prompt stringlengths 51 646 | completion stringclasses 8 values | source stringclasses 3 values |
|---|---|---|
What species do humans belong to?
A. monkeys
B. hominids
C. homo erectus
D. homo sapiens
Answer: | D | sciq |
Titration is a method to determine what in acids or bases?
A. glucose
B. alkalinity
C. concentration
D. maturation
Answer: | C | sciq |
How many different amino acids make up proteins.
A. 14
B. 25
C. 30
D. 20
Answer: | D | sciq |
What are sores in the lining of the stomach or duodenum that are usually caused by bacterial infections or acidity?
A. clots
B. hernia
C. lesions
D. ulcers
Answer: | D | sciq |
In some species, what has led to the evolution of alternative male mating behavior and morphology?
A. sexual selection
B. distributive selection
C. sexual process
D. similar selection
Answer: | A | sciq |
What structure is made from dna and protein molecules coiled together?
A. enzymes
B. bacterium
C. atoms
D. chromosome
Answer: | D | sciq |
What renewable energy source converts energy from the sunlight into electricity?
A. solar energy
B. geothermal energy
C. hydrostatic energy
D. geophysical energy
Answer: | A | sciq |
The radial artery and which artery parallel their namesake bones, giving off smaller branches until they reach the wrist, or carpal region?
A. triceps
B. ulnar
C. biceps
D. humerus
Answer: | B | sciq |
The bones of the skull are connected by what type of joints?
A. pivoting
B. immovable
C. semi-mobile
D. adjustable
Answer: | B | sciq |
What is the lowest layer of the atmosphere?
A. troposphere
B. ionosphere
C. chromosphere
D. lithosphere
Answer: | A | sciq |
What is the name of the type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate?
A. bundle sheth cell
B. meristem
C. cuticle
D. guard cell
Answer: | B | sciq |
Phosphate-containing ocean sediments form primarily from the bodies of ocean organisms and from their what?
A. excretions
B. skeletons
C. blood
D. ancestors
Answer: | A | sciq |
What does erosion do to pieces of broken rock?
A. Cancel Them
B. lead them
C. Smooth them
D. moves them
Answer: | D | sciq |
The passing of traits from parents to offspring is done through what?
A. dna
B. blood
C. egg
D. sperm
Answer: | A | sciq |
In a glass of sweet tea the sugar is known as the solute and the water is known as what?
A. solvent
B. pigment
C. solid
D. calcium
Answer: | A | sciq |
A few earthquakes take place away from plate boundaries, these are called what?
A. deformation earthquakes
B. intraplate earthquakes
C. outer earthquakes
D. distant earthquakes
Answer: | B | sciq |
Red litmus paper turns what color when placed in a basic solution?
A. orange
B. pink
C. white
D. blue
Answer: | D | sciq |
The difference between the theoretical half-reaction reduction potential and the actual voltage required is called what?
A. excess
B. resistance
C. overpotential
D. overcharge
Answer: | C | sciq |
While the egg is developing, other changes are taking place in the uterus. it develops a thick lining that is full of what?
A. tiny blood vessels
B. white blood cells
C. amniotic fluid
D. large arteries
Answer: | A | sciq |
The neural plate undergoes a series of cell movements where it rolls up and forms a tube called what?
A. occular tube
B. neural tube
C. peripheral tube
D. cell tube
Answer: | B | sciq |
Due to the __________ nature of the lipids that make up cell membranes, polar molecules (such as water) and ions cannot easily diffuse across the cell membrane.
A. catalytic
B. hydrophobic
C. saturated
D. hydrophylic
Answer: | B | sciq |
In what way do all vertebrates reproduce?
A. biologically
B. mitosis
C. asexually
D. sexually
Answer: | D | sciq |
First, high temperature denatures proteins and does what to cells?
A. finds them
B. exposes them
C. develops them
D. kills them
Answer: | D | sciq |
What term is used to describe a collection of molecules surrounded by a phospholipid bilayer that is capable of reproducing itself?
A. proteins
B. cell
C. organism
D. atom
Answer: | B | sciq |
By allowing blood levels of a hormone to be regulated within a narrow range, feedback loops contribute to maintaining what state?
