prompt
stringlengths 51
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stringclasses 8
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stringclasses 3
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|---|---|---|
What does the kelvin scale measure?
A. height
B. oxygen
C. precipitation
D. temperature
Answer:
|
D
|
sciq
|
Ash that enters the air naturally as a result of a volcano eruption is classified as what kind of pollutant?
A. secondary pollutant
B. primary pollutant
C. thick pollutant
D. natural pollutant
Answer:
|
B
|
sciq
|
What happens when an increase in temperature of a gas in a rigid container happens?
A. gas explodes
B. container shrinks
C. pressure decreases
D. pressure increases
Answer:
|
D
|
sciq
|
Which reaction between alkyl halides and ammonia makes alkylamines?
A. conductive substitution reactions
B. nitrogen catabolism
C. nucleophilic substitution reactions
D. nucleophobic reactions
Answer:
|
C
|
sciq
|
Genes are organized to make the control of gene expression easier. the promoter region is immediately upstream of this?
A. signalling sequence
B. coding sequence
C. propagate sequence
D. organic sequence
Answer:
|
B
|
sciq
|
Which phylum is made up of segmented worms such as earthworms?
A. annelida
B. arthropod
C. nematoda
D. chordata
Answer:
|
A
|
sciq
|
What is the transfer of thermal energy between substances called?
A. Radiation
B. Permeation
C. Diffusion
D. heat
Answer:
|
D
|
sciq
|
What functional units of chromosomes determine specific characteristics by coding for specific proteins?
A. DNA
B. genes
C. cells
D. chromosomes
Answer:
|
B
|
sciq
|
Aside from light, incandescent light bulbs also give off what that wastes energy?
A. humidity
B. heat
C. temperature
D. electricity
Answer:
|
B
|
sciq
|
What is an alpha particle with two protons and two neutrons called?
A. helium nucleus
B. hydrogen nucleus
C. hydrogen nucleus
D. chloride nucleus
Answer:
|
A
|
sciq
|
Just as the reaction of a diol and a diacid forms a polyester, the reaction of a diacid and a diamine yields this?
A. polyethylene
B. acetone
C. phenol
D. polyamide
Answer:
|
D
|
sciq
|
Structural rearrangements of what include partial duplications, deletions, inversions, and translocations; duplications and deletions often produce offspring that survive but exhibit physical and mental abnormalities?
A. chromosomes
B. cells
C. neutrons
D. phenotypes
Answer:
|
A
|
sciq
|
The e. coli chromosome, like many other bacterial chromosomes, is what shape?
A. square
B. circular
C. oval
D. triangular
Answer:
|
B
|
sciq
|
What is the force of attraction between two masses?
A. electricity
B. momentum
C. inertia
D. gravity
Answer:
|
D
|
sciq
|
Chordates include vertebrates and invertebrates that have what?
A. a notochord
B. a endoderm
C. a phloem
D. chordate
Answer:
|
A
|
sciq
|
Nearly how many millions of people die yearly due to air pollution?
A. five million
B. eight million
C. two million
D. fifty million
Answer:
|
A
|
sciq
|
What instrument is used to record the length and strength of an earthquake?
A. transmitter
B. epicenter
C. seismograph
D. microscope
Answer:
|
C
|
sciq
|
Skeletal muscles must work in pairs to move bones back and forth at a joint because they can only do what?
A. vibrate
B. pull
C. contract
D. expand
Answer:
|
C
|
sciq
|
What type of molecules are secreted by the cell in local signaling?
A. negaitive molecules
B. word molecules
C. messenger molecules
D. sleeping molecules
Answer:
|
C
|
sciq
|
Pulmonary ventilation in mammals occurs via what?
A. inflammation
B. osmosis
C. inhalation
D. ingestion
Answer:
|
C
|
sciq
|
Chemical signals are received by the target cell on what?
A. receptor proteins
B. acidic proteins
C. parent proteins
D. inceptor proteins
Answer:
|
A
|
sciq
|
What kind of organisms are prokaryotes?
A. viral
B. multicellular organisms
C. single-celled
D. single - flagellated
Answer:
|
C
|
sciq
|
What act like filters and remove pathogens from lymph?
A. tissue nodes
B. lymph nodes
C. electric nodes
D. spine nodes
Answer:
|
B
|
sciq
|
What are the primary cells of adaptive immune response?
A. white blood cells
B. red blood cells
C. erythrocytes
D. lymphocytes
Answer:
|
D
|
sciq
|
What term refers to the friction of fluid, within itself and its surroundings?
A. salinity
B. volume
C. elasticity
D. viscosity
Answer:
|
D
|
sciq
|
What do you call a unique substance formed when two or more elements combine chemically?
