prompt stringlengths 51 646 | completion stringclasses 8 values | source stringclasses 3 values |
|---|---|---|
What characteristic of particles determines how they are carried by flowing water?
A. density
B. texture
C. color
D. size
Answer: | D | sciq |
What term refers to something supplied by nature that helps support life?
A. existing resource
B. natural resource
C. simple resource
D. free resource
Answer: | B | sciq |
What is the shape of the orbits that planets make around the sun?
A. conical
B. elliptical
C. variable
D. elongated
Answer: | B | sciq |
What are chlamydia, gonorrhea, and syphilis an example of?
A. metabolic disorders
B. viral stis
C. genetic diseases
D. bacterial stis
Answer: | D | sciq |
What organism are resistant to freezing and drying and also are metabolically inactive?
A. spirogyra
B. zygosporangia
C. trichina
D. giardia
Answer: | B | sciq |
What is produced during a condensation reaction?
A. wind
B. rain
C. water
D. fire
Answer: | C | sciq |
What force pulls objects toward the center of the earth?
A. momentum
B. centrifugal force
C. kinetic energy
D. gravity
Answer: | D | sciq |
Where are protons and neutrons located?
A. outside the nucleus
B. secondary nucleus
C. central nucleus
D. orbitals
Answer: | C | sciq |
What is a measurement of the amount of variation of the species in a given area called?
A. ecosystem
B. biodiversity
C. population
D. degradation
Answer: | B | sciq |
Deleting or inserting a nitrogen base causes what?
A. a placentation mutation
B. a frameshift mutation
C. a degenerative mutation
D. a photoinhibition mutation
Answer: | B | sciq |
What are the chemical messengers used to communicate between cells?
A. peptides
B. neurons
C. hormones
D. membranes
Answer: | C | sciq |
Graphite and diamond both are made from carbon. what makes diamonds so hard?
A. strong metallic network
B. strong light network
C. strong atomic network
D. weak atomic network
Answer: | C | sciq |
The paranasal sinuses are hollow, air-filled spaces located within certain bones of the skull. all of the sinuses communicate with the nasal cavity (paranasal = “next to nasal cavity”) and are lined with this?
A. oral mucosa
B. respiration mucosa
C. nasal mucosa
D. fluid mucosa
Answer: | C | sciq |
What determines the strength of a base when dissolved in water?
A. amount of hydroxide ions produced
B. saline content
C. pH level
D. amount of phosphorus ions produced
Answer: | A | sciq |
What is the low level of radiation that occurs naturally in the environment called?
A. consequence radiation
B. background radiation
C. temperature radiation
D. neon radiation
Answer: | B | sciq |
Varicella zoster virus causes what two illnesses?
A. syphilis and lyme
B. german measles and flu
C. flu and shingles
D. chicken pox and shingles
Answer: | D | sciq |
The urethra transports urine from what organ to the outside of the body for disposal?
A. bladder
B. brain
C. heart
D. lungs
Answer: | A | sciq |
Magnetite crystals in lava typically point to what geographic location?
A. magnetic north pole
B. magnetic south pole
C. the equator
D. geographic north pole
Answer: | A | sciq |
Liquids that mix with water in all proportions are usually polar substances or substances that form these?
A. compressed bonds
B. hydrogen bonds
C. atmospheric bonds
D. silicon bonds
Answer: | B | sciq |
Lattice energy cannot be measured directly. what is its calculation based on?
A. change in temperature
B. measured energy changes
C. microscopic inspection
D. chemical reactions
Answer: | B | sciq |
What process provides over 99% of the energy supply for life on earth?
A. Carbon
B. photosynthesis
C. gases
D. nutrients
Answer: | B | sciq |
What type of animal are most reptiles in regards to diet?
A. omnivores
B. carnivores
C. herbivores
D. arthropods
Answer: | B | sciq |
Because of their reactivity, we do not find most representative metals as free elements where?
A. in nature
B. in the atomospher
C. underground
D. in water
Answer: | A | sciq |
Two important concepts, niche and habitat, are associated with what?
A. ecosystem
B. plant
C. natural selection
D. water
Answer: | A | sciq |
When does diseases like alzheimer's become more common?
