prompt stringlengths 51 646 | completion stringclasses 8 values | source stringclasses 3 values |
|---|---|---|
Living organisms release carbon dioxide into the atmosphere by what method?
A. cellular respiration
B. major respiration
C. genomic respiration
D. widespread respiration
Answer: | A | sciq |
Excretory organs that conserve what essential substance help terrestrial animals to avoid desiccation?
A. metabolytes
B. food
C. air
D. water
Answer: | D | sciq |
Venus rotates slowly in a direction opposite to the direction of what?
A. its orbit
B. the sun
C. the Earth's orbit
D. the orbit of Mars
Answer: | A | sciq |
What is the ph of pure water?
A. 2
B. 4
C. 7
D. 5
Answer: | C | sciq |
The volume of a gas is comprised of about 10% matter. what is the rest?
A. empty space
B. normal space
C. open space
D. instead space
Answer: | A | sciq |
Heterotrophs is another name for what group?
A. producers
B. autotrophs
C. consumers
D. omnivores
Answer: | C | sciq |
What is dna transcribed into after being replicated?
A. diploid chromosomes
B. gene
C. rna
D. protein
Answer: | C | sciq |
What is name of the phenomenon where similar traits evolve independently in species that do not share a common ancestry?
A. equation evolution
B. convergent evolution
C. divergent evolution
D. coalescence evolution
Answer: | B | sciq |
The flow of water through the sponge is unidirectional, driven by the beating of what?
A. fin
B. cilia
C. flagella
D. antennae
Answer: | C | sciq |
What is the process for developing knowledge called?
A. science
B. evolution
C. theory
D. creationism
Answer: | A | sciq |
Arteries, veins, and capillaries are the three main types of what?
A. blood vessels
B. blood shapes
C. blood pathways
D. cell structures
Answer: | A | sciq |
Amphibians may attract mates with what?
A. only scents
B. only calls
C. neither
D. calls or scents
Answer: | D | sciq |
What type of bounded nucleus do protists have?
A. Mitochondrion
B. membrane
C. Endoplasmic reticulum
D. Ribosomes
Answer: | B | sciq |
Which body part is unsuitable for animals living on land?
A. feet
B. hands
C. lungs
D. gills
Answer: | D | sciq |
Which inducer turns on the expression of the lac genes?
A. glucose
B. allolactose
C. galactose
D. xerophyte
Answer: | B | sciq |
What is the most common type of brain injury?
A. Diffuse Axonal
B. concussion
C. Anoxic Event
D. Contusion
Answer: | B | sciq |
Changing the shape of an elastic material gives it what type of energy?
A. thermal
B. practical
C. initial
D. potential
Answer: | D | sciq |
What type of traits are features that are passed from one generation to the next called?
A. inherited traits
B. generational traits
C. genetic traits
D. familial traits
Answer: | A | sciq |
What is your body made up of?
A. trillions of cells
B. skin
C. millions of elements
D. energy
Answer: | A | sciq |
Hemoglobin is responsible for transporting what within our blood?
A. nitrogen
B. dioxide
C. water
D. oxygen
Answer: | D | sciq |
How do bipedal creatures walk?
A. on four legs
B. on twelve legs
C. on six legs
D. on two legs
Answer: | D | sciq |
Any sample of matter that has the same physical and chemical properties throughout the sample is called what?
A. molecule
B. substance
C. element
D. type
Answer: | B | sciq |
What is a measure of both speed and direction of motion?
A. distance
B. acceleration
C. velocity
D. intensity
Answer: | C | sciq |
What do fish eggs hatch to form?
A. unfertilized eggs
B. tadpoles
C. adolescent fish
D. fish eggs hatch to form larvae
Answer: | D | sciq |
Commensalism, mutualism, and parasitism are known as what type of relationships?
A. various
B. simple
C. symbiotic
D. peculiar
Answer: | C | sciq |
The modern model of the atom, which scientists call the quantum mechanical model, is based on what scientist's work on orbitals?
