question stringlengths 68 502 | answer stringclasses 4
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Question: What group of single-celled organisms lacking a nucleus comprises the most numerous organisms on earth?
Options:
A. prokaryotes
B. carbohydrates
C. eukaryotes
D. fungi | A |
Question: Diamond, graphite and fullerene are examples of what form of carbon?
Options:
A. crystalline
B. faceted
C. zirconia
D. magnesium | A |
Question: A hot-water heating system uses what type of energy to heat water?
Options:
A. potential energy
B. thermal energy
C. atmospheric energy
D. negative energy | B |
Question: What captures carbon dioxide as it is emitted by a power plant before it enters the atmosphere?
Options:
A. chemical sequestration
B. nitrogen sequestration
C. oxide sequestration
D. carbon sequestration | D |
Question: What type of oil is being explored to replace petroleum products in lubricants?
Options:
A. essential oil
B. whale oil
C. vegetable
D. diesel | C |
Question: What advantage equals the distance of effort divided by the distance the object moves and is also equal to the output force divided by the input force?
Options:
A. potential
B. constant
C. mechanical
D. atomic | C |
Question: What is the outer layer of skin, consisting almost entirely of epithelial cells?
Options:
A. dermis
B. epidermis
C. hypodermis
D. connective tissue | B |
Question: What is the accumulated total of all the biochemical reactions occurring in a cell or organism called?
Options:
A. metabolism
B. respiration
C. circulation
D. expansion | A |
Question: When fertilizer ends up in bodies of water, the added nutrients cause excessive growth referred to as what, which can render the water unfit for human consumption or recreation?
Options:
A. algal bloom
B. caustic bloom
C. agricultural bloom
D. chemical bloom | A |
Question: What part of the cell controls what enters and leaves?
Options:
A. nucleus
B. protein
C. organism
D. membrane | D |
Question: Where does the development of a fetus take place?
Options:
A. the female reproductive system
B. The kidney
C. The bladder
D. The vagina | A |
Question: What is the critical factor for the survival of segmented worms?
Options:
A. water and humidity
B. sunlight and water
C. humidity and sunlight
D. sunlight and warmth | A |
Question: During sexual arousal what does the clitoris, vagina, and labia minora all engorge with?
Options:
A. urine
B. fluid
C. bacteria
D. blood | D |
Question: What is another term for joules per second?
Options:
A. watts
B. parsons
C. jiffies
D. jacobs | A |
Question: What is extracted from rock by heap leaching, flotation, or smelting?
Options:
A. ore
B. methane
C. copper
D. fuel | A |
Question: What tool is useful for studying the ocean floor because the environment is remote and underwater?
Options:
A. microscope
B. sonar
C. scale
D. telescope | B |
Question: What is the functional unit of the kidney which actively filters blood and generates urine?
Options:
A. epithelial
B. mecrophron
C. sechron
D. nephron | D |
Question: Name two candidates for the original sources of viral genomes.
Options:
A. chloroplasts and transposons
B. plasmids and transposons
C. macrophages and transposons
D. ediacara and transposons | B |
Question: What do you call a substance that is not an acid or a base?
Options:
A. equivalent
B. oxidic
C. neutral
D. toxic | C |
Question: An amide bond joining two amino acid units is called a what?
Options:
A. ammonia bond
B. precipitate bond
C. carboxyl bond
D. peptide bond | D |
Question: What is the name for spherical groups of old stars held tightly together by gravity?
Options:
A. globular clusters
B. elliptical clusters
C. nebula
D. dark matter | A |
Question: What type of state do most fungi spend their lives in?
Options:
A. haploid
B. triploid
C. diploid
D. meiosis | A |
Question: What is the white solid that forms on corroded battery terminals?
Options:
A. straight sulfate
B. ammonia sulfate
C. copper sulfate
D. lead sulfate | D |
Question: What does the decomposition of dead organisms and organic waste release into the atmosphere, soil, or ocean?
Options:
A. hydrogen
B. nitrogen
C. oxygen
D. carbon | D |
Question: In which process do two light nuclei combine to produce a heavier nucleus and great energy?
