prompt stringlengths 51 646 | completion stringclasses 8 values | source stringclasses 3 values |
|---|---|---|
What is the stored food in a seed called?
A. membrane
B. endosperm
C. larval
D. pollin
Answer: | B | sciq |
Zinc is more easily oxidized than iron because zinc has a lower reduction potential. since zinc has a lower reduction potential, it is a more what?
A. active metal
B. Trap metal
C. much metal
D. usually metal
Answer: | A | sciq |
What is controlled by both genes and experiences in a given envionment?
A. learned behaviors
B. reflexes
C. instincts
D. animal behaviors
Answer: | D | sciq |
What tells you how much of the food you should eat to get the nutrients listed on the label?
A. serving size
B. longer size
C. regular size
D. scoop size
Answer: | A | sciq |
What are used to write nuclear equations for radioactive decay?
A. trigonometric symbols
B. radioactive symbols
C. nuclear symbols
D. critical symbols
Answer: | C | sciq |
What is controlled by regulatory proteins that bind to regulatory elements on dna?
A. substance transcription
B. mRNA
C. gene transcription
D. amino acids
Answer: | C | sciq |
Boron only occurs naturally in compounds with what element?
A. nitrogen
B. oxygen
C. carbon
D. helium
Answer: | B | sciq |
What organ systems link exchange surfaces with cells throughout the body?
A. circulatory
B. nervous
C. pulmonary
D. vascular
Answer: | A | sciq |
What occurs when the immune system attacks a harmless substance that enters the body from the outside?
A. nausea
B. panic attack
C. plague
D. allergy
Answer: | D | sciq |
Fertilization is the union of a sperm and egg, resulting in the formation of what?
A. a bacteriophage
B. a zygote
C. a cytoplasm
D. a nuclei
Answer: | B | sciq |
The plants alternation between haploid and diploud generations allow it to do what?
A. reproduce sexually and autonomously
B. reproduce asexually and sexually
C. reproduce asexually and biologically
D. reproduce asexually and simultaneously
Answer: | B | sciq |
Most of the chemical reactions in the body are facilitated by what?
A. proteins
B. enzymes
C. carbohydrates
D. vitamins
Answer: | B | sciq |
What is the termination of a pregnancy in progress called?
A. abortion
B. contraception
C. miscarriage
D. delivery
Answer: | A | sciq |
Cutting down on the use of chemical fertilizers and preserving wetlands are ways to prevent what "unlivable" regions in bodies of water?
A. dead zones
B. fresh zones
C. inhabitable zones
D. hostile zones
Answer: | A | sciq |
Which muscles allow your fingers to also make precise movements for actions?
A. paired muscles
B. intrinsic muscles
C. fine movement muscles
D. motoric muscles
Answer: | B | sciq |
Testing what usually requires making observations or performing experiments?
A. conclusion
B. homeostasis
C. variables
D. hypothesis
Answer: | D | sciq |
This sharing of electrons produces what is known as a covalent bond. covalent bonds are ~20 to 50 times stronger than what?
A. Mendelian systems
B. Newton's third law
C. gravitational pull
D. van der waals interactions
Answer: | D | sciq |
Water molecules move about continuously due to what type of energy?
A. kinetic
B. seismic
C. optical
D. potential
Answer: | A | sciq |
A small scale version of what type of map displays individual rock units?
A. polar map
B. geologic map
C. geographic map
D. seismic map
Answer: | B | sciq |
What is defined as a change in the inherited traits of organisms over time?
A. divergence
B. evolution
C. generation
D. variation
Answer: | B | sciq |
What hormone, which is associated with luteinizing hormone and male sexuality, helps bring about physical changes in puberty?
A. epinephrine
B. steroids
C. estrogen
D. testosterone
Answer: | D | sciq |
Where do angiosperms produce seeds in flowers?
A. germs
B. testes
C. cones
D. ovaries
Answer: | D | sciq |
In order to create food, what do photosynthetic protists use?
A. decayed matter
B. thermal energy
C. light energy
D. hydrocarbons
Answer: | C | sciq |
What type of vertebrates are birds?
A. exothermic
B. endothermic tetrapod
C. invertebrates
D. epidermal tetrapod
Answer: | B | sciq |
What type of ions do ionic compounds contain?
