question stringlengths 68 502 | answer stringclasses 4
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Question: What are the two basic parts that all flowering plants have in common?
Options:
A. blade and petiole
B. leaf and petiole
C. metal and petiole
D. stalk and petiole | A |
Question: Salts are important in maintaining what balance of the blood?
Options:
A. homeostasis
B. osmotic
C. pulmonary
D. kinetic | B |
Question: What do some animals grow to protect themselves in winter?
Options:
A. thin skin
B. scales
C. antennae
D. thicker fur | D |
Question: What weather phenomenon can raise sea level as much as 25 feet when low pressure pulls water upward?
Options:
A. storm rise
B. cloud formation
C. storm surge
D. earthquake surge | C |
Question: The action of sunlight on the skin triggers the body to produce what vitamin?
Options:
A. Vitamin A
B. metabolic d
C. tissue d
D. vitamin d | D |
Question: What is heard when sound waves bounce back from a surface that they can't pass through?
Options:
A. ultrasound
B. echo
C. loop
D. radio | B |
Question: What is hole that is dug or drilled through the ground down to an aquifer?
Options:
A. big hole
B. cave
C. well
D. elevator | C |
Question: What protective substance covers the skin of most reptiles?
Options:
A. feathers
B. scales
C. pores
D. hairs | B |
Question: What step, involving placement of a substance on the stigma, precedes fertilization?
Options:
A. pollination
B. mitosis
C. spawning
D. hibernation | A |
Question: What weather phenomenon is caused by strong warm updrafts from heated ground?
Options:
A. currents
B. eruptions
C. thunderstorms
D. earthquakes | C |
Question: The older parts of what structures anchor the plant and transport water and solutes between the soil and shoots?
Options:
A. leaves
B. roots
C. bark
D. cells | B |
Question: What do you call a specialized type of plant tissue that transports water and nutrients throughout the plant?
Options:
A. vascular tissue
B. cambrium layer
C. thermal tissue
D. chloroplasm | A |
Question: The major fuel for the brain is which carbohydrate?
Options:
A. glutamate
B. glucose
C. insulin
D. sucrose | B |
Question: How do they classify tornadoes?
Options:
A. wind speed
B. amount of destruction
C. wind density
D. wind temperature | A |
Question: What part of the body does hepatitis b effect?
Options:
A. liver
B. kidney
C. joints
D. heart | A |
Question: In the radiative zone, light particles called what can only travel a few millimeters before they hit another particle?
Options:
A. positrons
B. photons
C. neutrons
D. electrons | B |
Question: What natural resource can be damaged by the accumulation of too much salt?
Options:
A. sediment
B. mineral
C. forests
D. soil | D |
Question: What secures teeth in the mouth?
Options:
A. socket
B. muscles
C. plug
D. cartilage | A |
Question: What is the production of offspring without gamete fusion called?
Options:
A. organic reproduction
B. asexual reproduction
C. sexual reproduction
D. ideal reproduction | B |
Question: What causes continents to drift closer to the poles or the equator?
Options:
A. wind
B. tidal pull
C. sediment movements
D. plate movements | D |
Question: What does a hypothesis become after many experiments provide results supporting it?
Options:
A. a study
B. a model
C. a fact
D. a theory | D |
Question: Geologists group rocks based on how they what?
Options:
A. move
B. look
C. form
D. dissove | C |
Question: What organelle contains the genetic material of the cell?
Options:
A. fetus
B. meiosis
C. gamete
D. nucleus | D |
Question: What kind of waves travel through liquids and solids as well as air?
Options:
A. sound waves
B. mind waves
C. light waves
D. radio waves | A |
Question: What is made by trees and other plants during photosynthesis?
Options:
A. nitrogen
B. carbon dioxide
C. oxygen
D. methane | C |
Question: Regardless of the mode, light is modeled as traveling in straight lines called what?
