prompt stringlengths 51 646 | completion stringclasses 8 values | source stringclasses 3 values |
|---|---|---|
As per the kinetic-molecular theory, in what direction do the molecules and ions of liquids move?
A. alter directions
B. opposite direction
C. same direction
D. random directions
Answer: | D | sciq |
Cephalization refers to the development of what anatomical region, which evolved at the same time as bilateral symmetry in animals?
A. head
B. chest
C. heart
D. tail
Answer: | A | sciq |
What term describes a region of space around an atom that has a non-zero probability for an electron with a particular energy?
A. orbital lobe
B. related orbital
C. atomic orbital
D. minimal orbital
Answer: | C | sciq |
How do the male gorillas show display behaviors?
A. spontaneous mutation
B. food gathering
C. vocalization
D. showing aggression
Answer: | D | sciq |
A genetic molecule is called dna, which stands for this?
A. dense ribonucleic acid
B. deoxyribonucleic acid
C. dark nitrogen amine
D. di-nitrous ammonia
Answer: | B | sciq |
Is sleep an active or inactive state in the brain?
A. inactive
B. different
C. intense
D. active
Answer: | D | sciq |
What is is a measurement of the force amplification of a machine?
A. force multiplier
B. mechanical advantage
C. mechanical pull
D. mechanical push
Answer: | B | sciq |
What branch of science is the study of the solid earth?
A. ecology
B. palentology
C. biology
D. geology
Answer: | D | sciq |
What is harmless water vapor, for a powerplant?
A. fog
B. steam
C. wind
D. plasma
Answer: | B | sciq |
What regulates the passage of blood into capillary beds?
A. cell membrane
B. diocesan sphincters
C. bicellular sphincters
D. precapillary sphincters
Answer: | D | sciq |
What do you call the symbiotic relationship where a parasite benefits while the host is harmed?
A. invasion
B. hostism
C. symbolic damage
D. parasitism
Answer: | D | sciq |
What length of time is human gestation commonly divided into?
A. four quarters
B. fifty weeks
C. three trimesters
D. two halves
Answer: | C | sciq |
What substance, involved in most biochemical reactions, is essential to life?
A. water
B. air
C. carbon
D. nitrogen
Answer: | A | sciq |
What type of tissue covers the outside of a plant?
A. epidermal
B. anterior
C. porous
D. dermal
Answer: | D | sciq |
Metamorphic rocks form when an existing rock is changed by heat or what?
A. pressure
B. radiation
C. chemical reaction
D. cold
Answer: | A | sciq |
What anatomical structure serves as the conduit of the oocyte from the ovary to the uterus?
A. nephrons
B. ureters
C. uterine tubes
D. urethra
Answer: | C | sciq |
What cell structures are like storage centers and tend to be larger in plant cells?
A. vacuoles
B. alleles
C. nuclei
D. tubules
Answer: | A | sciq |
Oscillations in the transcription of certain genes are at the heart of the molecular mechanisms underlying what biological rhythms?
A. circadian rhythms
B. metastasis rhythms
C. brain rhythms
D. reproductive rhythms
Answer: | A | sciq |
Give an example of a ball-and-socket joint, which has the greatest range of motion, allowing movement in several directions.
A. pulley
B. lever
C. shoulder
D. monkey wrench
Answer: | C | sciq |
Difference in electric potential energy are measured in what basic unit?
A. moles
B. watts
C. knots
D. volts
Answer: | D | sciq |
How many stars are in our solar system?
A. three
B. one
C. none
D. two
Answer: | B | sciq |
Landslides and mudslides are the most destructive types of what geologic phenomenon?
A. formation movement
B. land momentum
C. intensity movement
D. mass movement
Answer: | D | sciq |
What scientific word, which gives its name to a type of rock, means "to change form"?
A. evaporation
B. metamorphism
C. evolution
D. igneous
Answer: | B | sciq |
The sporophyte phase is the longest phase in the life of what?
A. angiosperm
B. echinoderm
C. arthropod
D. gymnosperm
Answer: | D | sciq |
Hair color and skin color are known as what?
A. abominations
B. habits
C. traits
D. mutations
Answer: | C | sciq |
Amines are classified according to the number of carbon atoms bonded directly to what atom?
