prompt stringlengths 51 646 | completion stringclasses 8 values | source stringclasses 3 values |
|---|---|---|
What layer of skin is located right beneath the epidermis?
A. scars
B. humus
C. dermis
D. cusps
Answer: | C | sciq |
Some terrestrial species breathe through their skin and oral cavity because they lack what?
A. nose
B. windpipe
C. mouth
D. lungs
Answer: | D | sciq |
What is the main type of cell in the nervous system called?
A. axon
B. conduction
C. neuron
D. sensory
Answer: | C | sciq |
Many ionic compounds occur as hydrates, compounds that contain specific ratios of loosely bound water molecules, called waters of hydration. waters of hydration can often be removed simply by doing this?
A. cooling
B. observing
C. heating
D. melting
Answer: | C | sciq |
When blood vessels in the head dilate, what kind of severe headache can occur?
A. tension headache
B. migraine
C. malignant
D. chronic headache
Answer: | B | sciq |
Acne and different types of cancer can affect what large organ?
A. lungs
B. brain
C. skin
D. liver
Answer: | C | sciq |
Prokaryotic cells can only regulate gene expression by controlling the amount of what?
A. transcription
B. translation
C. RNA processing
D. folding
Answer: | A | sciq |
Where do oceans absorb gases from?
A. sunlight
B. wind
C. stratosphere
D. atmosphere
Answer: | D | sciq |
Engaging in relatively simple behaviors helps maintain a nearly constant body temperature for organisms classified as what?
A. placoderms
B. endotherms
C. ectotherms
D. photophores
Answer: | C | sciq |
Meningitis is an infection of the membranes that cover the brain and what else?
A. liver
B. umbilical cord
C. spinal cord
D. notochord
Answer: | C | sciq |
What use enzymes to break down foreign matter and dead cells?
A. lysosomes
B. lipids
C. hormones
D. lymphocytes
Answer: | A | sciq |
What is indicated by the ratio of the output force to the input force in a machine?
A. man hours
B. magnetic force
C. momentum
D. mechanical advantage
Answer: | D | sciq |
Glucocorticoids and mineralocorticoids are the two main types of what in humans?
A. hormones
B. corticosteroids
C. metabolites
D. carotenoids
Answer: | B | sciq |
What keeps the earth orbiting the sun?
A. gravity
B. weak nuclear force
C. magnetic force
D. strong nuclear force
Answer: | A | sciq |
How do bees communicate to tell other bees where food is located?
A. mating dance
B. waggle dance
C. wing flapping
D. high pitch noise
Answer: | B | sciq |
Along with nerve tissue, what kind of tissue are lecithins and cephalins important constituents of?
A. brain tissue
B. heart tissue
C. skin tissue
D. lung tissue
Answer: | A | sciq |
Metal detectors used for airport security work on which principle?
A. electricity
B. inductance
C. conductivity
D. inertia
Answer: | B | sciq |
Methanogens in their gut enable what process in cows?
A. regeneration
B. digestion
C. absorption
D. excretion
Answer: | B | sciq |
The skeleton of lampreys is made of what?
A. chitin
B. collagen
C. cartilage
D. ligament
Answer: | C | sciq |
How do amphibians reproduce?
A. sexually
B. biologically
C. asexually
D. they don't
Answer: | A | sciq |
What are scientists called who study the weather and give forecasts?
A. climatologists
B. botanists
C. meteorologists
D. geologists
Answer: | C | sciq |
Autocrine signaling takes place within the same what?
A. tissue type
B. proteins
C. organ
D. cell
Answer: | D | sciq |
Both dna and rna are what type of acids?
A. nucleic acids
B. proteins acids
C. fatty acids
D. synthesize acids
Answer: | A | sciq |
What kind of a resource is soil, for human purposes?
A. nonrenewable resource
B. emanates resource
C. guarana resource
D. renewable resource
Answer: | A | sciq |
A natural resource that is consumed or used up faster than it can be made by nature is termed what?
A. non-renewable
B. fossil fuel
C. renewable
D. energy-inefficient
Answer: | A | sciq |
An electrical motor changes electrical energy into what?