Options:
A. general fusion
B. nuclear fusion
C. certain fusion
D. light fusion | B |
Question: What results from the consumption of pathogenic bacteria, viruses, or parasites that contaminate food?
Options:
A. parabens diseases
B. airborne diseases
C. foodborne diseases
D. hidebound diseases | C |
Question: What type of physical properties of a substance do not depend on amount?
Options:
A. stable
B. extensive
C. inherent
D. intensive | D |
Question: A wave that consists of vibrating electric and magnetic fields is called what?
Options:
A. thermal wave
B. mechanical wave
C. electromagnetic wave
D. propagate wave | C |
Question: Both endocytosis and ______ are active transport processes.
Options:
A. exocytosis
B. cellular respiration
C. proteolysis
D. biosynthesis | A |
Question: What type of roads and parking lots prevent rainwater from soaking into the ground?
Options:
A. paved
B. dirt
C. gravel
D. shaded | A |
Question: What type of acid is often used as a preservative for acidic foods such as fruit juices?
Options:
A. benzoic acid
B. citric acid
C. hydrochloric acid
D. sulfuric acid | A |
Question: Vascular plants evolved what basic structures to collect sunlight?
Options:
A. roots
B. stems
C. leaves
D. flowers | C |
Question: The entropy is decreasing because a gas is becoming a what?
Options:
A. vapor cloud
B. liquid
C. solid
D. swirl | B |
Question: Sucrose does not undergo reactions that are typical of aldehydes and ketones, therefore it is a nonreducing what?
Options:
A. sugar
B. salt
C. juice
D. wheat | A |
Question: An electric stove changes electric current to what form of energy?
Options:
A. thermodynamic
B. thermal
C. nuclear
D. kinetic | B |
Question: Mammals are endothermic vertebrates that have four limbs and produce what type of eggs?
Options:
A. gymnoic
B. amniotic
C. umbilical
D. epithelial | B |
Question: Which group of metals in the periodic table include elements such as sodium and potassium?
Options:
A. igneous metals
B. alkali metals
C. lanthanides
D. actinides | B |
Question: What is the term for force that opposes motion between any touching surfaces?
Options:
A. gravity
B. stress
C. friction
D. tension | C |
Question: Most animals are in which clade?
Options:
A. eutheria
B. metazoa
C. bilateria
D. synapsids | C |
Question: What system carries nerve impulses to internal organs, controlling activities that are not under your control, such as sweating and digesting food?
Options:
A. autonomic nervous system
B. limbic nervous system
C. circulatory nervous system
D. hormonal nervous system | A |
Question: What are invertebrate chordates that retain all four defining chordate traits as adults called?
Options:
A. sporozoans
B. lancelets
C. tunicates
D. vertebrates | B |
Question: What has traditionally been defined as a force of attraction between two masses?
Options:
A. mass
B. volume
C. gravity
D. motion | C |
Question: What members of an ecosystem food chain take in food by eating producers or other living things?
Options:
A. primary producers
B. insectivores
C. consumers
D. decomposers | C |
Question: What are small organelles and are the site of protein synthesis?
Options:
A. ribosomes
B. vacuoles
C. nucleus
D. chloroplasts | A |
Question: Lungs, pharynx, larynx, trachea, and bronchi are part of which system?
Options:
A. neural
B. digestive
C. nervous
D. respiratory | D |
Question: What is necessary for growth and energy?
Options:
A. determination
B. warmth
C. nutrients
D. breeding | C |
Question: Bryophyta is the formal taxonomic name for the phylum that consists solely of what?
Options:
A. trees
B. lichens
C. mosses
D. grasses | C |
Question: In humans, how many chromosomes does each somatic cell have?
Options:
A. 51
B. 46
C. 36
D. 48 | B |
Question: Like mitochondria, plastids contain their own what?
Options:
A. dna
B. molecule
C. bacteria
D. riboflavin | A |
Question: Terrestrial and aquatic are the two basic categories of what, on earth?
Options:
A. dendrites
B. biomes
C. atmospheres
D. substrates | B |
Question: When dissolved in water, what do strong acids transfer to the solvent completely?