A. helium
B. hydrogen
C. nitrogen
D. oxygen
Answer: | C | sciq |
Because core electrons are closer to the nucleus, they are not involved in what?
A. splitting
B. bonding
C. diffusion
D. fission
Answer: | B | sciq |
The upper portion of the septum is formed by the perpendicular plate of which bone?
A. duodenum bone
B. colossal bone
C. concomitant bone
D. ethmoid bone
Answer: | D | sciq |
Cells in green algae divide along cell plates called what?
A. chloroplasts
B. phragmoplasts
C. xanthophylls
D. cellulose
Answer: | B | sciq |
What are saprobes that decompose organic matter?
A. sponges
B. protists
C. fungi
D. chordates
Answer: | C | sciq |
Because complex plant carbohydrates such as cellulose are more difficult to digest, what animal diet is associated with a complicated digestive system?
A. herbivore
B. omnivore
C. polyvore
D. carnivore
Answer: | A | sciq |
What are all cells surrounded by?
A. cytoplasm
B. cell substrate
C. amino acids
D. cell membrane
Answer: | D | sciq |
The leaves of all of what type of plants have two basic parts in common: the blade and petiole?
A. perennials
B. flowering plants
C. deciduous
D. evergreen
Answer: | B | sciq |
Through what do plants move enormous amounts of water from the soil to the atmosphere?
A. evaporation
B. perspiration
C. respiration
D. transpiration
Answer: | D | sciq |
What explains why two different species cannot occupy the same niche in the same place for very long?
A. evolution
B. natural selection
C. survival exclusion princple
D. competive exclusion princple
Answer: | D | sciq |
The cytoplasm of prokaryotic cells has a high concentration of dissolved solutes. therefore, the osmotic pressure within the cell is what?
A. relatively normal
B. relatively low
C. relative
D. relatively high
Answer: | D | sciq |
What are the ultimate source of genetic variation?
A. gravity
B. parasites
C. mutations
D. proteins
Answer: | C | sciq |
The electron beam scans the surface of the sample, usually coated with a thin film of which metal?
A. copper
B. gold
C. silver
D. platinum
Answer: | B | sciq |
In a longitudinal wave, what term is a measure of how compressed particles of the medium become when the wave passes through?
A. frequency
B. magnitude
C. voltage
D. amplitude
Answer: | D | sciq |
All cells have certain parts in common. these parts include the cell membrane, cytoplasm, dna, and what?
A. ribosomes
B. lipids
C. crystals
D. chromosomes
Answer: | A | sciq |
Competition within a species is called what?
A. species competion
B. internal competition
C. intraspecific competition
D. reproducible competition
Answer: | C | sciq |
What occurs when rain falls more quickly than water can be absorbed into the ground or carried away by rivers or streams?
A. landslides
B. greenhouse effect
C. floods
D. typhoons
Answer: | C | sciq |
What are the building blocks of dna?
A. prokaryotes
B. nucleotides
C. genes
D. peptides
Answer: | B | sciq |
Each line in a structural formula represents a pair of shared what?
A. atoms
B. ions
C. electrons
D. waves
Answer: | C | sciq |
What do vertebrate chordates possess that invertebrate chordates do not?
A. Milk production
B. parasite
C. backbone
D. Thumb
Answer: | C | sciq |
In vascular plants, what two basic structures are made of dermal, vascular, and ground tissues?
A. fruits and nuts
B. stems and flowers
C. roots and seed
D. roots and stems
Answer: | D | sciq |
What is the process resulting in living things with beneficial traits producing more offspring?
A. natural change
B. fluid selection
C. Natural choice.
D. natural selection
Answer: | D | sciq |
Solar cells create voltages directly from light, while thermoelectric devices create voltage from differences in what?
A. wire width
B. oxygen
C. wattage
D. temperature
Answer: | D | sciq |
What theory goes beyond classical mechanics to describe the behavior of near-light-speed objects?
A. simple relativity
B. spacial relativity
C. normal relativity
D. special relativity
Answer: | D | sciq |
What type of structure between the esophagus and the stomach normally opens only when a bolus arrives?
