question stringlengths 68 502 | answer stringclasses 4
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Question: Around 97% of all water on earth is what type of water?
Options:
A. rivers water
B. excess water
C. salt water
D. fresh water | C |
Question: Which type of diabetes is more common?
Options:
A. juvenile diabetes
B. type 2
C. gestational diabetes
D. type 1 | B |
Question: All waves are the way energy travels through what?
Options:
A. time
B. vacuums
C. matter
D. space | C |
Question: What is the cause of behavioral difference between populations?
Options:
A. genetic differences
B. environmental factors
C. electromagnetic differences
D. genetic wavelengths | A |
Question: What is the term for the process in which glucose is made using light energy?
Options:
A. photosynthesis
B. glycolysis
C. hydration
D. compress | A |
Question: Skeletal muscle tissue is arranged in bundles surrounded by this?
Options:
A. connective tissue
B. epithelial tissue
C. cartilage
D. soft tissue | A |
Question: What element on the periodic table forms the most diverse compounds?
Options:
A. helium
B. oxygen
C. hydrogen
D. carbon | D |
Question: As the number of unpaired electrons increases, what happens to the magnetic moment?
Options:
A. gets smaller
B. is destroyed
C. remains the same
D. gets larger | D |
Question: What kind of container is used to measure heat changes during a chemical reaction or physical process?
Options:
A. thermal flask
B. hydrostatic
C. calorimeter
D. graduated cylinder | C |
Question: In the mammal family, what is the name for hoofed animals, such as deer, sheep, goats, pigs, buffalo, elephants and giraffes?
Options:
A. primates
B. ungulates
C. bovines
D. rodents | B |
Question: In the nematic phase, only the long axes of the molecules are parallel, and the ends are staggered at random intervals. in the smectic phase, the long axes of the molecules are parallel, and the molecules are also arranged in planes. finally, in thecholesteric phase, the molecules are arranged in layers; each... | B |
Question: What term means the force of attraction that holds together oppositely charged ions?
Options:
A. electron bond
B. solvent bond
C. ionic bond
D. magnetic bond | C |
Question: In single-celled organisms, plasma membrane extensions, such as whip-like flagella or brush-like cilia, aid in what?
Options:
A. sound
B. pressure
C. sensation
D. movement | D |
Question: What is defined as male gametes that form in the testes and mature in the epididymis?
Options:
A. sperm
B. mucus
C. stereocilia
D. plasma | A |
Question: All planets exhibit the same or nearly the same direction and shape of what path around the sun?
Options:
A. ellipse
B. nucleus
C. revolution
D. orbit | D |
Question: What do you call a change in the dna or rna sequence?
Options:
A. degradation
B. mutation
C. adaptation
D. infection | B |
Question: What is produced when hydrogen gas and oxygen gas are ignited?
Options:
A. liquid
B. Fire
C. air
D. water | D |
Question: What is the term for the buildup of electric charge on an object, which can be transferred to another when touched?
Options:
A. electric potential
B. static electricity
C. static cling
D. electromagnetic electricity | B |
Question: What is the basis of the classification of protists?
Options:
A. mutations shared
B. conditions shared
C. tails shared
D. traits shared | D |
Question: What is the movement of animals from one place to another called?
Options:
A. migration
B. hibernation
C. evacuation
D. extinction | A |
Question: What does the respiratory system exchange between the body and the outside air?
Options:
A. nutrients
B. gases
C. blood
D. fluids | B |
Question: In the body, second in volume to intracellular fluid is what type of fluid, which surrounds cells that are not blood cells?
Options:
A. interstitial fluid
B. circuitry fluid
C. concomitant fluid
D. watery fluid | A |
Question: How many sperm does it take to fertilize an egg?
Options:
A. 2
B. 3
C. 4
D. 1 | D |
Question: The volume of a regularly shaped solid can be calculated from its what?