A. mechanical energy
B. chemical energy
C. thermal energy
D. solar energy
Answer: | A | sciq |
What is name for a piece of collagen-rich skin formed after the process of wound healing that differs from normal skin?
A. Sore
B. scar
C. tissue
D. size
Answer: | B | sciq |
Young eutherians complete their embryonic development within what?
A. pollen grains
B. spores
C. ovaries
D. uterus
Answer: | D | sciq |
Nuclear reactors use fission reactions to vaporize water, producing steam to drive a turbine and generate what?
A. oil
B. electricity
C. light
D. fuel
Answer: | B | sciq |
What type of air do plants take in and use?
A. liquid dioxide
B. carbon dioxide
C. oxygen
D. carbon
Answer: | B | sciq |
How long can a large star be on the main sequence stage?
A. 200.4 million years
B. 10 million years
C. 60.11 million years
D. 3 million years
Answer: | B | sciq |
What do you call the pattern of lines formed when light passes through a prism to separate it into the different frequencies of light it contains?
A. prismatic rainbow
B. light emission spectrum
C. atomic emission spectrum
D. kaleidoscope effect
Answer: | C | sciq |
What is the term for a watertight seal between two adjacent animal cells?
A. tight junction
B. placental barrier
C. cell wall
D. cell membrane
Answer: | A | sciq |
What is at the surface of a cell, arranged in similar bilayer?
A. fats
B. eukaryotes
C. phospholipids
D. pigments
Answer: | C | sciq |
Vitamins are organic compounds that are essential in very small amounts for the maintenance of normal what?
A. respiration
B. pigments
C. metabolism
D. calcium
Answer: | C | sciq |
In eukaryotic cells, what divides before the cell itself divides?
A. protons
B. cell wall
C. electrons
D. nucleus
Answer: | D | sciq |
The joint that lies between the radius and the ulna is what kind of joint?
A. hinge joint
B. pivot joint
C. shaft joint
D. socket joint
Answer: | B | sciq |
Because it damages hair cells, what is the most cause of hearing loss in adults?
A. water in the ears
B. exposure to noise
C. ear wax
D. bacteria
Answer: | B | sciq |
What is regulated to ensure that the correct proteins are made?
A. gene expression
B. acids expression
C. variation expression
D. Fat expression
Answer: | A | sciq |
What mirrors diverge light rays and, thus, have a negative focal length?
A. convex
B. diffraction
C. concave
D. curved
Answer: | A | sciq |
During what stage are chromosomes condensed enough to be seen under a microscope?
A. mitosis
B. cytokinesis
C. meiosis
D. epistasis
Answer: | A | sciq |
What is an odorless white solid that is harmless unless consumed in large quantities?
A. carbon chloride
B. sodium chloride
C. Hydrogen
D. oxygen chloride
Answer: | B | sciq |
Melting, sublimation, and evaporation absorb what from their surroundings?
A. vibration
B. cold
C. moisture
D. heat
Answer: | D | sciq |
What is the series of changes in the reproductive system of a mature female that happens monthly?
A. pregnancy
B. urinary cycle
C. menstrual cycle
D. fetal cycle
Answer: | C | sciq |
What is the average number of individuals per unit of area or volume called?
A. crowdedness
B. population count
C. population density
D. population structure
Answer: | C | sciq |
What types of living beings have water vascular systems and unique tube feet?
A. echinoderms
B. diatoms
C. Ducks
D. mollusks
Answer: | A | sciq |
Which two gases make up the bulk of earth's atmosphere?
A. nitrogen and argon
B. carbon and oxygen
C. phosphorus and oxygen
D. nitrogen and oxygen
Answer: | D | sciq |
What is the decayed remains of living organisms called?
A. humus
B. oil
C. plateaus
D. fossils
Answer: | A | sciq |
The motor thus acts as a generator whenever its coil does what?
A. rotates
B. stops
C. revolves
D. oscillates
Answer: | A | sciq |
Norovirus causes the inflammation of the stomach and what else?
A. lungs
B. intestines
C. liver
D. muscles
Answer: | B | sciq |
What forms when tectonic plates move above a hot spot?