A. positive and charged
B. positive and negative
C. regular and irregular
D. negative and neutal
Answer: | B | sciq |
All living things need air and this to survive?
A. ecosystem
B. habitat
C. stimuli
D. water
Answer: | D | sciq |
The cells of all eukarya have a what?
A. necrosis
B. epidermis
C. chloroplast
D. nucleus
Answer: | D | sciq |
What type of plate boundaries produce huge mountain ranges in the ocean basin?
A. tractional
B. divergent
C. parallel
D. coherent
Answer: | B | sciq |
Interstitial carbides are produced by the reaction of most transition metals at high temperatures with what element?
A. hydrogen
B. nitrogen
C. carbon
D. oxygen
Answer: | C | sciq |
Fungus-like protist saprobes play what role in a food chain and are specialized to absorb nutrients from nonliving organic matter, such as dead organisms or their wastes?
A. decomposers
B. fluxes
C. aphids
D. Soil
Answer: | A | sciq |
What are the sites of protein synthesis or assembly?
A. chromosomes
B. plasma
C. chloroplasts
D. ribosomes
Answer: | D | sciq |
What must replicate in the cell cycle before meiosis i takes place?
A. dna
B. sperm
C. meiotic fluid
D. cell walls
Answer: | A | sciq |
What phenomenon is primarily the result of plate tectonic motions?
A. earthquake
B. tsunamis
C. eruption
D. volcanoes
Answer: | A | sciq |
What is a group of neuron cell bodies in the periphery called?
A. gangism
B. crystals
C. ganglion
D. organism
Answer: | C | sciq |
Where does most of our food come from?
A. microbes
B. gymnosperms
C. lichen
D. angiosperms
Answer: | D | sciq |
Gases are most ideal at high temperature and what pressure?
A. absolute
B. low
C. high
D. stable
Answer: | B | sciq |
Hard igneous rocks and easily dissolved sedimentary rocks respond very differently to what natural force?
A. evaporation
B. sunlight
C. gravity
D. weathering
Answer: | D | sciq |
A diet rich in calcium and what vitamin may reduce the risk of osteoporosis and related bone fractures?
A. niacin
B. vitamin d
C. vitamin C
D. vitamin A
Answer: | B | sciq |
How many people die from air pollution each year?
A. 17 million
B. 22 million
C. 5 million
D. 14 million
Answer: | B | sciq |
What substances serve as catalysts in most of the biochemical reactions that take place in organisms?
A. iseotrops
B. hormones
C. enzymes
D. carbohydrates
Answer: | C | sciq |
The formation of an amalgam allows the metal to react with what?
A. helium and oxygen
B. air and water
C. cloth and plastic
D. blood and sweat
Answer: | B | sciq |
A pulley changes the direction of the force t exerted by the cord without changing its what?
A. longitude
B. magnitude
C. latitude
D. position
Answer: | B | sciq |
What is the name of the small bumps that contain taste buds and covers the tongue?
A. palatine tonsils
B. cuticle
C. lingual tonsils
D. papillae
Answer: | D | sciq |
In the absence of air resistance, all falling objects accelerate at the same rate due to what force?
A. velocity
B. motion
C. gravity
D. weight
Answer: | C | sciq |
The ability for a plasma membrane to only allow certain molecules in or out of the cell is referred to as what?
A. selective permeability
B. periodic permeability
C. total permeability
D. moderate permeability
Answer: | A | sciq |
In the presence of oxygen, hydrogen can interact to make what?
A. carbon
B. acid
C. helium
D. water
Answer: | D | sciq |
What galaxy is our solar system a part of?
A. Andromeda
B. milky way
C. Bode's Galaxy
D. Centaurus
Answer: | B | sciq |
The angle at which light bends when it enters a different medium is known as what?
A. refraction
B. resonance
C. bounce
D. frequency
Answer: | A | sciq |
Whether the organism is a bacterium, plant, or animal, all living things access energy by breaking down these?
A. carbohydrate molecules
B. protein molecules
C. lipid molecules
D. oxygen molecules
Answer: | A | sciq |
Increasing the temperature of n2 molecules increases what energy of motion?
