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. mouth
B. windpipe
C. lungs
D. nose
Answer: | C | sciq |
What is the main type of cell in the nervous system called?
A. neuron
B. conduction
C. axon
D. sensory
Answer: | A | 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. melting
B. heating
C. cooling
D. observing
Answer: | B | sciq |
When blood vessels in the head dilate, what kind of severe headache can occur?
A. tension headache
B. chronic headache
C. migraine
D. malignant
Answer: | C | sciq |
Acne and different types of cancer can affect what large organ?
A. brain
B. liver
C. skin
D. lungs
Answer: | C | sciq |
Prokaryotic cells can only regulate gene expression by controlling the amount of what?
A. RNA processing
B. translation
C. folding
D. transcription
Answer: | D | sciq |
Where do oceans absorb gases from?
A. atmosphere
B. sunlight
C. stratosphere
D. wind
Answer: | A | sciq |
Engaging in relatively simple behaviors helps maintain a nearly constant body temperature for organisms classified as what?
A. placoderms
B. endotherms
C. photophores
D. ectotherms
Answer: | D | sciq |
Meningitis is an infection of the membranes that cover the brain and what else?
A. umbilical cord
B. notochord
C. spinal cord
D. liver
Answer: | C | sciq |
What use enzymes to break down foreign matter and dead cells?
A. lipids
B. hormones
C. lymphocytes
D. lysosomes
Answer: | D | sciq |
What is indicated by the ratio of the output force to the input force in a machine?
A. mechanical advantage
B. magnetic force
C. momentum
D. man hours
Answer: | A | sciq |
Glucocorticoids and mineralocorticoids are the two main types of what in humans?
A. carotenoids
B. hormones
C. metabolites
D. corticosteroids
Answer: | D | sciq |
What keeps the earth orbiting the sun?
A. strong nuclear force
B. magnetic force
C. weak nuclear force
D. gravity
Answer: | D | sciq |
How do bees communicate to tell other bees where food is located?
A. waggle dance
B. wing flapping
C. high pitch noise
D. mating dance
Answer: | A | sciq |
Along with nerve tissue, what kind of tissue are lecithins and cephalins important constituents of?
A. skin tissue
B. brain tissue
C. lung tissue
D. heart tissue
Answer: | B | sciq |
Metal detectors used for airport security work on which principle?
A. conductivity
B. inertia
C. inductance
D. electricity
Answer: | C | sciq |
Methanogens in their gut enable what process in cows?
A. absorption
B. digestion
C. excretion
D. regeneration
Answer: | B | sciq |
The skeleton of lampreys is made of what?
A. ligament
B. collagen
C. chitin
D. cartilage
Answer: | D | sciq |
How do amphibians reproduce?
A. sexually
B. they don't
C. biologically
D. asexually
Answer: | A | sciq |
What are scientists called who study the weather and give forecasts?
A. geologists
B. botanists
C. meteorologists
D. climatologists
Answer: | C | sciq |
Autocrine signaling takes place within the same what?
A. organ
B. cell
C. proteins
D. tissue type
Answer: | B | sciq |
Both dna and rna are what type of acids?
A. proteins acids
B. synthesize acids
C. fatty acids
D. nucleic acids
Answer: | D | sciq |
What kind of a resource is soil, for human purposes?
A. renewable resource
B. guarana resource
C. emanates resource
D. nonrenewable resource
Answer: | D | sciq |
A natural resource that is consumed or used up faster than it can be made by nature is termed what?
A. fossil fuel
B. energy-inefficient
C. non-renewable
D. renewable
Answer: | C | sciq |
An electrical motor changes electrical energy into what?
A. mechanical energy
B. solar energy
C. chemical energy
D. thermal 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. uterus
B. pollen grains
C. ovaries
D. spores
Answer: | A | sciq |
Nuclear reactors use fission reactions to vaporize water, producing steam to drive a turbine and generate what?
A. fuel
B. oil
C. light
D. electricity
Answer: | D | sciq |
What type of air do plants take in and use?
A. liquid dioxide
B. oxygen
C. carbon dioxide
D. carbon
Answer: | C | sciq |
How long can a large star be on the main sequence stage?
A. 60.11 million years
B. 200.4 million years
C. 10 million years
D. 3 million years
Answer: | C | 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. light emission spectrum
B. prismatic rainbow
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. phospholipids
B. eukaryotes
C. pigments
D. fats
Answer: | A | sciq |
Vitamins are organic compounds that are essential in very small amounts for the maintenance of normal what?