A. homeostasis
B. consciousness
C. hibernation
D. hypothesis
Answer: | A | sciq |
Collagen fibers, elastic fibers, and reticular fibers comprise what type of tissue?
A. intestine tissue
B. connective tissue
C. skin tissue
D. nucleus tissue
Answer: | B | sciq |
What the name of the disease where some of the alveoli of the lungs fill with fluid so they can no longer exchange gas?
A. lung cancer
B. pneumonia
C. emphysema
D. leukemia
Answer: | B | sciq |
What occurs when groups from the same species stop mating because of something other than physical or geographic separation?
A. invasive speciation
B. complementary speciation
C. sympatric speciation
D. extinction
Answer: | C | sciq |
What environment do animals with gills live in?
A. underground
B. air
C. water
D. cold
Answer: | C | sciq |
What is the boiling and freezing point of water in celcius?
A. 212 degrees c and 0 degrees c
B. 100 degrees c and 0 degrees c
C. 100 degrees c and 32 degrees c
D. 212 degrees c and 32 degrees c
Answer: | B | sciq |
What are living things that obtain glucose by eating self feeders called?
A. producers
B. viruses
C. heterotrophs
D. chimeras
Answer: | C | sciq |
Virtually every task performed by living organisms requires this?
A. metals
B. energy
C. mineral
D. solids
Answer: | B | sciq |
The binding of what helps eliminate antigens by phagocytosis and complement-mediated lysis
A. antibodies
B. fats
C. amino acids
D. proteins
Answer: | A | sciq |
What muscles are used to pump water over the gills?
A. muscles and pharynx
B. jaws and pharynx
C. pharynx and tonsils
D. lungs and pharynx
Answer: | B | sciq |
Compounds like sodium chloride form structures called what?
A. hydrocarbons
B. crystals
C. microorganisms
D. ions
Answer: | B | sciq |
What are made of long chains consisting almost solely of carbon and hydrogen?
A. enzymes
B. proteins
C. nucleic acids
D. lipids
Answer: | D | sciq |
When a series of measurements is precise but not what, the error is usually systematic?
A. accurate
B. color
C. length
D. velocity
Answer: | A | sciq |
Inserting copies of normal genes into a patient with defective genes is known as?
A. pattern therapy
B. chromosome treatment
C. gene therapy
D. cloning
Answer: | C | sciq |
What type of reproduction usually occur during times of environmental stress?
A. internal reproduction
B. asexual reproduction
C. hysterical reproduction
D. sexual reproduction
Answer: | D | sciq |
All forms of energy can be interconverted. three things can change the energy of an object: the transfer of heat, work performed on or by an object, or some combination of what?
A. cold and energy
B. heat and work
C. humidity and work
D. temperature and work
Answer: | B | sciq |
What science includes many fields of science related to our home planet?
A. biology
B. meteorology
C. zoology
D. earth science
Answer: | D | sciq |
What are alloys that are mostly composed of mercury known as?
A. halogens
B. amalgams
C. fillings
D. compounds
Answer: | B | sciq |
What are made from highly reflective metal that is applied to a curved or flat piece of glass?
A. kaleidoscopes
B. prisms
C. mirrors
D. lenses
Answer: | C | sciq |
What do ranchers fear will happen if wolves return?
A. loss of environment
B. vegetation predation
C. livestock predation
D. human predation
Answer: | C | sciq |
How many types of surface waves are there?
A. two
B. three
C. over a hundred
D. six
Answer: | A | sciq |
What is the rigid layer that is found outside the cell membrane and surrounds the cell?
A. cell barrier
B. cell shield
C. cell root
D. cell wall
Answer: | D | sciq |
Surface tension of alveolar fluid, which is mostly water, creates an inward pull of the tissue of what organ?
A. heart
B. brain
C. lung
D. spleen
Answer: | C | sciq |
What type of tumor mostly does not cause serious problems and can be completely removed by surgery?
A. toxic
B. persistent
C. malignant
D. benign
Answer: | D | sciq |
What supports and protects the soft organs of the body?
A. skeleton
B. Skin
C. Muscle
D. skull
Answer: | A | sciq |
What celestial body is the earth’s main source of energy?
A. moon
B. rivers
C. ocean
D. sun
Answer: | D | sciq |
What do you call the horizontal stems of a strawberry plant that run over the ground surface?