Options:
A. dimensions
B. layers
C. density
D. mass | A |
Question: What is approximately the average stroke volume in humans?
Options:
A. 80 ml
B. 65 ml
C. 75 ml
D. 70 ml | D |
Question: Systemic communication through the phloem helps integrate the functions of the whole what?
Options:
A. insect
B. bird
C. animal
D. plant | D |
Question: What structure shows the bonding between atoms, with dots representing available electrons?
Options:
A. lewis structure
B. string theory
C. Pascal model
D. Mendelian model | A |
Question: What is a thick, dark brown or black liquid found in rock layers of the earth's crust?
Options:
A. fossil fuel
B. oil
C. coal
D. propane | B |
Question: What are indestructible and constantly in motion?
Options:
A. atoms
B. crystals
C. viruses
D. ions | A |
Question: What kind of reaction do you see when the concentration of reactants is higher?
Options:
A. constant reaction rate
B. slow reaction rate
C. faster reaction rate
D. regular reaction rate | C |
Question: What part of a plant protects the plant cell, maintains its shape, and prevents excessive uptake of water?
Options:
A. root
B. wall
C. chloroplasm
D. stem | B |
Question: The process of splitting atoms creates what kind of waste?
Options:
A. inert
B. safe
C. recyclable
D. radioactive | D |
Question: Chromosomal alterations are mutations that change what?
Options:
A. discovery structure
B. Skeleton Structure
C. detected structure
D. chromosome structure | D |
Question: When an atom gains or loses an electron it becames an?
Options:
A. neutron
B. photon
C. ion
D. electron | C |
Question: What is a type of cell that supports neurons and maintains their environment?
Options:
A. glial cell
B. axon cell
C. neurofilament cell
D. interneuron cell | A |
Question: The coordinated activities of the legume and the rhizobium bacteria depend on what between the partners?
Options:
A. fertilizer signals
B. electric signals
C. chemical signals
D. sight signals | C |
Question: The purpose of scientific investigations generally is to test a what?
Options:
A. question
B. theory
C. hypothesis
D. suggestion | C |
Question: The most common curved mirrors are what?
Options:
A. solid
B. convex
C. concave
D. spherical | D |
Question: What type of tissue covers the outside of a plant in a single layer of cells called the epidermis?
Options:
A. dorsal
B. dermal
C. anterior
D. mucous | B |
Question: In a molecular compound, electrons are shared between atoms in which type of bond?
Options:
A. deformation
B. Ionic
C. corrosion
D. covalent | D |
Question: What process does water undergo to leave behind dissolved substances?
Options:
A. evaporation
B. accumulation
C. ascension
D. oxidation | A |
Question: What type of proteins bind to foreign substances and attempt destruction?
Options:
A. antigens
B. ribosomes
C. membranes
D. antibodies | D |
Question: Photosynthesis involves reactions that are dependent on what?
Options:
A. air
B. food
C. light
D. water | C |
Question: Like simple hormone pathways, hormone cascade pathways typically involve what kind of feedback?
Options:
A. effective
B. neutral
C. positive
D. negative | D |
Question: The ocean basin begins where the ocean meets what?
Options:
A. river
B. land
C. bay
D. sea | B |
Question: What causes cobalt chloride to turn pink?
Options:
A. h20 + ions
B. discussed 2 + ions
C. show 2 + ions
D. co 2+ ions | D |
Question: What bodily defense can be acquired in an active or passive way, and can be natural or artificial?
Options:
A. membrane
B. immunity
C. nerves
D. skin | B |
Question: Like the stem, what basic plant structure contains vascular bundles composed of xylem and phloem?
Options:
A. flower
B. root
C. bark
D. leaf | D |
Question: What kind of symmetry do echinoderm larvae have?
Options:
A. internal
B. radial
C. bilateral
D. spherical | C |
Question: Reducing waste, as well as reusing and recycling resources, can help save what?
