question stringlengths 68 502 | answer stringclasses 4
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|---|---|
Question: What happens to the temperature of a system during phase change?
Options:
A. decreases
B. increases
C. fluctuates rapidly
D. remains constant | D |
Question: What is the major cause of outdoor air pollution?
Options:
A. burning fossil fuels
B. manufacturing industry
C. electric lines
D. agricultural equipment | A |
Question: Why does a metal spoon heat up quickly when placed in a hot drink?
Options:
A. low specific heat
B. convection
C. insulation
D. high specific heat | A |
Question: What does the megaspore mother cell produce after meiosis division?
Options:
A. four haploid megaspores
B. four diploid megaspores
C. two diploid megapores
D. two haploid megaspores | A |
Question: Synaptic connections can change over time depending on what?
Options:
A. activity level
B. age
C. weight
D. diet | A |
Question: What is the body of a roundworm covered with?
Options:
A. thick scales
B. thin epidermis
C. slime
D. tough cuticle | D |
Question: The end of the phospholipid molecule that is polar and attracts water is called what?
Options:
A. magnetic
B. cytosolic
C. hydrophobic
D. hydrophilic | D |
Question: What is known as the universal solvent?
Options:
A. air
B. vinegar
C. water
D. oil | C |
Question: Any organism that causes disease is called what?
Options:
A. a microbe
B. a parasite
C. a pathogen
D. a virus | C |
Question: Electric generators change kinetic energy to what type of energy?
Options:
A. thermal
B. light
C. electrical
D. intrinsic | C |
Question: Brown algae are important commodities for what?
Options:
A. fish
B. humans
C. parasites
D. reptiles | B |
Question: What does the large central vacuole do?
Options:
A. store water
B. create glucose
C. heat water
D. use water | A |
Question: What is the ratio of solutes in a solution to a volume of solvent in a solution known as?
Options:
A. molarity
B. osmolality
C. molality
D. equilibrium | B |
Question: What type of rock contains concentrations of valuable minerals?
Options:
A. metamorphic
B. ores
C. sedimentary
D. igneous | B |
Question: How many digits do primates have on each extremity?
Options:
A. five
B. ten
C. three
D. four | A |
Question: Dna is normally found within what region of a cell?
Options:
A. Golgi apparatus
B. mitochondria
C. genome sequence
D. nucleus | D |
Question: Water and carbon dioxide molecules are reactants in what plant process?
Options:
A. digestion
B. glycolysis
C. breathing
D. photosynthesis | D |
Question: Gene therapy is a type of what kind of engineering?
Options:
A. chemical engineering
B. mechanical engineering
C. genetic engineering
D. electrical engineering | C |
Question: What is mass number?
Options:
A. to total number of electrons and neutrons in a nucleus
B. the total number of protons and chondrichthyes in a nucleus
C. the total number of protons and neutrons in a nucleus
D. to total number of protons and electrons in a nucleus | C |
Question: What rises through solid rocks where conditions are right?
Options:
A. nitrogen
B. magma
C. water
D. crystals | B |
Question: What is the connecting piece of a sperm packed with?
Options:
A. mitochondria
B. protein
C. Gelatin
D. glucose | A |
Question: What is a diagram that shows a single way that energy flows throughout an ecosystem?
Options:
A. water cycle
B. dependent chain
C. fuel chain
D. food chain | D |
Question: Different colors of light differ in terms of which important attribute?
Options:
A. lenses
B. frequencies
C. wavelengths
D. prisms | C |
Question: Ion drives have low thrust but high what?
Options:
A. power
B. tolerance
C. acceleration
D. efficiency | D |
Question: For most waves, energy is proportional to what, a term that describes the height of the wave?
Options:
A. wave frequency
B. wave amplitude
C. wave volume
D. wave threshold | B |
Question: What are the primary causes of bone fractures?
Options:
A. overuse
B. spiral impact or bending
C. sideways impact or bending
D. step impact or bending | C |
Question: Water is polar and has electrically charged ends, so it is attracted to the oppositely charged end of a phospholipid molecule, which is described by what term meaning "water-loving"?
Options:
A. hydrophilic
B. cytosolic
C. hydrophobic
D. aqueous | A |
Question: What is produced when a base is dissolved in water?
Options:
A. alkaline ions
B. synthesis ions
C. ingredient ions
D. hydroxide ions | D |
Question: What do mammals conserve heat with?
Options:
A. hair or fur
B. fur or muscle
C. tendons or hair
D. skin or bones | A |
Question: What is a mutation that changes all or much of a particular chromosome?
Options:
A. muscular mutation
B. biochemical mutation
C. chromosomal mutation
D. kinetic mutation | C |
Question: Defined as a difference in electric potential energy, a source of what is required in order to produce an electrical current?
Options:
A. momentum
B. wattage
C. voltage
D. magnetism | C |
Question: What hydrocarbons contain only single bonds between carbon atoms?
Options:
A. saturated hydrocarbons
B. simple carbohydrates
C. caloric hydrocarbons
D. unsaturated hydrocarbons | A |
Question: What is a decrease in the magnitude of the membrane potential?
