question stringlengths 68 502 | answer stringclasses 4
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Question: What causes the particles of medium to move parallel to the direction of the wave?
Options:
A. longitudinal waves
B. fluid waves
C. mechanical waves
D. Sound waves. | A |
Question: Which state of matter lacks a fixed volume, fixed shape, and consists of charged particles?
Options:
A. isotopes
B. ions
C. atoms
D. electrons | B |
Question: What type of cell transmits electrical impulses in the nervous system?
Options:
A. Large Cell
B. nerve cell
C. toxin cell
D. trace cell | B |
Question: What is the force pushing a rocket called?
Options:
A. momentum
B. thrust
C. friction
D. direction | B |
Question: In headwater streams, what plant process is mostly attributed to algae that are growing on rocks?
Options:
A. reproduction
B. photosynthesis
C. mitosis
D. symbiosis | B |
Question: What is the term that refers to stored chemical energy in organic matter or wastes?
Options:
A. biomass energy
B. starch energy
C. nuclear energy
D. potential energy | A |
Question: The process of photosynthesis ultimately gets powered by what kind of energy?
Options:
A. nonrenewable energy
B. light
C. electricity
D. biofuel | B |
Question: A binary molecular compound is a molecular compound that is composed of what?
Options:
A. four atoms
B. two atoms
C. two elements
D. four elements | C |
Question: Within the first 8 weeks of gestation, a developing embryo establishes the rudimentary structures of all of its organs and tissues from the ectoderm, mesoderm, and endoderm. this process is called what?
Options:
A. abiogenesis
B. parthenogenesis
C. organogenesis
D. biosynthesis | C |
Question: What goes through different larval stages?
Options:
A. plants
B. sponges
C. crustaceans
D. octopuses | C |
Question: What is the major cause of chronic respiratory disease as well as cardiovascular disease and cancer?
Options:
A. exercise
B. drinking
C. smoking
D. diet | C |
Question: Monotremes, marsupials, and placental mammals are subclasses of what?
Options:
A. amphibians
B. birds
C. mammals
D. reptiles | C |
Question: What type of mammal gives birth to young that need to develop further in the mother's pouch after birth?
Options:
A. aborigines
B. whales
C. humans
D. marsupials | D |
Question: What is the measure of how closely molecules are packed together?
Options:
A. volume
B. frequency
C. density
D. length | C |
Question: What is the leading cause of lung cancer?
Options:
A. tobacco smoke
B. tuberculosis
C. heredity
D. chewing tobacco | A |
Question: The golgi removes some sugar monomers and substitutes others, producing a large variety of what?
Options:
A. proteins
B. fats
C. electrolytes
D. carbohydrates | D |
Question: Parenchymal, collenchymal, and sclerenchymal cells are associated with what types of living things?
Options:
A. primates
B. plants
C. fungi
D. parasites | B |
Question: What is the name of the location in which a stream or river starts?
Options:
A. mouth
B. spring
C. source
D. shore | C |
Question: What disease occurs when cells in the breast grow out of control and form a tumor?
Options:
A. breast cancer
B. adult breast growth
C. muscle cancer
D. muscular cyst | A |
Question: What process refers to the changes that occur in populations of living organisms over time?
Options:
A. evolution
B. spontaneous mutation
C. variation
D. adaptation | A |
Question: Alkenes can react with what to form alcohols?
Options:
A. air
B. proteins
C. sugars
D. water | D |
Question: Wind blown sand contributes to what type of erosion?
Options:
A. filtration
B. abrasion
C. vegetation
D. sedimentary | B |
Question: Bases are ionic compounds consisting of hydroxide ions and a what?
Options:
A. cation
B. carbonate
C. cinion
D. sulfate | A |
Question: What causes the menstrual cycle to be repeated?
Options:
A. uteris
B. lack of fertilization
C. gravity
D. ovaries | B |
Question: What happens when turgid cells in a nonwoody tissue push against each other?