Options:
A. waves
B. rays
C. electrons
D. arrows | B |
Question: What are organisms called, like the red-winged blackbird, that eat many different types of food?
Options:
A. omniverous
B. specalist
C. carniverous
D. generalists | D |
Question: What is a common name for the descriptive hypothesis that help to understand patterns of descent?
Options:
A. evolutionary trees
B. genetic trees
C. gene mapping
D. genetic order | A |
Question: Exemplified by a lit match bursting into flame or the process that forms fossil fuels, chemical reactions vary greatly in terms of what?
Options:
A. speed
B. power
C. density
D. duration | A |
Question: What is the best room in the home to start saving water?
Options:
A. the basement
B. the kitchen
C. the bathroom
D. the bedroom | C |
Question: Latitude affects the amount of which radiation a place receives?
Options:
A. molecular
B. solar
C. thermal
D. surface | B |
Question: What physical property of matter reflects how closely packed the particles are?
Options:
A. volume
B. strength
C. density
D. diameter | C |
Question: What is the force of attraction between fundamental particles called quarks, called.
Options:
A. magnetism
B. gravity
C. strong nuclear force
D. weak nuclear force | C |
Question: The force that pulls objects toward the earth is what?
Options:
A. Friction
B. gravity
C. Tension
D. Magnetic force | B |
Question: What is the distance something travels in a given amount of time called?
Options:
A. speed
B. circulation
C. coverage
D. revolution | A |
Question: One type of tissue, called brown fat, is made up of cells packed full of what?
Options:
A. mitochondria
B. proteins
C. Atoms
D. chromosomes | A |
Question: Abnormal electrical activity in the brain is the cause of what disease associated with seizures?
Options:
A. anemia
B. malaria
C. Alzheimer's
D. epilepsy | D |
Question: Because atoms are always electrically neutral, for each added proton, one of what is also added?
Options:
A. electron
B. ion
C. neutron
D. quark | A |
Question: What is the group of single-celled organisms lacking a nucleus that have a single piece of circular dna in the nucleoid area of the cell?
Options:
A. eukaryotes
B. algae
C. prokaryotes
D. chromosomes | C |
Question: What are electromagnetic waves created by?
Options:
A. particle charges
B. Static Charges
C. oscillating charges
D. gravitational charges | C |
Question: What is the first stage of cellular respiration?
Options:
A. photosynthesis
B. electron transport
C. Krebs cycle
D. glycolysis | D |
Question: Red algae and green algae are the closest relatives of what?
Options:
A. land plants
B. arctic plants
C. transfer plants
D. water plants | A |
Question: The axial skeleton forms the vertical, central axis of the body and includes all bones of the head, neck, chest, and back. it serves to protect the brain, spinal cord, heart, and what else?
Options:
A. knees
B. ovaries
C. intestines
D. lungs | D |
Question: What is an object that orbits a larger object called?
Options:
A. asteroid
B. comet
C. satellite
D. meteorite | C |
Question: When atoms gain or lose electrons, what is formed?
Options:
A. ions
B. molecules
C. gas
D. crystals | A |
Question: Lymph capillaries collect the fluid that leaks from blood capillaries and slowly return it to what system?
Options:
A. circulatory
B. gastrointestinal
C. muscular
D. cardiovascular | D |
Question: Asthma affects what tiny branches into which the bronchi are divided?
Options:
A. bronchioles
B. macrophages
C. cilia
D. platelets | A |
Question: The difference between aldehydes and ketones is the placement of what group within the molecule?
Options:
A. benadryl
B. nucleus
C. carbonyl
D. ammonia | C |
Question: A plane mirror has a flat reflective surface and forms only which kind of images?
Options:
A. virtual
B. spherical
C. reduced
D. enlarged | A |
Question: Dissolved fertilizer can ultimately lead to the creation of what in lakes or coastal oceans, which means a place where nothing can live?