Options:
A. inflammation
B. depolarization
C. digestion
D. ionization | B |
Question: Water pollution occurs when chemicals, sewage, trash, or heat enter what?
Options:
A. renewable resources
B. natural resources
C. water resources
D. air resources | C |
Question: Radioisotopes may vary greatly in their rate of decay, decaying faster if their nuclei are more what?
Options:
A. immature
B. mature
C. stable
D. unstable | D |
Question: Where can composite volcanoes most frequently be found?
Options:
A. convergent boundaries
B. astatine boundaries
C. divergent boundaries
D. transform boundaries | A |
Question: The digestive, excretory, and reproductive systems of amphibians share a body cavity called what?
Options:
A. anus
B. stoma
C. cloaca
D. urethra | C |
Question: Vertebrates are a subphylum of what phylum?
Options:
A. arthropoda
B. chordata
C. porifera
D. hydrozoa | B |
Question: What is the latin name for mercury?
Options:
A. hydrargyrum
B. spirogyra
C. trichina
D. stibium | A |
Question: The brain is said to contain gray matter, while what related structure contains white matter separated into columns?
Options:
A. brain stem
B. orbital lobe
C. spinal cord
D. amygdala | C |
Question: What type of behavior occurs naturally in all animals of a given species?
Options:
A. reflex
B. learned
C. innate
D. observational | C |
Question: What orbits an atoms' nucleus?
Options:
A. isotopes
B. negatively charged electrons
C. neutrally charged ions
D. positively charged protons | B |
Question: What are the three forms of water as found in nature?
Options:
A. solid, liquid, gas
B. balanced , liquid , gas
C. solid , mixture , gas
D. ice, vapor, sleet | A |
Question: What type of digestion is chewing an example of?
Options:
A. mechanical
B. fluid
C. electromagnetic
D. gravity | A |
Question: How many major massive extinctions have been since life began on earth?
Options:
A. three
B. five
C. four
D. one | B |
Question: What tool do scientist's use to show the evolutionary pathways and connections among organisms?
Options:
A. photogenetic tree
B. superficial tree
C. conceptual tree
D. phylogenetic tree | D |
Question: What kind of bonds are there between carbon atoms in saturated fatty acids?
Options:
A. chemical
B. double
C. single
D. electrical | C |
Question: In winter, water does what, becoming solid and causing hoses to rupture and engine blocks to crack?
Options:
A. crystallizes
B. freeze
C. fractures
D. shrinks | B |
Question: Unlike archaea and eukaryotes, bacteria have a cell wall made of what?
Options:
A. substrates
B. peptidoglycan
C. phospholipids
D. hydrogen | B |
Question: What happens to the crust if the moving oceanic crust reaches a deep sea trench?
Options:
A. sinks into mantle
B. forms a continent
C. ocean volcano
D. it cleaves | A |
Question: Polygenic traits are controlled by more than one of these?
Options:
A. genes
B. chromosomes
C. genomes
D. phenotypes | A |
Question: What system plays a critical role in the regulation of vascular homeostasis?
Options:
A. endocrine system
B. nervous system
C. renal system
D. circulatory system | B |
Question: How many nonpolar bonds does an oxygen molecule have?
Options:
A. 7
B. 5
C. 3
D. 2 | D |
Question: What type of disease occurs when the immune system fails to recognize the body's own molecules?
Options:
A. autoimmune
B. congenital
C. gastrointestinal
D. cardiac | A |
Question: What organism is an important pioneer on cleared rock and soil surfaces, such as volcanic flows and burned forests?
Options:
A. cysts
B. pigment
C. lichen
D. algae | C |
Question: What hypothetical link between development of herbivores and plant defenses is observed in nature, for instance in seeds that are unsavory to animals?
Options:
A. coevolution
B. interconnection
C. natural selection
D. abjection | A |
Question: The term salt can refer to essentially any of what compounds?
Options:
A. solvent
B. ionic
C. metallic
D. absorption | B |
Question: Where is the hypothalamus–pituitary complex located in the body?
Options:
A. tribulus of the brain
B. diencephalon of the brain
C. stem of the brain
D. subthalamic of the brain | B |
Question: Where is the guinea worm a serious problem?
Options:
A. africa
B. ukraine
C. florida
D. russia | A |
Question: The reaction of calcium oxide with carbon dioxide forms what?
Options:
A. carbon monoxide
B. nitrogen
C. calcium carbonate
D. nitrogen carbonate | C |
Question: Cilia or flagella structures give protists what ability?
Options:
A. movement
B. reproduction
C. breathing
D. eating | A |
Question: What is characterized by uncontrolled cell division of abnormal cells?
Options:
A. concussions
B. cancer
C. radiation
D. hepatitis | B |
Question: Our global ecological footprint depends on resource use per person and what population factor?
Options:
A. population decrease
B. population sample
C. population density
D. population fluctuation | C |
Question: What do all sound waves begin with?
Options:
A. talking matter
B. enclosing matter
C. vibrating matter
D. oscillating matter | C |
Question: Animal starch, called glycogen, is stored in the liver and where else?