A. earthquake chain
B. volcanic system
C. volcanic chain
D. volcanic setting
Answer: | C | sciq |
What is the multicellular diploid stage called?
A. sporophyte
B. blastocyte
C. lymphocyte
D. sporangium
Answer: | A | sciq |
Myopia is commonly called what?
A. farsightedness
B. scoliosis
C. nearsightedness
D. blindness
Answer: | C | sciq |
The prostate gland secretes a fluid that mixes with sperm to help form what?
A. semen
B. testosterone
C. urine
D. hormone
Answer: | A | sciq |
About 95 percent of lipids are absorbed in what organ of the digestive system?
A. stomach
B. kidneys
C. small intestine
D. large intestine
Answer: | C | sciq |
What type of work called occurs when a system pushes back the surroundings against a restraining pressure?
A. contrast work
B. retention work
C. expansion work
D. shape work
Answer: | C | sciq |
In some parts of the world, too much of the sun's harmful uv radiation gets through because of a hole in what layer?
A. thermosphere
B. troposphere
C. ozone
D. mesosphere
Answer: | C | sciq |
What type of animal eats both plants and animals?
A. omnivores
B. carnivores
C. herbivores
D. insectivores
Answer: | A | sciq |
What is the term for the muscular duct through which sperm are propelled?
A. the västerås deferens
B. the vas deferens
C. the glans deferens
D. the glarus deferens
Answer: | B | sciq |
What is the most common cause of cancer?
A. cell mutations
B. technology mutations
C. poor diet
D. smoking
Answer: | A | sciq |
The testes produce what hormone?
A. dopamine
B. insulin
C. estrogen
D. testosterone
Answer: | D | sciq |
Capillaries are narrow-diameter tubes that can fit red blood cells through in single file and are the sites for the exchange of what?
A. nutrients
B. proteins
C. components
D. fluids
Answer: | A | sciq |
Pieces of the cell break off and form a new cell in what type of reproduction that produces genetically identical organisms?
A. Fusion
B. Mitosis
C. fragmentation
D. Meiosis
Answer: | C | sciq |
How do most reptiles produce?
A. occasionally
B. biologically
C. sexually
D. asexually
Answer: | C | sciq |
The minimum amount necessary for self-sustained fission of a given nuclide is called what?
A. its activation energy
B. its critical mass
C. its half-life
D. its molar mass
Answer: | B | sciq |
What are genes that are close together on the same chromosome called?
A. linked genes
B. stored genes
C. infected genes
D. mutated genes
Answer: | A | sciq |
What do neutral atoms have the same number of?
A. gases and protons
B. Measure and electrons
C. electrons and protons
D. toxins and protons
Answer: | C | sciq |
Omnivores are animals that eat both plant- and?
A. liquid diets
B. animal-derived food
C. biofuel
D. recycled food
Answer: | B | sciq |
Bacterial dna is contained in a large, circular strand; this single chromosome is located in a region of the cell called what?
A. amino acid
B. polypeptide
C. the nucleoid
D. nucleic acid
Answer: | C | sciq |
Which primate group generally lives alone?
A. human
B. gorilla
C. orangutan
D. chimpanzee
Answer: | C | sciq |
Carbon and what are the second and third most abundant elements in your body?
A. calcium
B. helium
C. mercury
D. hydrogen
Answer: | D | sciq |
Glucagon and insulin are produced in what organ?
A. hypothalamus
B. thymus
C. thyroid
D. pancreas
Answer: | D | sciq |
Anagen, catagen and telogen are phases in the growth of what, which involves the root and follicle?
A. brain
B. hair
C. teeth
D. bone
Answer: | B | sciq |
What is the scientific term for the dropping of leaves, fruits, and flowers, which led to the naming of an acid thought to play a role in the process?
A. ascorbition
B. abscission
C. affixation
D. ablation
Answer: | B | sciq |
Sudden changes in geologic and climatic conditions can spur what process?
A. cloning
B. evolution
C. generation
D. symbiosis
Answer: | B | sciq |
What is the fluid that carries sperm through the urethra and out of the body, and provides it with nutrients?