A. i-40 age
B. toddler
C. old age
D. teenager
Answer: | C | sciq |
What is a fibrocartilaginous pad that fills the gap between adjacent vertebral bodies?
A. subsidence disc
B. Back Disk
C. unidirectional disc
D. intervertebral disc
Answer: | D | sciq |
What organic catalysts work by lowering the activation energy needed to start biochemical reactions?
A. carbohydrates
B. hormones
C. glucose
D. enzymes
Answer: | D | sciq |
What structure supports the body, protects internal organs, produces blood cells, and maintains mineral homeostasis?
A. fossil
B. skeleton
C. cuticle
D. skin
Answer: | B | sciq |
When vertebrate animals metabolize ammonia what is the primary byproduct that is produced?
A. carbon monoxide
B. urea
C. proteins
D. dioxide
Answer: | B | sciq |
Which process involves solvent separation on a solid medium?
A. chromatography
B. affinity
C. resonance
D. substration
Answer: | A | sciq |
Plasmodesmata and gap junctions are channels between adjacent cells of what respective types?
A. healthy and sick
B. plant and animal
C. plant and fungus
D. new and old
Answer: | B | sciq |
Natural gas burns cleaner and produces less carbon dioxide than fuels of what type?
A. biofuels
B. renewable fuels
C. solar energy
D. fossil fuels
Answer: | D | sciq |
What are the simplest types of carbon-based compounds?
A. particles
B. Microbes
C. Cells
D. hydrocarbons
Answer: | D | sciq |
What process moves food through the esophagus no matter which position the body is in?
A. homeostasis
B. mastication
C. peristalsis
D. proteolysis
Answer: | C | sciq |
The female reproductive organs include the ovaries, fallopian tubes, uterus, and what?
A. bladder
B. womb
C. intestines
D. vagina
Answer: | D | sciq |
What do offsprings obtain from their parents in what is called, inheritance?
A. mutations
B. attributes
C. variations
D. characteristics
Answer: | D | sciq |
Warming up your body before a workout does what to the blood flow?
A. stops it
B. reduces it
C. minimizes it
D. increases it
Answer: | D | sciq |
What is a substance that increases the hydrogen ion concentration of a solution?
A. base
B. sulfur
C. carbon
D. acid
Answer: | D | sciq |
Scientists ask questions, and then make detailed observations to try to ask more specific questions, in order to develop what?
A. theories
B. Tests
C. hypothesis
D. suggests
Answer: | C | sciq |
What is the main difference between prokaryotic or eukaryotic cells ?
A. the presence of a Golgi Apparatus
B. the presence of a nucleus
C. the type of metabolic waste
D. the presence of cell walls
Answer: | B | sciq |
Supercontinents have formed at least how many times in earth history?
A. two
B. nine
C. five
D. twenty
Answer: | C | sciq |
How are layers of the atmosphere divided?
A. air gradients
B. temperature gradients
C. density gradients
D. color gradients
Answer: | B | sciq |
What term is used to describe molecules that contain carbon-nitrogen bonds?
A. amines
B. nitrites
C. ions
D. compounds
Answer: | A | sciq |
Birds have a flow-through respiratory system in which air flows unidirectionally from the posterior sacs into the lungs, then into these?
A. anterior air sacs
B. alveoli
C. posterior bronchi
D. gills
Answer: | A | sciq |
What are convection currents that occur far below the surface of the ocean called?
A. flat currents
B. waves
C. deep currents
D. subsequent currents
Answer: | C | sciq |
Cations are attracted to anions, which are ions with what charge?
A. similar
B. positive
C. negative
D. neutral
Answer: | C | sciq |
A non-bony skeleton that forms outside of the body is known as a what?
A. endoskeleton
B. excitoskeleton
C. exoskeleton
D. exoplate
Answer: | C | sciq |
The vagina connects to which internal organ?
A. artery
B. valves
C. uterus
D. ovaries
Answer: | C | sciq |
What is the measure of electric current?
A. watts
B. ampheres
C. volts
D. intensity
Answer: | B | sciq |
Name a passageway that is shared with the digestive system.