A. larynx
B. sphincter
C. gland
D. intestine
Answer: | B | sciq |
Viroids are plant pathogens much simpler than what, but like them can reproduce only within a host cell?
A. bacteria
B. parasites
C. pests
D. viruses
Answer: | D | sciq |
"crossing over" occurs during what phase of mitosis?
A. prophase VI
B. prophase iii
C. prophase i
D. Prophase ii
Answer: | C | sciq |
What is the preferred food for almost all primates except for humans?
A. fruit
B. grass
C. wheat
D. corn
Answer: | A | sciq |
What property means that something can return to its original shape after being stretched or compressed?
A. homeostasis
B. viscosity
C. elasticity
D. friction
Answer: | C | sciq |
Where does all igneous rock come from?
A. the moon
B. oceans
C. stratosphere
D. magma or lava
Answer: | D | sciq |
Three ways that waves may interact with matter are reflection, refraction, and what?
A. diffraction
B. dispose
C. distortion
D. absorption
Answer: | A | sciq |
Sucrose consists of one molecule of glucose and one molecule of what else?
A. alcohol
B. protein
C. fructose
D. lactose
Answer: | C | sciq |
Many countries have attempted to reduce the human impact on climate change by reducing their emission of what greenhouse gas?
A. methane
B. nitrous oxide
C. acid dioxide
D. carbon dioxide
Answer: | D | sciq |
What occurs when arterioles lose their normal muscular tone and dilate dramatically?
A. cardio shock
B. respiration shock
C. congenital shock
D. vascular shock
Answer: | D | sciq |
Large or small numbers are expressed in scientific notation, which use powers of this?
A. 4
B. 16
C. 2
D. 10
Answer: | D | sciq |
Budding in sponges is a form of what type of reproduction?
A. sexual
B. reasonable
C. asexual
D. competitive
Answer: | C | sciq |
Behaviors that are closely controlled by genes and have little to no environmental influence are called what kinds of behaviors?
A. generalized behaviors
B. innate behaviors
C. diverse behaviors
D. learned behaviors
Answer: | B | sciq |
Mutations which benefit the organism in which they occur are known as?
A. beneficial mutations
B. helpful mutations
C. healthy mutations
D. extraordinary mutations
Answer: | A | sciq |
When gas particles collide, what kinds of collisions are these considered?
A. inelastic
B. conservative
C. elastic
D. perfect
Answer: | C | sciq |
Around 1200 species of what broad animal group are currently at risk of extinction due to human activity?
A. reptiles
B. birds
C. amphibians
D. mammals
Answer: | B | sciq |
The galápagos islands are a group of 16 volcanic islands 600 miles off the west coast of what continent?
A. europe
B. asia
C. south america
D. north america
Answer: | C | sciq |
What structures on the gastrodermal cells keep the contents of the gastrovascular cavity agitated and help distribute nutrients?
A. nucleus
B. telomeres
C. flagella
D. sporangia
Answer: | C | sciq |
What is the factor that affects the solubility of solutes in all three states?
A. temperature
B. oxygen
C. color
D. heat
Answer: | A | sciq |
What kind of ph would you find in water from bogs?
A. normal ph
B. lower ph
C. higher ph
D. regular ph
Answer: | B | sciq |
Where do most of the digestion reactions occur?
A. liver
B. large intestine
C. mouth
D. small intestine
Answer: | D | sciq |
What is the name of the process where light is produced without heat?
A. effervescence
B. radiation
C. fluorescence
D. luminescence
Answer: | D | sciq |
Meats and dairy products link to photosynthesis because the animals were fed what?
A. carnivorous diets
B. plant-based foods
C. chloroplasts
D. biofuel
Answer: | B | sciq |
What the scientific concept stating that when looking at two competing theories, the one with fewer assumptions should be chosen?
A. law of averages
B. law of simplicity
C. law of thermodynamics
D. law of parsimony
Answer: | D | sciq |
What type of map would show average temperatures and rainfall?
A. landscape map
B. carbon map
C. rainfall map
D. climate map
Answer: | D | sciq |
What is the name of the sugar that plants produce to be used as food?