Options:
A. hydrothermal vent
B. dead zone
C. extinction zone
D. deceased zone | B |
Question: When the hydrogen is nearly used up, the star can fuse which element into heavier elements?
Options:
A. oxygen
B. xenon
C. carbon
D. helium | D |
Question: What type of cell has negative anode is positive cathode?
Options:
A. planetoid cell
B. picric cell
C. voltaic cell
D. non-voltaic cell | C |
Question: Which human body system controls the amount of water in the body and removes wastes?
Options:
A. lymphatic system
B. urinary system
C. mucous system
D. digestive system | B |
Question: Rounded grains indicate that the minerals eroded from what?
Options:
A. earlier rock
B. fossils
C. recent rock
D. iron | A |
Question: Changes of state of matter do not involve what type of reaction?
Options:
A. radiation
B. gaseous reaction
C. mechanical reaction
D. chemical reaction | D |
Question: What type of mining is used to recover ores that are deeper into earth’s surface?
Options:
A. explosive mining
B. underwater mining
C. underground
D. deep mining | C |
Question: What are liverworts with a flattened, ribbon-like body called?
Options:
A. hepatic liverworts
B. hornworts
C. thallose liverworts
D. kidney liverworts | C |
Question: What is made up of organisms of the same species that live in the same area?
Options:
A. tissue
B. system
C. countries
D. population | D |
Question: The oxygen atom in a water molecule pull the electrons away from the hydrogen atoms which leads to an unequal distribution of what?
Options:
A. nitrogen
B. charge
C. atomic mass
D. orbits | B |
Question: Are zeroes that show only where the decimal point fall significant or not significant?
Options:
A. sometimes significant
B. neither
C. significant
D. not significant | D |
Question: Torpor, a process that leads to a decrease in activity and metabolism and allows animals to survive adverse conditions, includes what long winter 'sleep'?
Options:
A. hibernation
B. relaxation
C. fermentation
D. pollination | A |
Question: What produces gametes with different alleles?
Options:
A. heterozygotes
B. chromatids
C. anthocyanins
D. prokaryotes | A |
Question: What term is used to describe structures that are similar in unrelated organisms?
Options:
A. isolated
B. reproductive
C. symbolic
D. analogous | D |
Question: What is defined as a saturated layer of rock or soil?
Options:
A. river bank
B. aquifer
C. culvert
D. artesian well | B |
Question: Air flows into the lungs largely due to a difference in what?
Options:
A. gravity
B. pressure
C. resistance
D. thrust | B |
Question: The cytoplasm divides during what stage of the cell cycle?
Options:
A. cytokinesis
B. electrolysis
C. birthing
D. capitis | A |
Question: Researchers have also used insect courtship to explore genetic variation underlying differences in what?
Options:
A. behavior
B. reproduction
C. function
D. instance | A |
Question: What part of the brain lies under the cerebrum and behind the brain stem?
Options:
A. thymus
B. spinal cord
C. medulla
D. cerebellum | D |
Question: In human females, the mammary glands are associated with, but not part of, what organ system that is used to create new humans?
Options:
A. endocrine
B. reproductive
C. digestive
D. immune | B |
Question: What is the term for volcanic mudflows?
Options:
A. plumes
B. cones
C. rivers
D. lahars | D |
Question: During the scientific revolution, who proposed that the sun, not earth, is the center of the solar system?
Options:
A. janus
B. Newton
C. copernicus
D. Galileo | C |
Question: Quantum chromodynamics combines what property with quark theory?
Options:
A. sound
B. mass
C. contrast
D. color | D |
Question: Traits inherited in mendelian patterns are either?
Options:
A. recessive or allelic
B. divergent or dominant
C. dominant or recessive
D. dominant or autosomal | C |
Question: What kind of reproduction results in offspring that are genetically unique?
Options:
A. asexual reproduction
B. fragmentation
C. sexual reproduction
D. budding | C |
Question: How many vertebrae make up the human vertebral column?