Options:
A. the tissue dies
B. the tissue stiffens
C. the tissues merge
D. the tissue melts | B |
Question: What is the waxy substance that epidermal cells secrete?
Options:
A. saliva
B. cuticle
C. bile
D. cellulose | B |
Question: What is the length of the route between two points?
Options:
A. distance
B. direction
C. speed
D. velocity | A |
Question: According to the first law of thermodynamics, what can neither be created nor destroyed?
Options:
A. food
B. light
C. energy
D. fuel | C |
Question: What are the three primary pigment colors?
Options:
A. red, green, blue
B. cyan, yellow, magenta
C. red, white, blue
D. green, orange, purple | B |
Question: How do organophostbate pesticides work?
Options:
A. inhibiting acetylcholinesterase
B. inhibiting cryptosporidium
C. inhibiting testosterone
D. inhibiting reticulum | A |
Question: In the case of a light bulb, electricity is converted to light and what kind of energy?
Options:
A. thermal
B. abstract
C. nuclear
D. chemical | A |
Question: Where in relation to the home, are levels of vocs found to be higher?
Options:
A. in Fields
B. outdoors
C. On slopes
D. indoors | D |
Question: Density and pressure of air decreases with what?
Options:
A. humidity
B. altitude
C. temperature
D. horizontal distance | B |
Question: Energy is absorbed in the process of converting a liquid at its boiling point into a what?
Options:
A. plasma
B. solid
C. mesh
D. gas | D |
Question: Images in what type of mirror are reversed left and right but not reversed top and bottom?
Options:
A. convex
B. concave
C. virtual
D. plane mirror | D |
Question: What do cells produce as they age?
Options:
A. oxidants
B. proto-oncogenes
C. carcinogens
D. wrinkles | B |
Question: The body of the simplest sponges takes the shape of a cylinder with a large central cavity, called?
Options:
A. spirogyra
B. vacuole
C. spongocoel
D. spicule | C |
Question: Laid on dry land by reptiles, amniotic eggs have what that prevents them from drying out?
Options:
A. waterproof membranes
B. double shells
C. oil coating
D. double yolks | A |
Question: What three rs represent the steps that you personally can take to conserve our natural resources and minimize waste?
Options:
A. rinse, reuse, recycle
B. reduce, reuse, recycle
C. remove, reduce, reuse
D. reduce, reuse, re-educate | B |
Question: What is the process that allows organisms with better traits to survive and produce?
Options:
A. succession
B. natural selection
C. adaptation
D. spontaneous mutation | B |
Question: What is the term for a substance that increases the rate of a chemical reaction but is not changed or used up in the reaction?
Options:
A. a mechanism
B. a catalyst
C. a contribute
D. an acid | B |
Question: What type of compounds can form crystals?
Options:
A. magnetic compounds
B. molecular compounds
C. integral compounds
D. ionic compounds | D |
Question: In grazing, a predator partially eats but does not kill what?
Options:
A. prey
B. pack
C. predators
D. time | A |
Question: Bone tissues include compact bone, spongy bone, bone marrow, and?
Options:
A. epithelium
B. cartilage
C. esophagus
D. periosteum | D |
Question: What type of bacteria causes the disease called tuberculosis?
Options:
A. mycobacterium
B. E. coli
C. staphylococcus
D. streptococcus | A |
Question: Studies have shown that not only does reproduction have a cost as far as how long male fruit flies live, but also fruit flies that have already mated several times have limited amounts of this?
Options:
A. sperm
B. eggs
C. dna
D. chromosomes | A |
Question: What are the two most common causes of diseases?
Options:
A. bacteria and protazoa
B. nutritional deficiencies
C. bacteria and viruses
D. viruses and protazoa | C |
Question: Organic compounds are defined as covalently bonded compounds containing carbon, excluding carbonates and what else?
Options:
A. gases
B. acids
C. oxides
D. crystals | C |
Question: What drives the turbine in a thermonuclear reactor?