Options:
A. natural resources
B. eletrical resources
C. artificial resources
D. coral resources | A |
Question: What is a person who studies the frequency and distribution of disease within human populations and environments called?
Options:
A. biologist
B. anthropologist
C. entymologist
D. epidemiologist | D |
Question: In adaptive radiation, what is the name of the initial species that then subsequently becomes multiple other ones?
Options:
A. father
B. pioneer
C. Mother
D. founder | D |
Question: The structures of both trifluoramine and hydroxylamine are similar to that of what?
Options:
A. nitrogen
B. hydrogen
C. magnesium
D. ammonia | D |
Question: What protects reptiles from drying out?
Options:
A. sweat
B. hairs
C. scales
D. skin | C |
Question: How many chromosomes do bacterial dna have?
Options:
A. one triangular chromosome
B. one rectangular chromosome
C. one circular chromosome
D. one simple chromosome | C |
Question: What makes blue cheese blue?
Options:
A. mites
B. rennit
C. rot
D. fungus | D |
Question: What type of evolution often happens in species that have symbiotic relationships?
Options:
A. succession
B. spontaneous evolution
C. retrogression
D. coevolution | D |
Question: Helicopter pilots can recover from piloting errors by decreasing altitude, turning some of their potential energy into what kind of energy?
Options:
A. free
B. kinetic
C. electrical
D. active | B |
Question: Rise divided by run is called what?
Options:
A. hill
B. slope
C. steep
D. mound | B |
Question: Where did west nile first appear?
Options:
A. Southeast Asia
B. north america
C. Central America
D. North Africa | B |
Question: How do cancer cells typically spread from one part of the body to another?
Options:
A. kidneys
B. liver
C. plasma
D. bloodstream | D |
Question: The rate of the accumulation of neutral what serves as a type of population-based biological clock?
Options:
A. enzymes
B. eukaryotes
C. prokaryotic
D. polymorphisms | D |
Question: The transmitted light strikes a photoelectric tube, which converts the light energy to?
Options:
A. gas
B. electricity
C. color
D. heat | B |
Question: About how many grams of carbohydrates are in a typical apple?
Options:
A. 30
B. 25
C. 35
D. 20 | D |
Question: What is the smallest unit of a chemical element called?
Options:
A. droplet
B. cell
C. atom
D. nucleus | C |
Question: What is the term for a scalar measure of how quickly an object is moving along this line?
Options:
A. speed
B. motion
C. velocity
D. force | A |
Question: A redox reaction rearranges what subatomic particles?
Options:
A. electrons
B. neutrons
C. water molecules
D. protons | A |
Question: What substances digest the food in the vacuole of an ingestive protist?
Options:
A. enzymes
B. hormones
C. carbohydrates
D. lipids | A |
Question: What type of force allows non-polar molecules to interact?
Options:
A. experienced dispersion
B. london dispersion
C. centrifigal dispersion
D. graviitational force | B |
Question: What is a thin layer of bacteria that sticks to a surface?
Options:
A. a biolfilm
B. a monofilm
C. a choanocyte
D. a spicule | A |
Question: The amount of water vapor in the air and the temperature of the medium affects how fast what travels?
Options:
A. traffic
B. sound
C. colour
D. light | B |
Question: An rna codon reading guu encodes for what?
Options:
A. carbon
B. glycine
C. arginine
D. valine | D |
Question: Scanning acoustic microscopes use what kind of waves to scan a specimen?
Options:
A. radio waves
B. sound waves
C. heat waves
D. gamma waves | B |
Question: The contents of which organ are mixed every 20 seconds?
Options:
A. pancreas
B. the stomach
C. kidney
D. the metabolism | B |
Question: How many chambers are in a reptiles heart?
Options:
A. two
B. three
C. ten
D. five | B |
Question: What is the opening in the front of the eye called?
Options:
A. lens
B. pupil
C. iris
D. cornea | B |
Question: When salinity and pressure increase, or when temperature decreases, what happens to water density?