A. metabolism
B. respiration
C. pigments
D. calcium
Answer: | A | 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. socket joint
C. shaft joint
D. pivot joint
Answer: | D | sciq |
Because it damages hair cells, what is the most cause of hearing loss in adults?
A. exposure to noise
B. ear wax
C. bacteria
D. water in the ears
Answer: | A | sciq |
What is regulated to ensure that the correct proteins are made?
A. variation expression
B. gene expression
C. Fat expression
D. acids expression
Answer: | B | sciq |
What mirrors diverge light rays and, thus, have a negative focal length?
A. convex
B. concave
C. curved
D. diffraction
Answer: | A | sciq |
During what stage are chromosomes condensed enough to be seen under a microscope?
A. meiosis
B. mitosis
C. cytokinesis
D. epistasis
Answer: | B | sciq |
What is an odorless white solid that is harmless unless consumed in large quantities?
A. Hydrogen
B. oxygen chloride
C. sodium chloride
D. carbon chloride
Answer: | C | sciq |
Melting, sublimation, and evaporation absorb what from their surroundings?
A. heat
B. vibration
C. moisture
D. cold
Answer: | A | sciq |
What is the series of changes in the reproductive system of a mature female that happens monthly?
A. fetal cycle
B. pregnancy
C. urinary cycle
D. menstrual cycle
Answer: | D | sciq |
What is the average number of individuals per unit of area or volume called?
A. population count
B. population structure
C. population density
D. crowdedness
Answer: | C | sciq |
What types of living beings have water vascular systems and unique tube feet?
A. Ducks
B. mollusks
C. diatoms
D. echinoderms
Answer: | D | sciq |
Which two gases make up the bulk of earth's atmosphere?
A. nitrogen and oxygen
B. nitrogen and argon
C. phosphorus and oxygen
D. carbon and oxygen
Answer: | A | 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. stops
B. rotates
C. oscillates
D. revolves
Answer: | B | sciq |
Norovirus causes the inflammation of the stomach and what else?
A. lungs
B. muscles
C. intestines
D. liver
Answer: | C | sciq |
What forms when tectonic plates move above a hot spot?
A. earthquake chain
B. volcanic setting
C. volcanic system
D. volcanic chain
Answer: | D | sciq |
What is the multicellular diploid stage called?
A. sporophyte
B. sporangium
C. lymphocyte
D. blastocyte
Answer: | A | sciq |
Myopia is commonly called what?
A. farsightedness
B. nearsightedness
C. scoliosis
D. blindness
Answer: | B | sciq |
The prostate gland secretes a fluid that mixes with sperm to help form what?
A. testosterone
B. hormone
C. semen
D. urine
Answer: | C | sciq |
About 95 percent of lipids are absorbed in what organ of the digestive system?
A. kidneys
B. small intestine
C. large intestine
D. stomach
Answer: | B | sciq |
What type of work called occurs when a system pushes back the surroundings against a restraining pressure?
A. expansion work
B. shape work
C. contrast work
D. retention work
Answer: | A | 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. ozone
C. troposphere
D. mesosphere
Answer: | B | sciq |
What type of animal eats both plants and animals?
A. omnivores
B. insectivores
C. herbivores
D. carnivores
Answer: | A | sciq |
What is the term for the muscular duct through which sperm are propelled?
A. the glans deferens
B. the glarus deferens
C. the vas deferens
D. the västerås deferens
Answer: | C | sciq |
What is the most common cause of cancer?
A. technology mutations
B. poor diet
C. smoking
D. cell mutations
Answer: | D | sciq |
The testes produce what hormone?
A. estrogen
B. insulin
C. testosterone
D. dopamine
Answer: | C | 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. components
B. proteins
C. fluids
D. nutrients
Answer: | D | sciq |
Pieces of the cell break off and form a new cell in what type of reproduction that produces genetically identical organisms?
A. Meiosis
B. Mitosis
C. fragmentation
D. Fusion
Answer: | C | sciq |
How do most reptiles produce?
A. sexually
B. occasionally
C. asexually
D. biologically
Answer: | A | sciq |
The minimum amount necessary for self-sustained fission of a given nuclide is called what?
A. its critical mass
B. its molar mass
C. its half-life
D. its activation energy
Answer: | A | sciq |
What are genes that are close together on the same chromosome called?
