknown genotype can be determined by observing what, the term for characteristics of the resulting offspring? Options: A. phenotypes B. abnormalities C. chromosonal variations D. clusters Answer:
A
null
Question: What do muscles need to contract? Options: A. stress B. tendons C. stimulus D. pressures Answer:
C
null
Question: Which type of cell division halves the number of chromosomes? Options: A. budding B. mitosis C. fragmentation D. meiosis Answer:
D
null
Question: What type of vertebrates are birds? Options: A. exothermic B. endothermic tetrapod C. invertebrates D. epidermal tetrapod Answer:
B
null
Question: What is the name for animals that have a backbone? Options: A. mammals B. invertebrates C. vertebrates D. skeletates Answer:
C