A. emotional energy
B. residual energy
C. compression energy
D. kinetic energy
Answer: | D | sciq |
Which radio frequency should you listen to if you want less noise?
A. fm
B. cb
C. wave
D. am
Answer: | A | sciq |
What form of radiation is the energy emitted by the sun?
A. magnetic
B. thermal
C. seismic
D. electromagnetic
Answer: | D | sciq |
What is the suns innermost layer called?
A. flare
B. core
C. solar
D. surface
Answer: | B | sciq |
A growth spurt requires constant divisions of what?
A. seeds
B. proteins
C. hairs
D. cells
Answer: | D | sciq |
What's the term for the gradual progression from simple plants to larger more complex ones in an area?
A. pattern progression
B. primary succession
C. complex progression
D. primary pattern
Answer: | B | sciq |
Fungi may form mutualistic relationships with plants, algae, cyanobacteria, and what?
A. animals
B. plants
C. eggs
D. farmers
Answer: | A | sciq |
Which cycle tracks the flow of nitrogen through an ecosystem?
A. nitrogen reaction
B. life cycle
C. water cycle
D. nitrogen cycle
Answer: | D | sciq |
What consequence of a tornado is responsible for most injuries and deaths?
A. falling debris
B. touring debris
C. flying debris
D. catching debris
Answer: | C | sciq |
What are the only truly innate behaviors in humans called?
A. feats
B. automatic movements
C. reflexes
D. flinches
Answer: | C | sciq |
What happens to the density of air as the altitude decreases?
A. decreases
B. remains the same
C. increases
D. multiplies
Answer: | A | sciq |
How do some animals change their depth?
A. by changing their density
B. mass migration
C. metamorphosis
D. spontaneous mutations
Answer: | A | sciq |
What phenomenon is crowding out other species and making all the other causes of extinction worse?
A. migration
B. human overpopulation
C. human suburbanization
D. climate change
Answer: | B | sciq |
Dessication is an extreme and usually fatal form of what in animals?
A. dehydration
B. depletion
C. starvation
D. diarrhea
Answer: | A | sciq |
Internal and external forms of what life process occur as simple diffusion due to a partial pressure gradient?
A. photosynthesis
B. respiration
C. metabolism
D. reproduction
Answer: | B | sciq |
The fossil record shows that this type of event is followed by the evolution of new species to fill the habitats where old species lived?
A. moderate extinction
B. minor extinction
C. mass extinction
D. formation extinction
Answer: | C | sciq |
Soluble minerals and clays accumulate in what soil layer, allowing it to hold more water?
A. topsoil
B. subsurface
C. subsoil
D. silt
Answer: | C | sciq |
What is the common word for potential difference in a circuit?
A. velocity
B. watt
C. frequency
D. voltage
Answer: | D | sciq |
How many chambers does the stomach of a crocodile have?
A. ten
B. six
C. three
D. two
Answer: | D | sciq |
When populations get close to the carrying capacity, what happens to growth?
A. slows
B. spikes
C. halts
D. dies
Answer: | A | sciq |
Although air can transfer heat rapidly by convection, it is a poor conductor and thus a good what?
A. insulator
B. transporter
C. magnet
D. absorber
Answer: | A | sciq |
Most plants grow continuously, except for what periods?
A. dormant
B. abnormal
C. mutant
D. winter
Answer: | A | sciq |
What man-made devices in space are used to observe the earth's surface?
A. crystals
B. satellites
C. telescopes
D. sensors
Answer: | B | sciq |
Carboxylic acids are weak acids, meaning they are not 100% ionized in what?
A. liquid
B. ethanol
C. water
D. air
Answer: | C | sciq |
An endocrine disease usually involves the secretion of too much or not enough of what?
A. metabolite
B. enzyme
C. sweat
D. hormone
Answer: | D | sciq |
In experiments with garden peas, austrian monk gregor mendel described the basic patterns of what?
A. behavior
B. color
C. inheritance
D. preference
Answer: | C | sciq |
Nutrition and diet affect your metabolism. more energy is required to break down fats and proteins than this?