A. stolons
B. sprouts
C. climbing vines
D. root volunteers
Answer: | A | sciq |
Glaciers are incredibly powerful agents of what?
A. erosion
B. insulation
C. extinction
D. climate change
Answer: | A | sciq |
What type of pressure is the pressure exerted by gas particles in earth’s atmosphere as those particles collide with objects?
A. vertical pressure
B. adjacent pressure
C. adjacent pressure
D. atmospheric pressure
Answer: | D | sciq |
What helps the plasma membrane keep its shape?
A. molecules of carbohydrates
B. molecules of oxygen
C. molecules of cholesterol
D. cytoplasm
Answer: | C | sciq |
What type of reproduction only involves one parent?
A. asexual
B. primitive
C. binary
D. organic
Answer: | A | sciq |
What is defined as a repeating series of events that include growth, dna synthesis, and cell division?
A. cell cycle
B. photosynthesis
C. puberty
D. meiosis
Answer: | A | sciq |
How metalloids behave in chemical interactions with other elements depends mainly on the number of what, in the outer energy level of their atoms?
A. electrons
B. protons
C. neutrons
D. positrons
Answer: | A | sciq |
What distinguishing characteristic of annelid anatomy shows specialization and adaptation?
A. asymmetry
B. segmentation
C. compression
D. beautiful
Answer: | B | sciq |
The spermatids are transported from the testes to where?
A. Duodenum
B. vas
C. epididymis
D. abdominis
Answer: | C | sciq |
How does water from roots reach the leaves?
A. water-conducting cells
B. water - combining cells
C. water - raising cells
D. water-phobic cells
Answer: | A | sciq |
As a polycrystalline material solidifies, grains with irregular shapes form. the interfaces between grains constitute grain what?
A. waves
B. boundaries
C. patterns
D. obstacles
Answer: | B | sciq |
Motors are the most common application of magnetic force on current-carrying wires. motors have loops of wire in this?
A. capacitors
B. electrical circuit
C. spark plugs
D. magnetic field
Answer: | D | sciq |
What makes and stores pigments that give petals and fruit their orange and yellow colors?
A. pores
B. sporozoans
C. protozoa
D. chromoplasts
Answer: | D | sciq |
What term is used to describe when a liquid is the temperature at which its equilibrium vapor pressure is equal to the pressure exerted on the liquid by its gaseous surroundings?
A. evaporating point
B. boiling point
C. burning point
D. freezing point
Answer: | B | sciq |
When electrons return to a lower energy level, they emit the excess energy in the form of what?
A. electricity
B. weight
C. energy
D. light
Answer: | D | sciq |
What is another term for nearsightedness?
A. hypoxia
B. glaucoma
C. myopia
D. anemia
Answer: | C | sciq |
What are the areas located at fixed distances from the nucleus of the atom?
A. energy levels
B. atomic regions
C. molar levels
D. orbit points
Answer: | A | sciq |
In which state of matter do particles take the shape of their container, but cannot expand to fill it?
A. liquid
B. chemical
C. gas
D. mixture
Answer: | A | sciq |
Runoff is likely to cause more what if the land is bare?
A. weathering
B. abrasion
C. erosion
D. sediment
Answer: | C | sciq |
Cations have what type of charge?
A. neutral
B. positive
C. negative
D. constant
Answer: | B | sciq |
What organ is subdivided into ascending, descending, transverse and sigmoid parts?
A. colon
B. lungs
C. heart
D. uterus
Answer: | A | sciq |
Ammonia, urea, and uric acid are examples of what kind of waste?
A. oxygenous
B. sulphurous
C. nitrogenous
D. carbonous
Answer: | C | sciq |
What are variants of genes called?
A. mutations
B. antigens
C. alleles
D. allergens
Answer: | C | sciq |
Mushrooms are an example of what type of organism, which includes beneficial and toxic specimens?
A. seeds
B. fungi
C. spores
D. bacteria
Answer: | B | sciq |
Comparing what sequences provides clues to evolution and development?
A. DNA
B. organisms
C. genes
D. genome
Answer: | D | sciq |
What is a measure of the average amount of energy of motion, or kinetic energy, a system contains called?