A. esophagus
B. larynx
C. trachea
D. pharynx
Answer: | D | sciq |
What substances function as a long-term energy store in the human body and possess long carbon chains that prevent dissolving in water?
A. hydrocarbons
B. triglycerides
C. steroids
D. nanoparticles
Answer: | B | sciq |
Thermal, radiant, electrical, nuclear, and chemical are all types of what?
A. energy
B. fuel
C. fuel
D. heating
Answer: | A | sciq |
Coronary arteries ans small in what?
A. diameter
B. density
C. length
D. height
Answer: | A | sciq |
What occurs when a substance reacts quickly with oxygen?
A. convection
B. combustion reaction
C. catalytic conversion
D. oxidation
Answer: | B | sciq |
What are the two basic types of competition called?
A. exploitative and beneficial
B. interference and interaction
C. weak and strong
D. instraspecifc and interspecific
Answer: | D | sciq |
Algae are much simpler than protozoa. they are aquatic and contain this?
A. cloning factor
B. chlorophyll
C. testes
D. sporozoa
Answer: | B | sciq |
What is a gram stain used to identify ?
A. different types of bacteria
B. different types of liquids
C. radioactivity
D. acids or bases
Answer: | A | sciq |
Burning gas to run our cars is an example of how human activity is contributing to what global event?
A. carbon change
B. metamorphic change
C. ozone change
D. climate change
Answer: | D | sciq |
The periodic table of elements is divided into what?
A. patterns
B. squares
C. spheres
D. groups
Answer: | B | sciq |
Wave amplitude of a transverse wave is the difference in height between what and the resting position?
A. a magnitude
B. a valley
C. a crest
D. a cascade
Answer: | C | sciq |
What is secreted before ejaculation to neutralize acidic urine remaining in the urethra?
A. pre-cum
B. clear mucus
C. semen
D. sperm
Answer: | B | sciq |
Because conifers carry both male and female sporophylls on the same mature sporophyte, they are considered what type of plant?
A. dioecious
B. monoecious
C. siliceous
D. bioecious
Answer: | B | sciq |
Who lack some of the defining traits of chordates?
A. Childern
B. Adult Mammals
C. adult humans
D. Reptiles
Answer: | C | sciq |
What does convection within the earth's mantel cause?
A. microorganisms to move
B. volcanos
C. plates to move
D. hurricanes
Answer: | C | sciq |
Autoimmunity can develop with time, and its causes may be rooted in this?
A. resistance
B. molecular mimicry
C. spontaneous mutation
D. inheritance
Answer: | B | sciq |
Why does warm air rise higher in the troposphere?
A. It contains hydrogen
B. it is less flourishing than cool air
C. it is more dense than cool air
D. it is less dense than cool air
Answer: | D | sciq |
Getting the same result when an experiment is repeated is called what?
A. initiation
B. mutation
C. replication
D. repetition
Answer: | C | sciq |
Some membranes have what kind of surfaces exposed to the cytoplasm?
A. outer
B. bilayer
C. hydrophobic
D. obstructionary
Answer: | C | sciq |
Plants and fungi cells have what basic cell structure, which animals do not have?
A. Cytoskeleton
B. cell wall
C. Cell Membrane
D. Lysosomes
Answer: | B | sciq |
The way in which the sun produces light is called what?
A. rays
B. tumescence
C. photosynthesis
D. incandescence
Answer: | D | sciq |
What kind of light bulb contains a thin wire filament made of tungsten that gets hot and glows?
A. fluorescent
B. incandescent
C. LED
D. black light
Answer: | B | sciq |
What do you call a mixture in which some particles settle out of it when it is left standing?
A. suspension
B. alloy
C. emulsion
D. homogenous
Answer: | A | sciq |
What do you call the process of a solid becoming a liquid?
A. vaporizing
B. melting
C. freezing
D. boiling
Answer: | B | sciq |
Once a plant cell becomes specialized, what can they no longer do?
A. cellular respiration
B. osmosis
C. divide
D. photosynthesis
Answer: | C | sciq |
The hardest natural substance, diamond is a form of what element?