Options:
A. wind energy
B. magnets
C. heated oil
D. heated water or steam | D |
Question: What is the term for physicians and scientists who research and develop vaccines and treat and study conditions ranging from allergies to aids?
Options:
A. immunologists
B. virologists
C. endocrinologists
D. vaccinologists | A |
Question: Where are temperatures the lowest?
Options:
A. at the poles
B. at the equator
C. over the oceans
D. in asia | A |
Question: Protecting the surface of metal prevents what?
Options:
A. extraction
B. evaporation
C. corrosion
D. diffusion | C |
Question: What type of tissues are major barriers to the entry of pathogens into the body?
Options:
A. vascular
B. mucosal
C. nasal
D. skin | B |
Question: Trash that gets into fresh and saltwater waterways is called what type of debris?
Options:
A. pollution
B. water
C. ocean
D. aquatic | D |
Question: What is the term for genes that control the expression of other genes within specific regions of cells in the developing organism?
Options:
A. age genes
B. expression genes
C. gap genes
D. data genes | C |
Question: In vertebrates, what tissue is a type of connective tissue that supports the entire body structure?
Options:
A. collagen
B. cartilage
C. bone
D. blood | C |
Question: Red blood cells don't have a nucleus. this allows them to do what?
Options:
A. carry more oxygen
B. heal faster
C. move faster
D. be redder | A |
Question: The number of electron pairs that hold two atoms together is called?
Options:
A. proton order
B. bond order
C. nuclear order
D. electron order | B |
Question: What occurs when the immune system makes an inflammatory response to a harmless antigen?
Options:
A. asthma attack
B. immunity
C. antibodies
D. allergies | D |
Question: What energy source, now making a comeback, has helped propel ships and pump water for many years?
Options:
A. weather energy
B. geothermal energy
C. solar energy
D. wind energy | D |
Question: What is it called when the nucleus of an atom splits into two smaller nuclei?
Options:
A. nuclear fission
B. complex fission
C. nuclear fusion
D. cell division | A |
Question: The curie (ci) is one measure of the rate of what?
Options:
A. decay
B. division
C. spin
D. growth | A |
Question: A unique type of organism is also known as what?
Options:
A. taxonomy
B. species
C. parasites
D. element | B |
Question: Snakes use what anatomical structure to smell scents in the air?
Options:
A. branched tongue
B. forked tails
C. forked tongue
D. forked eyes | C |
Question: What chemical element helps forms strong bones and teeth in humans?
Options:
A. magnesium
B. iron
C. calcium
D. potassium | C |
Question: The limit to how much solute will dissolve in a given amount of solvent is called what?
Options:
A. potency
B. solubility
C. strength
D. density | B |
Question: What occurs when hot magma transforms rock that it contacts?
Options:
A. contact metamorphism
B. changing metamorphism
C. form metamorphism
D. existence metamorphism | A |
Question: What term refers to entities, events or powers regarded as being beyond nature, and cannot be explained by scientific means?
Options:
A. fictional
B. hypothetical
C. supernatural
D. natural | C |
Question: What causes an elastic force in springs?
Options:
A. freezing
B. velocity
C. stretching or compressing
D. momentum | C |
Question: What effect is responsible for flight paths looking curved?
Options:
A. resonant effect
B. coriolis effect
C. volumetric effect
D. tonal effect | B |
Question: Wetlands are environments in which the soil is either permanently or periodically saturated with what?
Options:
A. hydrogen
B. oil
C. spores
D. water | D |
Question: When the ground absorbs the water and it settles below the surface it is called what?
Options:
A. groundwater
B. glacier
C. precipitation
D. wastewater | A |
Question: Some metabolic pathways release what by breaking down complex molecules to simpler compounds?
Options:
A. water
B. hydrogen
C. fat
D. energy | D |
Question: What is the smallest portion of a crystal lattice?
Options:
A. ionic cell
B. element cell
C. unit cell
D. function cell | C |
Question: What is one major cause of skin cancer?