A. schrödinger
B. Bohr
C. Sagan
D. Newton
Answer: | A | sciq |
Time, mass, length, and temperature are considered to be what kinds of units?
A. unitary
B. base
C. support
D. measurement
Answer: | B | sciq |
What does the heat energy affect in the atmosphere?
A. winds and weather
B. gravity and precipitation
C. density and humidity
D. erosion and condensation
Answer: | A | sciq |
What are the taste receptors found as tiny bumps on the tongue called?
A. taste buds
B. ear buds
C. fat buds
D. hard buds
Answer: | A | sciq |
What is the chemical formula for a glucose molecule?
A. a5 h12 o6
B. d5 h12 o6
C. c6 h12 o6
D. H2 C3 NA6
Answer: | C | sciq |
In physics, the number of waves that pass a fixed point in a given amount time is referred to as what ?
A. creation frequency
B. wave count
C. wave frequency
D. combination frequency
Answer: | C | sciq |
The reactions between alkali metals and water are particularly vigorous and include the rapid production of large quantities of what gas?
A. helium
B. carbon
C. oxygen
D. hydrogen
Answer: | D | sciq |
Batteries produce voltage through what type of reaction?
A. magnetic
B. radiation
C. thermal
D. chemical
Answer: | D | sciq |
The speed of a particle in what state is directly proportional to the temperature of the system?
A. frozen
B. gas
C. liquid
D. solid
Answer: | B | sciq |
Acne results from a blockage of sebaceous glands by what?
A. sebum
B. mucous
C. progesterone
D. fat
Answer: | A | sciq |
Just as millions of different words are spelled with our 26-letter english alphabet, millions of different proteins are made with the 20 common what?
A. mutation acids
B. enzymes
C. peptides
D. amino acids
Answer: | D | sciq |
Anaerobic respiration takes place without what?
A. carbon
B. oxygen
C. movement
D. nitrogen
Answer: | B | sciq |
Which other planet in the solar system is the easiest to observe from earth?
A. mars
B. Mercury
C. Jupiter
D. Pluto
Answer: | A | sciq |
What is in the inside of your mouth and nose instead of skin?
A. mucous membranes
B. cuticle layer
C. scales
D. gums
Answer: | A | sciq |
While matter is recycled, ecosystems need a constant input of what?
A. food
B. heating
C. light
D. energy
Answer: | D | sciq |
What is term for the smallest particle of an element that still has the properties of said element?
A. atom
B. molecule
C. proton
D. nucleus
Answer: | A | sciq |
What is the protein that carries iron that binds with oxygen in red blood cells?
A. potassium
B. hemoglobin
C. insulin
D. keratin
Answer: | B | sciq |
What branch of science is based on the modern atomic theory, which states that all matter is composed of atoms?
A. biology
B. chemistry
C. physics
D. psychology
Answer: | B | sciq |
Why do sharks sense low levels of electricity?
A. to sleep
B. to locate prey
C. to locate mates
D. to reproduce
Answer: | B | sciq |
What membrane is populated by two types of photosystems that cooperate in the light reactions of photosynthesis?
A. choroid
B. thylakoid
C. chloroplasts
D. subcutaneous
Answer: | B | sciq |
At what point can nutrients enter or exit an ecosystem?
A. Largest Population Point
B. any point
C. Hottest Point
D. Longest Point
Answer: | B | sciq |
B cells and t cells are examples of what type of cells?
A. heart cells
B. cancer cells
C. skin cells
D. white blood cells
Answer: | D | sciq |
There are three different types of rna. all three types are needed to make what?
A. proteins
B. acids
C. lipids
D. Blood
Answer: | A | sciq |
Niche and habitat are concepts related to what broader term?
A. ecosystem
B. community
C. biome
D. population
Answer: | A | sciq |
What do opposite charges do to one another?
A. strengthen
B. weaken
C. attract
D. repel
Answer: | C | sciq |
What is the name for the sinking of the dense, salty seawater in cold climates?