Options:
A. acidic protons
B. acidic proteins
C. acidic neutrons
D. acidic electrons | A |
Question: On the atomic level, the dissolution of an ionic compound occurs when water interacts with the what in the crystal lattice?
Options:
A. ions
B. fractals
C. particles
D. atoms | A |
Question: What is one method to observe nebulae?
Options:
A. telescope
B. microscope
C. kaleidoscope
D. mirror | A |
Question: When alternating primary current passes through coil p, it does what to the iron core?
Options:
A. magnetizes it
B. creates it
C. electrilizes it
D. heats it | A |
Question: What state of matter exists if particles do not have enough kinetic energy to overcome the force of attraction between them?
Options:
A. plasma
B. solid
C. liquid
D. gas | B |
Question: What is the“packet” of energy called that the nucleus emits during gamma decay?
Options:
A. gamma particle
B. transient particle
C. ultraviolet particle
D. radioactive particle | A |
Question: The movement of molten metal in earth's outer core creates?
Options:
A. the magnetic field
B. the gravitational field
C. the stellar field
D. earthquakes | A |
Question: Mechanical churning of food in what organ serves to further break it apart and expose more of its surface area to digestive juices, creating an acidic “soup” called chyme?
Options:
A. kidneys
B. liver
C. stomach
D. gall bladder | C |
Question: A constant and plentiful supply of oxygen is required in order to maintain a high rate of what?
Options:
A. cell division
B. metabolism
C. magnesium
D. digestion | B |
Question: Organisms interact with each other and what else?
Options:
A. thermal environment
B. physical environment
C. atmospheric environment
D. outside enviroment | B |
Question: What is the center of an earthquake called?
Options:
A. the impact
B. the epicenter
C. the magnitude
D. the core | B |
Question: Calvin cycle reactions can be organized into three basic stages: fixation, reduction, and this?
Options:
A. regeneration
B. demarcation
C. transformation
D. creation | A |
Question: What type of cells are arranged into tightly packed sheaths around the veins of the leaf?
Options:
A. bundle-sheath cells
B. pattern - sheath cells
C. cell walls
D. cellulose | A |
Question: How are the number of moles of carbon dioxide gas calculated?
Options:
A. casuistry
B. relativistic
C. stoichiometry
D. phytochemistry | C |
Question: What is the name of the blood protein that carries oxygen from the lungs to the body's assorted tissues?
Options:
A. insulin
B. White Blood cells
C. plasma
D. hemoglobin | D |
Question: The sun and many other light sources produce waves that are randomly this?
Options:
A. polarized
B. obfuscated
C. amplified
D. colored | A |
Question: Each vertebral vein also flows into which vein?
Options:
A. spiral
B. trichina
C. xerophyte
D. brachiocephalic | D |
Question: Almost all plants make food through what process?
Options:
A. photosynthesis
B. hydrolysis
C. glycolysis
D. evolution | A |
Question: What did darwin call the evolutionary concept of change in populations over generations?
Options:
A. formation with modifications
B. metabolism with modifications
C. reproduction with modifications
D. descent with modifications | D |
Question: Surprisingly, where would you find the earth’s tallest mountains and deepest canyons?
Options:
A. taiga
B. ocean floor
C. Tibet
D. rain forests | B |
Question: The part of the shadow in which light is completely blocked is called what?
Options:
A. corona
B. penumbra
C. umbra
D. eclipse | C |
Question: What is the name of the period of transition between the beginning of puberty and adulthood?
Options:
A. maturation
B. aging
C. childhood
D. adolescence | D |
Question: The formula unit of sodium chloride dissociates into one sodium ion and one?
Options:
A. oxygen ion
B. chloride ion
C. electron
D. magnesium ion | B |
Question: Fibrous root systems have many small branching roots called what?
Options:
A. taproots
B. fibrous roots
C. tendrils
D. vines | B |
Question: A system of glands secretes what chemical messenger molecules into the blood?