A. glucosamine
B. insulin
C. glucose
D. chlorophyll
Answer: | C | sciq |
Just under their skin, marine mammals have a very thick layer of insulating fat called what?
A. blubber
B. tissue
C. lipisomes
D. cellulose
Answer: | A | sciq |
While in the lungs, blood gives up carbon dioxide and picks up what element before returning to the heart?
A. methane
B. oxygen
C. nitrogen
D. hydrogen
Answer: | B | sciq |
White blood cells called what travel to areas of the body that are inflamed?
A. platelets
B. spirochetes
C. phagocytes
D. gametocytes
Answer: | C | sciq |
How many valence electrons can be found in a carbon atom?
A. One
B. four
C. three
D. five
Answer: | B | sciq |
Diaphragm, lungs, and trachea take air deep into the body and provide oxygen gas to what?
A. bloodstream
B. brain
C. heart
D. molecules
Answer: | A | sciq |
What gases move in and out of blood during gas exchange?
A. oxygen, carbon monoxide
B. oxygen, carbon dioxide
C. nitrogen, carbon dioxide
D. oxygen, nitrogen
Answer: | B | sciq |
What keeps various species from mating and reproducing outside their own species?
A. reproductive organ incompatibility
B. digestive system incompatibility
C. cancer organ incompatibility
D. brain organ incompatibility
Answer: | A | sciq |
A refrigerator must do work to reverse the normal direction of what?
A. visible energy flow
B. spectral energy flow
C. coolant energy flow
D. thermal energy flow
Answer: | D | sciq |
The bone matrix consists of tough protein fibers—mainly what?
A. collagen
B. tissues
C. hemoglobin
D. tendons
Answer: | A | sciq |
Alkynes are what type of compound?
A. Split Hydrocarbons
B. unsaturated hydrocarbons
C. proteins hydrocarbons
D. reversible hydrocarbons
Answer: | B | sciq |
Solar cells turn sunlight directly into what?
A. cold
B. electricity
C. gas
D. water
Answer: | B | sciq |
What type of invertebrate typically has a single spiraled shell?
A. gastropod
B. anthropod
C. arthropod
D. bipod
Answer: | A | sciq |
What are nutrients the body needs in relatively large amounts called?
A. adulterants
B. abundances
C. macronutrients
D. vitamins
Answer: | C | sciq |
What is observed when two perpendicular flagella moves?
A. shaking motion
B. pushing motion
C. turning motion
D. spinning motion
Answer: | D | sciq |
What is the name of a branch of the chemistry that deals with the interconversion of chemical energy and electrical energy?
A. electrochemistry
B. Biochemistry
C. Theoretical Chemistry
D. Inorganic chemistry
Answer: | A | sciq |
Which system in the body exchanges gases with the outside air?
A. immune
B. vascular
C. respiratory
D. digestive
Answer: | C | sciq |
What is a double membrane of the nucleus that encloses the genetic material?
A. the nuclear compression
B. the complex envelope
C. the cell wall
D. the nuclear envelope
Answer: | D | sciq |
What is the highest taxon in the classification of living things?
A. a class
B. a phylum
C. a family
D. a domain
Answer: | D | sciq |
Animal-like protists are called what?
A. protozoa
B. bacteria
C. larvae
D. genus
Answer: | A | sciq |
Mating with no strong pair-bonds is called?
A. promiscuous
B. mutual
C. covalent
D. heterogeneous
Answer: | A | sciq |
Rna is especially important during synthesis of what?
A. mitochondria
B. glucose
C. sulfur
D. protein
Answer: | D | sciq |
Like other bryophytes, moss plants spend most of their life cycle as what?
A. gametophytes
B. protozoa
C. zygotes
D. copepods
Answer: | A | sciq |
What is the ring of hooks tapeworms use to attach themselves?
A. flagella
B. scolex
C. dewlap
D. cilia
Answer: | B | sciq |
What form because water erodes the outside of curves and deposits eroded material on the inside?
A. inlets
B. caverns
C. meanders
D. cascades
Answer: | C | sciq |
Which waterfall series is the largest on the planet?
A. iguassu falls
B. yosemite falls
C. angel falls
D. niagara falls
Answer: | A | sciq |
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