A. tidal activity
B. cyclones
C. downwelling
D. jet stream
Answer: | C | sciq |
When gas particles heat up and gain energy, what do they do?
A. move faster
B. stop
C. go up
D. move slower
Answer: | A | sciq |
Ion pumps, the biological machines responsible for the selective transport of metal ions, are complex assemblies of what?
A. proteins
B. acids
C. minerals
D. cells
Answer: | A | sciq |
Lack of proper food over a period of time can lead to what condition, where the body is not getting enough nutrients to grow and stay healthy?
A. malnutrition
B. bulimia
C. anemia
D. mortality
Answer: | A | sciq |
Two water molecules contain 4 hydrogen atoms and how many oxygen atoms?
A. 6
B. 2
C. 1
D. 4
Answer: | B | sciq |
The carrying angle is larger in females to accommodate their what?
A. broader shoulders
B. cranium
C. wider pelvis
D. narrower pelvis
Answer: | C | sciq |
Examples of organ systems in a human include the skeletal, nervous, and what?
A. affecting systems
B. immune systems
C. nervous systems
D. reproductive systems
Answer: | D | sciq |
Most hormones are controlled by what type of feedback, which causes the hormone to decrease its own production?
A. unusual
B. positive
C. neutral
D. negative
Answer: | D | sciq |
What is the stage called for babies that are in the first year of life after birth?
A. adolescence
B. infancy
C. original stage
D. primary stage
Answer: | B | sciq |
What forms a barrier between the cytoplasm and the environment outside the cell?
A. epidermis
B. cell wall
C. plasma membrane
D. cuticle
Answer: | C | sciq |
Over time, what changes solid rock into pieces?
A. metamorphosis
B. leaching
C. weathering
D. creep
Answer: | C | sciq |
Eukaryotic cells undergo what kinds of divisions that more primitive cells do not?
A. homologous
B. budding
C. mitosis
D. meiosis
Answer: | C | sciq |
The orbicularis oris is a circular muscle that moves the lips, and the orbicularis oculi is a circular muscle that does what?
A. moisturizes the eye
B. closes the eye
C. pressure the eye
D. opens the eye
Answer: | B | sciq |
What may have developed to help our ancestors distinguish between ripe and unripe fruits?
A. acute hearing
B. color vision
C. night vision
D. fine motor skills
Answer: | B | sciq |
Which stage is specialized for dispersal & reproduction?
A. cocoon stage
B. adult stage
C. fetal stage
D. larval stage
Answer: | B | sciq |
What three parameters do seismographs measure?
A. height, width and distance
B. trouble , length and distance
C. strength, length and distance
D. aging , length and distance
Answer: | C | sciq |
What topographic feature does a circle with inward hatches represent on a contour map?
A. a depression
B. a mountain
C. a lake
D. vegetation
Answer: | A | sciq |
Which temperatures cause particles of reactants to have more energy?
A. lower
B. higher
C. reducing
D. non-existant
Answer: | B | sciq |
Not all cells of a leaf carry out photosynthesis. cells within the middle layer of a leaf have chloroplasts, which contain the photosynthetic what?
A. wires
B. pipes
C. structure
D. apparatus
Answer: | D | sciq |
What is the advantage of selecting for certain genetic traits for crops?
A. promotes productivity
B. improves taste
C. Faster growth
D. protection from pests
Answer: | A | sciq |
What is given off from plants and taken in by animals?
A. methane
B. sulfur
C. nitrogen
D. oxygen
Answer: | D | sciq |
What is the simplest unit that has the fundamental chemical properties of an element?
A. neutron
B. cell
C. nucleus
D. atom
Answer: | D | sciq |
Bacteria are what kind of cell?
A. eukaryotes
B. prokaryotes
C. blood
D. protists
Answer: | B | sciq |
What is the first stage of cellular respiration?
A. decarboxylation
B. glycolysis
C. Krebs cycle
D. gluconeogenesis
Answer: | B | sciq |
Who study volcanoes to be able to predict when a volcano will erupt?