Options:
A. drops
B. fluctuates
C. increases
D. stays the same | C |
Question: The bending of a wave around the edges of an opening or an obstacle is called this?
Options:
A. diffraction
B. absorption
C. sputtering
D. reflection | A |
Question: What controls the shape of a developing zygote early in its development?
Options:
A. chromosomes
B. gap genes
C. storage genes
D. DNA | B |
Question: What happens to structural genes in the presence of tryptophan?
Options:
A. they are exterminated
B. they are transcribed
C. they are not transcribed
D. they are not oxidised | C |
Question: What type of pressure may build up inside the cell when water moves into a cell by osmosis?
Options:
A. pleasurable pressure
B. impervious pressure
C. transverse pressure
D. osmotic pressure | D |
Question: What is the process by which plants make their own food called?
Options:
A. fission
B. photosynthesis
C. fusion
D. atherosclerosis | B |
Question: Conductivity, oxidation state and physical appearance are properties that help determine whether what are metals?
Options:
A. atoms
B. phases
C. elements
D. organisms | C |
Question: What specific part of the brain regulates the endocrine system?
Options:
A. parietal lobe
B. frontal lobe
C. hippocampus
D. hypothalamus | D |
Question: Chemical reactions follow which laws?
Options:
A. Chemical kinetics
B. Physics Analysis
C. thermodynamics
D. Archie's law | C |
Question: There are three basic types of hormones: lipid-derived, amino acid-derived, and what?
Options:
A. acidic
B. secreted
C. manipulated
D. peptide | D |
Question: Fertilization occurs when an egg and sperm come together to form a what?
Options:
A. infant
B. cell
C. eukaryote
D. zygote | D |
Question: The explosion of nitroglycerin, which releases large volumes of gases, is what type of reaction?
Options:
A. exponential
B. endothermic
C. exothermic
D. energetic | C |
Question: What done ozone help protect against?
Options:
A. helium rays
B. gamma rays
C. ultraviolet rays
D. x-rays | C |
Question: What category of food includes sugars, starches and fibers?
Options:
A. proteins
B. alcohols
C. carbohydrates
D. enzymes | C |
Question: What are substances that the body needs for energy, building materials, and control of body processes?
Options:
A. carbons
B. nutrients
C. acids
D. molecules | B |
Question: What law shows the relationships among temperature, volume, and pressure?
Options:
A. combined gas
B. Newton's law
C. Law of Conservation
D. Murphy's Law | A |
Question: What 2 things keep polar bears warm in their arctic ecosystem?
Options:
A. colourful fur , blubber
B. thick fur, blubber
C. hibernation, thick fur
D. camouflage, blubber | B |
Question: What two things are a phospholipid molecules composed of?
Options:
A. hydrophillic head , and substrate tails
B. hydrophillic head , and adhesion tails
C. hydrophillic head , and hydrophobic tails
D. hemophillic head, and substrate tails | C |
Question: When plants reproduce, the offspring has characteristics similar to the?
Options:
A. parents
B. grandparents
C. cousins
D. siblings | A |
Question: Algae are like plants mainly because they contain what?
Options:
A. chloroplasts
B. cells
C. organelles
D. cell wall | A |
Question: The radius of an atom is defined as one-half the distance between the nuclei in a molecule consisting of two identical atoms joined by what?
Options:
A. ionic bond
B. hydrogen bond
C. covalent bond
D. metallic bond | C |
Question: What is it called when a mistake occurs in dna replication.
Options:
A. mutation
B. degradation
C. radiation
D. adaptation | A |
Question: Birds are thought to have evolved around 150 million years ago from what?
Options:
A. teradactils
B. raptor dinosaurs
C. parrot dinosaurs
D. theropod dinosaurs | D |
Question: The mostly subterranean lifestyle of stone plants reduces water loss from evaporation and inhibits what?
Options:
A. tissues
B. reactions
C. chlorophyll
D. photosynthesis | D |
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