Options:
A. hands
B. muscles
C. nerves
D. kidneys | B |
Question: Kepler's laws relate to the motion of what?
Options:
A. planets
B. the sun
C. oceans
D. continents | A |
Question: Colloids are used industrially as what?
Options:
A. impurities
B. organisms
C. solutions
D. catalysts | D |
Question: What is defined as the temperature plus precipitation of an area over a long period of time?
Options:
A. climate
B. environment
C. conditions
D. weather | A |
Question: What manages the material and energy resources of the cell?
Options:
A. nucleus
B. metabolism
C. respiration
D. cell wall | B |
Question: What is the midpiece of sperm packed with?
Options:
A. protein
B. urine
C. glucose
D. mitochondria | D |
Question: Dry soils are relatively unproductive because plants need a sufficient quantity of liquid water to carry out what process?
Options:
A. flowering
B. contraction
C. shrinkage
D. photosynthesis | D |
Question: The vitamins and minerals contained in all of the food we consume are important for all of our organ systems. however, there are certain nutrients that affect this?
Options:
A. bone health
B. mental health
C. abnormal health
D. chain health | A |
Question: What type of plants supplement their mineral nutrition by digesting animals?
Options:
A. carnivorous
B. herbivorous
C. annuals
D. perennials | A |
Question: Daughter cells divide by what?
Options:
A. meiosis
B. mitosis
C. nucleus
D. electrolysis | A |
Question: Phytochromes regulate many plant responses to what?
Options:
A. gravity
B. heat
C. oxygen
D. light | D |
Question: Carbon dioxide molecules consist of a central carbon atom bonded to how many oxygen atoms?
Options:
A. four
B. two
C. three
D. one | B |
Question: Survivorship curves show the distribution of individuals in a population according to what metric?
Options:
A. height
B. weight
C. birth rate
D. age | D |
Question: Electrons are not shared equally between the two atoms in which type of covalent bonds?
Options:
A. polar
B. narrow
C. wide
D. solar | A |
Question: What is above each leaf scar?
Options:
A. stipule scar
B. chambered pitch
C. lenticel
D. an axillary bud | D |
Question: Ultimately, the fluid that is lost from the blood vessels is returned through what system?
Options:
A. urinary
B. lymphatic
C. symptomatic
D. venous | B |
Question: What type energy sources emit fewer or no greenhouse gases?
Options:
A. gas
B. animal
C. renewable
D. fossil | C |
Question: Stars spend most of their lives on the main sequence, fusing hydrogen into what?
Options:
A. nitrogen
B. helium
C. neon
D. carbon | B |
Question: What is a measure of how hot or cold the air is?
Options:
A. temperature
B. variation
C. precipitation
D. relativity | A |
Question: Where are more of an insect's internal organs kept?
Options:
A. the abdomen
B. the chest cavity
C. the head
D. the thorax | A |
Question: What is the measure of kinetic energy of the particles in matter?
Options:
A. friction
B. energy
C. temperature
D. precipitation | C |
Question: What is the name for the tiny air sacs at the end of bronchioles?
Options:
A. ganglion
B. gills
C. vacuoles
D. alveoli | D |
Question: What is the source of most of the energy used?
Options:
A. the Earth
B. the Moon
C. the sun
D. fossil fuels | C |
Question: What flows across the membrane resulting in changes in the membrane potential?
Options:
A. ions
B. neutrons
C. electrons
D. acids | A |
Question: The standard reduction potential can be determined by subtracting the standard reduction potential for the reaction occurring at the anode from the standard reduction potential for the reaction occurring at this?
Options:
A. cathode
B. plasma
C. electrode
D. Spinner | A |
Question: What are proteins made up of?
Options:
A. detected acids
B. lewis acids
C. amino acids
D. atoms acids | C |
Question: What proteins synthesized in cells act as catalysts?
Options:
A. virophages
B. hormones
C. byproducts
D. enzymes | D |
Question: What element is the sun mostly made up of?
Options:
A. hydrogen
B. mercury
C. helium
D. manganese | A |
Question: What shape is the gametophyte in ferns?
Options:
A. rectangular
B. heart-shaped
C. diamond
D. circular | B |
Question: What makes sunsets appear red?
Options:
A. reflection scattering
B. floral scattering
C. wavelength scattering
D. rayleigh scattering | D |
Question: Skeletal and muscular are examples of what type of system?
Options:
A. shell system
B. interior system
C. organ system
D. internal system | C |
Question: What is the process where light bounces back from surfaces that it cannot pass through?
Options:
A. reflection
B. diffraction
C. absorbtion
D. direction | A |
Question: What are butterflies and bees an example of?
Options:
A. parasites
B. pollinators
C. spores
D. species | B |
Question: What are clouds that form on the ground called?
Options:
A. haze
B. smoke
C. fog
D. canopy | C |
Question: What is formed when atoms of different elements bond together?
Options:
A. phenotype compound
B. duality compound
C. univalent compound
D. covalent compound | D |
Question: Where a cell resides, how it appears, and what it does define its what?
Options:
A. minute race
B. slowing rate
C. development fate
D. life cycle | C |
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