A. minerals
B. electrolytes
C. carbohydrates
D. vitamins
Answer: | C | sciq |
What are unsaturated hydrocarbons with at least one double bond between carbon atoms called?
A. peptides
B. alkenes
C. amines
D. enzymes
Answer: | B | sciq |
What is the opposite of melting?
A. freezing
B. liquidation
C. evaporation
D. compression
Answer: | A | sciq |
A unique characteristic of mammals is the ability to chew, this happens by the temporalis and the masseter allowing what?
A. side-to-side movement
B. Grinding
C. Up and down
D. Bakward and forward
Answer: | A | sciq |
Most of the pathogens that cause stis enter the body through mucous membranes of which organs?
A. reproductive organs
B. stomach
C. kidneys
D. eyes
Answer: | A | sciq |
The activation of what kind of buds induces branching?
A. arterial buds
B. leafy buds
C. lymphatic buds
D. axillary buds
Answer: | D | sciq |
Sexual reproduction involves haploid gametes and produces a diploid zygote through what process?
A. sedimentation
B. vivisection
C. infection
D. fertilization
Answer: | D | sciq |
All alkanes are composed of carbon and hydrogen atoms, and have similar bonds, structures, and formulas; noncyclic alkanes all have a formula of cnh2n+2. the number of carbon atoms present in an alkane has what?
A. done limit
B. crippling limit
C. no limit
D. such limit
Answer: | C | sciq |
What percentage of men suffer from some form of erectile dysfunction by age 40?
A. approximately 40 percent
B. approximately 10 percent
C. approximately 60 percent
D. approximately 80 percent
Answer: | A | sciq |
What secures together immovable joints and prevents them from moving?
A. dense cartilage
B. dense collagen
C. light cartilage
D. light collagen
Answer: | B | sciq |
Transform faults are the site of massive what?
A. tornadoes
B. earthquakes
C. storms
D. vibrations
Answer: | B | sciq |
When water goes above and below its freezing point, what rock-breaking phenomenon is common?
A. ice locking
B. ice wedging
C. ice inverting
D. ice crushing
Answer: | B | sciq |
The diatoms are unicellular photosynthetic protists that encase themselves in intricately patterned, glassy cell walls composed of silicon dioxide in a matrix of organic particles. these protists are a component of freshwater and these?
A. land plankton
B. marine plankton
C. waste plankton
D. source plankton
Answer: | B | sciq |
What type of reactions form compounds?
A. consumption reactions
B. mineral reactions
C. physical reactions
D. chemical reactions
Answer: | D | sciq |
Millions of years ago, plants used energy from the sun to form what?
A. greenhouse gases
B. fossil fuels
C. carbon compounds
D. evolution
Answer: | C | sciq |
What is the term for the process in which living things with beneficial traits produce more offspring than others do?
A. natural survival
B. natural selection
C. natural variety
D. natural process
Answer: | B | sciq |
In a chemical reaction, the amounts of reactants and products will be constant when what state is attained?
A. saturation
B. homogeneity
C. equilibrium
D. peak
Answer: | C | sciq |
What protects a developing flower while it is still a bud?
A. sepals
B. petals
C. lobes
D. shell
Answer: | A | sciq |
What is the term for the force of attraction between things that have a mass?
A. motion
B. gravity
C. weight
D. magnetism
Answer: | B | sciq |
What are the long, thin protein extensions in most prokaryotic cells called?
A. flagellum
B. analyte
C. neutrons
D. cingulum
Answer: | A | sciq |
Dialysis is a treatment for failure of what organs?
A. lungs
B. liver
C. spleen
D. kidneys
Answer: | D | sciq |
What preventive measure can protect even young children against diseases such as viral meningitis?
A. vaccination
B. malnutrition
C. surgical intervention
D. nutrition
Answer: | A | sciq |
Renal plasma flow equals the blood flow per minute times the what?
A. hemoglobin
B. erythrocytes
C. hematocrit
D. leukocytes
Answer: | C | sciq |
What does lattice energy of an ionic solid measure the strength of?
A. electrons
B. bonds
C. metals
D. atoms
Answer: | B | sciq |
How many different types of taste can be detected by taste buds?
A. five
B. hundreds
C. two
D. three
Answer: | A | sciq |
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