A. hydrogen
B. zirconium
C. zenon
D. carbon
Answer: | D | sciq |
Much of what type of radiation that strikes the planet is reflected back into space?
A. magentic radiation
B. solar radiation
C. microwaves
D. gamma rays
Answer: | B | sciq |
What particles are formed from a neutron in beta decay?
A. electron and a proton
B. mucus and a proton
C. atom and proton
D. rust and proton
Answer: | A | sciq |
What class of acids do carboxylic acids fall under?
A. hydrochloric acids
B. inorganic acids
C. carbolic acids
D. organic acids
Answer: | D | sciq |
Plants can absorb inorganic nutrients and water through their root system, and what gas from the environment?
A. nitrogen dioxide
B. chemical dioxide
C. carbon dioxide
D. hydrogen dioxide
Answer: | C | sciq |
Giardia is an example of a protozoa that uses flagella for what purpose?
A. movement
B. nutrients
C. reproduction
D. light
Answer: | A | sciq |
Nearly all earthquakes occur where?
A. plate boundaries
B. plate centers
C. in large cities
D. in Asia
Answer: | A | sciq |
Conotoxins released by certain marine snails can bring about paralysis in humans, indicating that this toxin attacks what system?
A. cerebral
B. neurological
C. cardiovascular
D. circulatory
Answer: | B | sciq |
What is the second largest planet in the solar system?
A. saturn
B. Mars
C. Venus
D. jupiter
Answer: | A | sciq |
Fruit comes from the ovaries of what types of plants?
A. sprouting
B. deciduous
C. perennial
D. flowering
Answer: | D | sciq |
Resistors connected end to end are said to be in what?
A. parallel
B. groups
C. series
D. lines
Answer: | C | sciq |
Molar mass is equal to density multiplied by what?
A. molar weight
B. molar energy
C. molar volume
D. molar gravity
Answer: | C | sciq |
What plastid makes and stores other pigments?
A. pores
B. pores
C. chromoplasts
D. sporozoans
Answer: | C | sciq |
What effect causes global winds to blow on a diagonal over the earth's surface?
A. centrifugal effect
B. resonant effect
C. coriolis effect
D. dopler effect
Answer: | C | sciq |
When members of the same species compete for the same resources, it is called what?
A. intraspecific competition
B. extinction
C. natural selection
D. interspecies competition
Answer: | A | sciq |
Antibiotics only target prokaryotic cells - they do not affect fungi, which are not prokaryotic, but instead what?
A. chloroplasts
B. eukaryotic
C. mammals
D. plants
Answer: | B | sciq |
What do bees carry from one plant to another to facilitate plant growth and development?
A. pollen
B. nutrients
C. fungi
D. spores
Answer: | A | sciq |
Why is the drift velocity negligible?
A. many free charges
B. shows free charges
C. less free charges
D. need free charges
Answer: | A | sciq |
Instruments that measure the angle of the slope of a volcano are called what?
A. angle meters
B. tilt meters
C. aberration meters
D. velocity meters
Answer: | B | sciq |
What is the term for preserved remains or traces of organisms that lived in the past?
A. remains
B. bones
C. deposits
D. fossils
Answer: | D | sciq |
Birds flying thousands of miles south in the winter, then returning to their homes in spring, is a familiar example of what?
A. hibernation
B. emigration
C. migration
D. evacuation
Answer: | C | sciq |
The hydration of what is what makes many alcohols?
A. enzymes
B. alkenes
C. malts
D. lipids
Answer: | B | sciq |
What causes oxides to decompose?
A. acidity
B. humidity
C. precipitation
D. heat
Answer: | D | sciq |
With codominance, both alleles are expressed equally in what?
A. gametes
B. heterozygotes
C. homozygotes
D. prokaryotes
Answer: | B | sciq |
When hit from behind in a car crash, a passenger can suffer a neck injury called what?
A. whiplash
B. inflammation
C. twisted neck
D. necklash
Answer: | A | sciq |
When a species always migrates, what is this type of migration called?
A. emigration
B. genus migration
C. mass migration
D. obligate migration
Answer: | D | sciq |
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