A. precipitation
B. variation
C. temperature
D. size
Answer: | C | sciq |
What is the minimum mass capable of supporting sustained fission called?
A. baseline mass
B. critical mass
C. concentrated mass
D. particular mass
Answer: | B | sciq |
Many hydrocarbons are cyclic and adopt specific three-dimensional structures that influence their physical and what properties?
A. chemical
B. radiation
C. liquid
D. electrical
Answer: | A | sciq |
The secondary wall contains _________ , a secondary cell component in plant cells that have completed cell growth/expansion.
A. cellulose
B. cytoplasm
C. glucogen
D. lignin
Answer: | D | sciq |
What does the cell cycle do?
A. create new cells
B. divide and reproduce cells
C. only reproduce cells
D. only divide cells
Answer: | B | sciq |
Inside the nasal area of the skull, the nasal cavity is divided into halves by the what?
A. cell wall
B. cytoplasm
C. nasal septum
D. cerebral cortex
Answer: | C | sciq |
Bacteria can be chemotrophs, which obtain what by breaking down chemical compounds in their environment?
A. waste
B. food
C. energy
D. chemials
Answer: | C | sciq |
Habitat loss, introduced species, overharvesting, and global change are major threats to what?
A. the sun
B. the earth's gravity
C. transportation
D. biodiversity
Answer: | D | sciq |
What "plumbing" structures inside the veins maintain a unidirectional flow of blood despite the low blood pressure?
A. tubes
B. valves
C. funnels
D. pumps
Answer: | B | sciq |
What do we call the cartilaginous structure that surrounds the notochrod?
A. arcualia
B. osteocytes
C. clavicle
D. membrane
Answer: | A | sciq |
What is the process of the transfer of pollen from an anther to a stigma in angiosperms called?
A. wind
B. evolution
C. grabation
D. pollination
Answer: | D | sciq |
Despite its small size, an erythrocyte contains about 250 million molecules of what?
A. potassium
B. calcium
C. plasma
D. hemoglobin
Answer: | D | sciq |
How many variables are used to describe the condition of a gas?
A. five
B. one
C. four
D. three
Answer: | C | sciq |
What is a suggested explanation for a phenomenon or a suggested explanation for a relationship between many phenomena called?
A. hypothesis
B. query
C. process
D. system
Answer: | A | sciq |
Land plants are classified into two major groups according to the absence or presence of what tissue?
A. root
B. disease
C. vascular
D. bacterial
Answer: | C | sciq |
What type of treatment is necessary for anaphylaxis?
A. allergy shot
B. emergency
C. outpatient
D. intensive care
Answer: | B | sciq |
What substances, which are distinct from acids and bases, form when ions form ionic bonds?
A. water molecules
B. oils
C. salts
D. vitamins
Answer: | C | sciq |
What is the name for biochemical compounds that consist of one or more chains of small molecules called amino acids?
A. hormones
B. proteins
C. protons
D. lipids
Answer: | B | sciq |
What are the ionic compounds that produce negative hydroxide ions when dissolved in water?
A. enzymes
B. isotopes
C. acids
D. bases
Answer: | D | sciq |
The atomic number of tungsten is 74. therefore, in a neutral atom of tungsten, there are 74 electrons. the atomic number of argon is 18. therefore, in a neutral atom of argon, there are how many electrons?
A. 36
B. 74
C. 9
D. 18
Answer: | D | sciq |
What is the apparatus used for carrying out an electrolysis reaction?
A. Golgi apparatus
B. an aqueous cell
C. catalyst
D. an electrolytic cell
Answer: | D | sciq |
What two ways may light be transmitted?
A. absorption and refraction
B. reflected or refracted
C. magnified or scattered
D. refracted or scattered
Answer: | D | sciq |
Triggered by changes in the environment, migration and hibernation occur as cycles on what temporal basis?
A. seasonally
B. annual
C. monthly
D. bi-annually
Answer: | B | sciq |
What pair of tubes that extends toward the ovaries features a fringelike structure that sweeps eggs inside?
A. fallopian tubes
B. golgi apparatus
C. ovarian tubes
D. vas deferens
Answer: | A | sciq |
In most animals, what sense is related to balance or equilibrium?
A. vision
B. hearing
C. tasting
D. feeling
Answer: | B | sciq |
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