Options:
A. 32
B. 33
C. 35
D. 35 | B |
Question: What do cells of dermal tissue secrete?
Options:
A. blood
B. cuticle
C. moisture
D. hair | B |
Question: What is the term for many different types of animals within the same species?
Options:
A. habitat
B. pollution
C. differentiation
D. diversity | D |
Question: What is a process in which some substances change into different substances?
Options:
A. a chemical reaction
B. a thermodynamic reaction
C. a toxic reaction
D. a bio reaction | A |
Question: What causes nitrate to go back to its gaseous nitrogen state?
Options:
A. decomposers
B. denitrifying bacteria
C. phytoflagellate bacteria
D. enzymes | B |
Question: What is the metabolic process by which cells obtain energy by “burning” glucose?
Options:
A. cellular transportation
B. cellular digestion
C. electromagnetic respiration
D. cellular respiration | D |
Question: What weakly scatters visible light?
Options:
A. space
B. air
C. water
D. Reflection | B |
Question: Arteries carry oxygenated blood away from the heart, what carries un-oxygenated blood back to the heart?
Options:
A. glands
B. veins
C. intestines
D. lungs | B |
Question: What type of analysis is performed to study gene expression patterns in cells?
Options:
A. rna analysis
B. dna analysis
C. residues analysis
D. proteins analysis | A |
Question: What class are centipedes and millipedes in?
Options:
A. xerophyte
B. myriapoda
C. terapoda
D. spirogyra | B |
Question: Light moving from air into water is bent ___________ the normal?
Options:
A. more
B. less
C. Longly
D. thinly | A |
Question: An electrical signal along a nerve cell triggers the secretion of what?
Options:
A. attenuation molecules
B. neurotransmitter molecules
C. conduction molecules
D. axons | B |
Question: Carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur are basic elements that form what type of compounds, which are vital to life?
Options:
A. amino acids
B. organic compounds
C. inorganic compounds
D. hydrocarbons | B |
Question: Urea and carbon dioxide are molecules with how many carbon atoms?
Options:
A. two
B. one
C. even number
D. four | B |
Question: Half of the neurons formed in the embryo are eliminated because of _____________
Options:
A. disease
B. cell death
C. contraction
D. competition | D |
Question: What do omnivores eat?
Options:
A. only plants
B. plants & animals
C. only animals
D. only seafood | B |
Question: Upwelling mantle at the mid-ocean ridge pushes plates in which direction?
Options:
A. westward
B. eastward
C. outward
D. inward | C |
Question: Why are exotic species also called invasive species?
Options:
A. imitate other species
B. help other species
C. disregard other species
D. threaten other species | D |
Question: The process of producing mature sperm is called what?
Options:
A. glycogenolysis
B. spermatosis
C. spermatogenesis
D. ketoacidosis | C |
Question: Unlike theories, which are proved true, what are often falsified?
Options:
A. samples
B. hypotheses
C. conclusions
D. controls | B |
Question: What living things have cell walls containing cellulose and plastids such as chloroplasts?
Options:
A. animals
B. plants
C. mammals
D. reptiles | B |
Question: Where does the energy from an atomic bomb come from?
Options:
A. nucleus of atom
B. electron shell
C. isotope of atom
D. neutron | A |
Question: Removal of dams on rivers is an example of what?
Options:
A. evolution
B. restoration
C. renewal
D. reproduction | B |
Question: What is considered the smallest unit of life?
Options:
A. proteins
B. cell
C. particle
D. molecule | B |
Question: What living things are considered photoautotrophs because they use sunlight and carbon from carbon dioxide to synthesize chemical energy in the form of carbohydrates?
Options:
A. bacteria
B. plants
C. moulds
D. protazoa | B |
Question: Acids are molecular compounds that dissolve in water to produce hydronium ions and what else?
Options:
A. a neutron
B. an alkali
C. a proton
D. an anion | D |
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