A. bacteria
B. semen
C. blood
D. yeast
Answer: | B | sciq |
In what unit is frequency measured in?
A. centimeter
B. gram
C. mole
D. hertz
Answer: | D | sciq |
Mixtures of materials called alloys contain at least one of what type of material?
A. liquid
B. coal
C. steel
D. metal
Answer: | D | sciq |
The challenge of techniques used for proteomic analyses is the difficulty in detecting small quantities of what?
A. proteins
B. acids
C. particles
D. bacteria
Answer: | A | sciq |
What type of gas is delivered to homes to use for cooking and heating?
A. compounded gas
B. fluid gas
C. nuetralized gas
D. natural gas
Answer: | D | sciq |
Chewing a bite of bread mixes it with what and facilitates its chemical breakdown?
A. saliva
B. interstitial fluid
C. calcium
D. chyme
Answer: | A | sciq |
What is occurring at an alarming rate as a result of global climate change and the constant melting point of ice?
A. glacial movement
B. glacial hardening
C. glacial formation
D. glacier melt
Answer: | D | sciq |
What triggers the fight-or-flight response?
A. epinephrine
B. amphetamine
C. respiration
D. endorphine
Answer: | A | sciq |
What is the term for the force applied to a wheel and axle?
A. momentum
B. velocity force
C. output force
D. input force
Answer: | D | sciq |
Magnetic resonance imaging devices use what to cool the superconducting magnets?
A. fluorocarbons
B. dry ice
C. antifreeze
D. liquid nitrogen
Answer: | D | sciq |
Water moving up the plane and evaporating from the leaves is a process known as what?
A. sublimation
B. evaporation
C. propagation
D. transpiration
Answer: | D | sciq |
How many bones fuse together to form the cranium?
A. 6
B. 8
C. 3
D. 8
Answer: | B | sciq |
What is the amount of moisture in the atmosphere?
A. heat
B. humidity
C. static
D. mixture
Answer: | B | sciq |
What heisenberg principle imposes ultimate limits on what is knowable in science?
A. uncertainty principle
B. vacuum principle
C. impossibility principle
D. certainty principle
Answer: | A | sciq |
Narrowing of the arterioles causes an increase of what upstream in the arteries?
A. blood pressure
B. white blood cells
C. red blood cells
D. heart beat
Answer: | A | sciq |
What are double sugars called?
A. monosaccharides
B. sodiums
C. disaccharides
D. silicates
Answer: | C | sciq |
Cells that undergo cell division continue to have their telomeres shortened, thus telomere shortening is associated with what life process?
A. reproduction
B. aging
C. reducing
D. metabolism
Answer: | B | sciq |
Which two basic parts of a plant develop tough outer coatings to protect the plant from the environment?
A. roots and leaves
B. leaves and stems
C. bark and stems
D. stems and stalks
Answer: | B | sciq |
What is the name for a kind of animal that eats a mix of plant and animal foods.
A. an herbivore
B. an smorgasbord
C. an omnivore
D. a carnivore
Answer: | C | sciq |
Oxygenated air, taken in during inhalation, diffuses across the surface of the lungs into the what?
A. brain
B. proteins
C. bloodstream
D. liver
Answer: | C | sciq |
What substances, which serve as catalysts, are involved in most of the chemical reactions that take place in organisms?
A. carbohydrates
B. proteins
C. vitamins
D. enzymes
Answer: | D | sciq |
What is the type of plant called when its leaves seasonally turn color and fall off?
A. conifer
B. verdant plant
C. evergreen
D. deciduous plant
Answer: | D | sciq |
Besides the endocrine system, what other system exerts control over all the organ systems of the body?
A. skeleton system
B. abnormal system
C. nervous system
D. circulatory system
Answer: | C | sciq |
What is the area where an electron is most likely to be found called?
A. neutron
B. orbital
C. neucleus
D. proton
Answer: | B | sciq |
The part of the ecosystem required by a particular species is endangered when human activity threatens loss of what?
A. primary speciation
B. primary producers
C. habitat
D. biodiversity
Answer: | C | sciq |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.