A. volcanologists
B. virologists
C. vocologists
D. ornithologists
Answer: | A | sciq |
What is the term for electric current that keeps reversing direction?
A. magnetic current
B. alternating current
C. direct current
D. AC/DC
Answer: | B | sciq |
How many alleles comes from each parent?
A. none
B. three
C. one
D. two
Answer: | C | sciq |
How close a measurement is to the correct value for that measurement is known as what?
A. accuracy
B. rate
C. temperature
D. frequency
Answer: | A | sciq |
What pigment is required for photosynthesis to occur?
A. carotene
B. chroma
C. chlorophyll
D. xanthophyll
Answer: | C | sciq |
What begins approximately six weeks after fertilization in an embryo?
A. elongation
B. calcification
C. incubation
D. ossification
Answer: | D | sciq |
What do you call the energy that must be overcome in order for a chemical reaction to occur, or the minimum energy required to start a chemical reaction?
A. kinetic energy
B. activation energy
C. expression energy
D. phase energy
Answer: | B | sciq |
Frogs and toads, salamanders and newts, and caecilians are the three orders of what group of animals?
A. amphibians
B. mammals
C. marsupials
D. reptiles
Answer: | A | sciq |
What are vesicles made of?
A. phospholipids
B. membranes
C. cells
D. filaments
Answer: | A | sciq |
Deoxyribonucleic acid (dna) is nucleotide that stores what type of information?
A. mononucleus
B. variation
C. genetic
D. mutation
Answer: | C | sciq |
What two basic types of feather does a bird have?
A. up and down
B. carrying and down
C. flight and down
D. flight and landing
Answer: | C | sciq |
Which fuels provide most of the world’s energy?
A. fossil fuels
B. artificial fuels
C. coal fuels
D. pattern fuels
Answer: | A | sciq |
The cathode and anode collectively are the electrodes of what?
A. switch cell
B. photo cell
C. circuit cell
D. voltaic cell
Answer: | D | sciq |
What part of the sweet potato store sugar from photosynthesis as starch?
A. plants
B. skin
C. shrubs
D. roots
Answer: | D | sciq |
What is the ratio of charge on a capacitor to potential difference across it called?
A. capacitance
B. electromagnetism
C. resonance
D. velocity
Answer: | A | sciq |
What substances that primarily comprise plasma membranes form a bilayer?
A. enzymes
B. steroids
C. amino acids
D. phospholipids
Answer: | D | sciq |
What type of friction is friction that acts on objects when they are sliding over a surface?
A. sliding friction
B. rolling friction
C. spreading friction
D. static friction
Answer: | A | sciq |
Billions of what inside the human digestive tract help us digest food, make vitamins and play other important roles?
A. neurons
B. red blood cells
C. viruses
D. bacteria
Answer: | D | sciq |
In a controlled scientific study, what do you call a factor that can take on different values?
A. vector
B. input
C. variable
D. output
Answer: | C | sciq |
What is a group of similar ecosystems with the same general abiotic factors and primary producers called?
A. ecoculture
B. biome
C. population
D. ecological environment
Answer: | B | sciq |
Since 1900, four of the five earthquakes of the greatest magnitude occurred near what appropriately nicknamed pacific location?
A. seismic zone
B. ring of fire
C. shower of fire
D. quake epicenter
Answer: | B | sciq |
All chemical changes involve a transfer of what?
A. oxygen
B. fuel
C. pressure
D. energy
Answer: | D | sciq |
What is the most common type of capillary?
A. continuous
B. large
C. channels
D. ending
Answer: | A | sciq |
What is the bending of waves around a corner called?
A. reflection
B. diffraction
C. absorption
D. propulsion
Answer: | B | sciq |
In what kind of bond does one atom contribute both of the electrons in the shared pair?
A. an ionic bond
B. a covalent bond
C. a metallic bond
D. a valence bond
Answer: | B | sciq |
Mirrors and lenses are used in optical instruments to reflect and refract what?
A. mass
B. gravity
C. light
D. electricity
Answer: | C | sciq |
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