Options:
A. hormones
B. acids
C. metabolytes
D. enzymes | A |
Question: In eukaryotic cells, molecules such as enzymes are usually compartmentalized into different what?
Options:
A. organelles
B. organisms
C. atoms
D. electrons | A |
Question: What does the stable form of sulfur at room temperature contain?
Options:
A. electron shell
B. four - membered rings
C. eight-membered rings
D. six - membered rings | C |
Question: What term means the amount of a substance required to form a saturated solution in a given amount of solvent at a specified temperature?
Options:
A. viscosity
B. solubility
C. turbidity
D. concentration | B |
Question: What bone forms the upper jaw and supports the upper teeth?
Options:
A. subaerial bone
B. orbital bone
C. maxillary bone
D. tibular bone | C |
Question: What does increasing a solute's temperature do?
Options:
A. decrease its solubility
B. increases its viscosity
C. no change
D. increases its solubility | D |
Question: What are the pyramid-shaped, paired organs that are connected to the trachea by the right and left bronchi?
Options:
A. ovaries
B. stomachs
C. lungs
D. kidneys | C |
Question: The global biosphere includes all areas of what?
Options:
A. geography
B. life
C. study
D. science | B |
Question: Atomic orbitals from different atoms overlap to form what?
Options:
A. space orbitals
B. molecular orbitals
C. plasma orbitals
D. planet orbitals | B |
Question: Particulates cause lung diseases. they can also increase the risk of heart disease and the number of what?
Options:
A. cancer
B. coughing
C. asthma attacks
D. shortness of breath | C |
Question: What reinforces the thin walls of the right ventricle and plays a crucial role in cardiac conduction?
Options:
A. moderator valve
B. pores valve
C. moderator band
D. pores band | C |
Question: What kind of radiation is observed in honeycreeper birds?
Options:
A. spontaneous
B. destructive
C. adaptive
D. symbiotic | C |
Question: What do we call the worldwide radio-navigation system formed from a constellation of 24 satellites and their ground stations?
Options:
A. compass
B. radio waves
C. gps
D. cellular network | C |
Question: What substance can be eroded by wind or water?
Options:
A. wood
B. metal
C. soil
D. sand | C |
Question: What unit of the nervous system consists of a cell body, dendrites, and axon?
Options:
A. neuron
B. mitochondria
C. Transmitter
D. ganglion | A |
Question: What are small planets in our solar system called?
Options:
A. Tiny planets
B. light planets
C. dwarf planets
D. scrub planets | C |
Question: What is electrons in the highest occupied principal energy level of an atom called?
Options:
A. non-valence electrons
B. gradient electrons
C. valence electrons
D. shell electrons | C |
Question: Pacemaker cells stimulate the spontaneous contraction of cardiac muscle as a functional unit, called a what?
Options:
A. coenocyte
B. adipocytes
C. syncytium
D. tapetum | C |
Question: A mineral’s crystal shape is determined by the way what objects are arranged?
Options:
A. Electrons
B. particles
C. atoms
D. molecules | C |
Question: Unlike prokaryotes, eukaryotes have a what?
Options:
A. flagellum
B. mitochondria
C. cell nucleus
D. cell wall | C |
Question: What term is used to describe major changes in the genetic material?
Options:
A. generational alterations
B. chromosomal alterations
C. eukaryotic alterations
D. mutational alterations | B |
Question: What type of rocks form when sediments are compacted and cemented together?
Options:
A. igneous rocks
B. crystalline rocks
C. metamorphic rocks
D. sedimentary rocks | D |
Question: Processes in which matter changes between liquid and solid states are freezing and?
Options:
A. melting
B. boiling
C. transpiration
D. steaming | A |
Question: Abrasion is a process of what type of weathering?
Options:
A. environmental
B. geological
C. mechanical
D. molecular | C |
Question: Mendel’s observation of pea plants also included many crosses that involved multiple traits, which prompted him to formulate the principle of this?
Options:
A. independent contain
B. dependent evolution
C. independent assortment
D. independent texture | C |
Question: The skull consists of cranial bones and what other type of bones?
Options:
A. facial
B. subdermal
C. nasal
D. superficial | A |
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