A. infected genes
B. mutated genes
C. stored genes
D. linked genes
Answer: | D | sciq |
What do neutral atoms have the same number of?
A. electrons and protons
B. gases and protons
C. Measure and electrons
D. toxins and protons
Answer: | A | sciq |
Omnivores are animals that eat both plant- and?
A. liquid diets
B. biofuel
C. animal-derived food
D. recycled food
Answer: | C | 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. chimpanzee
C. orangutan
D. gorilla
Answer: | C | sciq |
Carbon and what are the second and third most abundant elements in your body?
A. helium
B. hydrogen
C. calcium
D. mercury
Answer: | B | sciq |
Glucagon and insulin are produced in what organ?
A. thymus
B. hypothalamus
C. pancreas
D. thyroid
Answer: | C | sciq |
Anagen, catagen and telogen are phases in the growth of what, which involves the root and follicle?
A. brain
B. teeth
C. hair
D. bone
Answer: | C | 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. affixation
C. abscission
D. ablation
Answer: | C | sciq |
Sudden changes in geologic and climatic conditions can spur what process?
A. generation
B. cloning
C. evolution
D. symbiosis
Answer: | C | sciq |
What is the fluid that carries sperm through the urethra and out of the body, and provides it with nutrients?
A. semen
B. yeast
C. bacteria
D. blood
Answer: | A | sciq |
In what unit is frequency measured in?
A. gram
B. hertz
C. centimeter
D. mole
Answer: | B | sciq |
Mixtures of materials called alloys contain at least one of what type of material?
A. steel
B. metal
C. coal
D. liquid
Answer: | B | 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. natural gas
B. nuetralized gas
C. fluid gas
D. compounded gas
Answer: | A | sciq |
Chewing a bite of bread mixes it with what and facilitates its chemical breakdown?
A. chyme
B. interstitial fluid
C. saliva
D. calcium
Answer: | C | sciq |
What is occurring at an alarming rate as a result of global climate change and the constant melting point of ice?
A. glacial formation
B. glacial movement
C. glacier melt
D. glacial hardening
Answer: | C | sciq |
What triggers the fight-or-flight response?
A. endorphine
B. amphetamine
C. respiration
D. epinephrine
Answer: | D | sciq |
What is the term for the force applied to a wheel and axle?
A. input force
B. velocity force
C. momentum
D. output force
Answer: | A | sciq |
Magnetic resonance imaging devices use what to cool the superconducting magnets?
A. antifreeze
B. liquid nitrogen
C. fluorocarbons
D. dry ice
Answer: | B | sciq |
Water moving up the plane and evaporating from the leaves is a process known as what?
A. propagation
B. transpiration
C. sublimation
D. evaporation
Answer: | B | sciq |
How many bones fuse together to form the cranium?
A. 8
B. 8
C. 3
D. 6
Answer: | A | sciq |
What is the amount of moisture in the atmosphere?
A. mixture
B. humidity
C. heat
D. static
Answer: | B | sciq |
What heisenberg principle imposes ultimate limits on what is knowable in science?
A. uncertainty principle
B. certainty principle
C. vacuum principle
D. impossibility principle
Answer: | A | sciq |
Narrowing of the arterioles causes an increase of what upstream in the arteries?
A. heart beat
B. white blood cells
C. red blood cells
D. blood pressure
Answer: | D | sciq |
What are double sugars called?
A. sodiums
B. disaccharides
C. silicates
D. monosaccharides
Answer: | B | sciq |
Cells that undergo cell division continue to have their telomeres shortened, thus telomere shortening is associated with what life process?
A. metabolism
B. reducing
C. aging
D. reproduction
Answer: | C | sciq |
Which two basic parts of a plant develop tough outer coatings to protect the plant from the environment?
A. stems and stalks
B. bark and stems
C. leaves and stems
D. roots and leaves
Answer: | C | 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. proteins
B. liver
C. brain
D. bloodstream
Answer: | D | sciq |
What substances, which serve as catalysts, are involved in most of the chemical reactions that take place in organisms?
A. enzymes
B. proteins
C. vitamins
D. carbohydrates
Answer: | A | 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. circulatory system
B. nervous system
C. abnormal system
D. skeleton system
Answer: | B | sciq |
What is the area where an electron is most likely to be found called?
A. orbital
B. neutron
C. proton
D. neucleus
Answer: | A | 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 |
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