Options:
A. ultraviolet light
B. infrared light
C. sunscreen
D. visible light | A |
Question: Which important decomposers are known to live just about anywhere on earth?
Options:
A. viruses
B. archeans
C. protazoas
D. sporozoans | B |
Question: In the scientific method, what is the initial, unproven explanation for why something is occurring?
Options:
A. theories
B. hypothesis
C. concepts
D. idea | B |
Question: What is the name of an element with a different number of neutrons?
Options:
A. isotope
B. mineral
C. reaction
D. solution | A |
Question: Nitrogen and sulfur oxides form what type of rain?
Options:
A. common rain
B. heavy rain
C. toxic rain
D. acid rain | D |
Question: Polyester fabric's resistance to wrinkling comes from the cross-linking of what?
Options:
A. wool strands
B. polymer strands
C. algae strands
D. velocity strands | B |
Question: What term refers to the sequence of community and ecosystem changes after a disturbance?
Options:
A. ecological succession
B. physiological succession
C. progressions
D. disturbance succession | A |
Question: What is the network of fibers that organizes structures and activities in the cell called?
Options:
A. cytoskeleton
B. DNA
C. cytoplasm
D. enzymes | A |
Question: Decreasing the volume of a gas and keeping everything else the same will cause its pressure to change in what way?
Options:
A. heat up
B. decrease
C. lower
D. increase | D |
Question: What evolutionary strategy enables substantial activity during sleep for some animals?
Options:
A. adaptation
B. reproduction
C. mutation
D. hibernation | A |
Question: The cells of the blastocyst form an inner cell mass called the what?
Options:
A. embryoblast
B. blastocyst
C. chloroplast
D. xerophyte | A |
Question: How do all musical instruments create sound?
Options:
A. conduction
B. condensation
C. stimulation
D. vibration | D |
Question: What system disorders include kidney stones, kidney failure, and urinary tract infections?
Options:
A. renal system
B. digestive system
C. nervous system
D. urinary system | D |
Question: What type of respiration has the advantage of releasing more energy?
Options:
A. elastic
B. aerobic
C. kinetic
D. anaerobic | B |
Question: Major climate types are based on what two things?
Options:
A. topography & temperature
B. oxygen & precipitation
C. temperature & precipitation
D. environment & precipitation | C |
Question: When amino acids bind together, they form a long chain called what, which is an essential component of protein?
Options:
A. lipids
B. polypeptide
C. enzyme
D. peptide | B |
Question: What type of cells does meiosis produce?
Options:
A. haploid daughter cells
B. child cells
C. diploid daughter cells
D. mutated cells | A |
Question: Organisms that lack both a nucleus and membrane-bound organelles are known as what, in general?
Options:
A. trophic
B. photosynthetic
C. barren
D. prokaryotic | D |
Question: What happens to most of the energy in a trophic level as it passes to the next higher level?
Options:
A. it increases
B. it stays the same
C. it is lost
D. it is transferred | C |
Question: What is the name for a specific amount of solute that can dissolve in a given amount of solvent?
Options:
A. concentration
B. solubility
C. viscosity
D. humidity | B |
Question: What is freshwater below the earth's surface called?
Options:
A. sediment
B. geyser
C. precipitation
D. groundwater | D |
Question: What forms when crystals precipitate out from a liquid?
Options:
A. liquid sedimentary rocks
B. plasma sedimentary rocks
C. chemical sedimentary rocks
D. plants sedimentary rocks | C |
Question: What do people build to protect areas from floods?
Options:
A. sewers
B. dams
C. reinforced walls
D. drains | B |
Question: What system of the body is responsible for ultimately ridding it of waste and excess water?
Options:
A. respiratory system
B. circulatory system
C. excretory system
D. digestive system | C |
Question: What's it called when there's a sudden flow of mud?
Options:
A. dirt bath
B. sediment
C. mudflow
D. avalanche | C |
Question: Which zone is located below 200 meters from the surface?
Options:
A. observable zone
B. mesopelagic
C. aphotic zone
D. epipelagic | C |
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