A. solution
B. component
C. compound
D. mixture
Answer:
|
C
|
sciq
|
Caves form over time when what causes rocks like limestone to dissolve?
A. weather
B. water
C. air
D. acid
Answer:
|
B
|
sciq
|
Cycloalkanes are hydrocarbons whose molecules are closed rings rather than straight or branched chains. a cyclic hydrocarbon is a hydrocarbon with a ring of these?
A. barium atoms
B. hydrogen atoms
C. oxygen atoms
D. carbon atoms
Answer:
|
D
|
sciq
|
Speciation, convergent evolution, and coevolution are types of what process?
A. devolution
B. macroevolution
C. systemic evolution
D. microevolution
Answer:
|
B
|
sciq
|
In what state do ionic compounds best conduct electricity?
A. gas
B. solid
C. liquid
D. plasma
Answer:
|
C
|
sciq
|
What type of protein fibers in the cytoskeleton are the narrowest?
A. macrophages
B. mitosis
C. capillaries
D. microfilaments
Answer:
|
D
|
sciq
|
Which layer of the earth is molten?
A. the metallic core
B. the mantle
C. the outer core
D. the inner core
Answer:
|
C
|
sciq
|
What is the general name for a solid material that is formed via a natural process?
A. plasma
B. chemical
C. gas
D. mineral
Answer:
|
D
|
sciq
|
In a photosystem, pigments in the light-harvesting complex pass light energy to two special molecules of what in the reaction center?
A. chlorophyll
B. nutrient
C. carbonate
D. calcium
Answer:
|
A
|
sciq
|
What branch of science is the study of matter and energy?
A. physical science
B. natural science
C. unnatural science
D. negative science
Answer:
|
A
|
sciq
|
What make us sick when they become human parasites?
A. protozoa
B. larvae
C. detritus
D. viruses
Answer:
|
A
|
sciq
|
The tendency of an object to resist a change in its motion is called?
A. friction
B. magnetism
C. inertia
D. gravitation
Answer:
|
C
|
sciq
|
Contributing to the blood-brain barrier is one of the jobs of glial cells, which support neurons in what system?
A. circulatory system
B. digestive system
C. peripheral nervous system
D. central nervous system
Answer:
|
D
|
sciq
|
During the condensation reaction of sugars what is removed, linking the two sugars?
A. water
B. air
C. hormones
D. chlorophyll
Answer:
|
A
|
sciq
|
What develops into embryos inside seeds, from which the next sporophyte generation grows?
A. zygotes
B. pupa
C. buds
D. secretions
Answer:
|
A
|
sciq
|
A change in temperature with distance is called a what?
A. oxygen gradient
B. temperature gradient
C. solution gradient
D. speed gradient
Answer:
|
B
|
sciq
|
What sac, which was sitting on top of the flat embryo, envelops the embryo as it folds?
A. amniotic sac
B. uterus
C. epithelial sac
D. umbilical sac
Answer:
|
A
|
sciq
|
Catecholamines are a class of amine hormones synthesised form which amino acid?
A. epinephrine
B. phenylalanine
C. tyrosine
D. dopamine
Answer:
|
C
|
sciq
|
Regulation of hormone production hormone levels are primarily controlled through negative feedback, in which rising levels of a hormone inhibit its?
A. recent release
B. Limited release
C. further release
D. particular release
Answer:
|
C
|
sciq
|
Androgen secretion and sperm production are both controlled by hypothalamic and which other hormones?
A. pituitary
B. salivary
C. adrenal
D. Testes
Answer:
|
A
|
sciq
|
The sum of the superscripts in an electron configuration is equal to the number of electrons in that atom, which is in turn equal to what number?
A. metallic number
B. shell number
C. atomic number
D. orbital number
Answer:
|
C
|
sciq
|
What part of the brain controls body position, coordination, and balance?
A. cerebrum
B. right brain
C. cerebellum
D. brain stem
Answer:
|
C
|
sciq
|
When light transfers its energy to objects, this is known as what?
A. condensation
B. absorption
C. evaporation
D. accumulation
Answer:
|
B
|
sciq
|
What do most amphibians breathe with as larvae?
A. nasal passages
B. pores
C. lungs
D. gills
Answer:
|
D
|
sciq
|
The chemical used by the ants to weed their garden turns out to be what kind?
A. nitric acid
B. formic acid
C. sealant acid
D. sulfide acid
Answer:
|
B
|
sciq
|
A common age-related bone disease in which bone density and strength is decreased is know as what?
A. fibrosis
B. Stomach
C. allergies
D. osteoporosis
Answer:
|
D
|
sciq
|
Some fruit, like peaches, only have one big seed. what is this seed called?
A. the core
B. the middle
C. the seed
D. the pit
Answer:
|
D
|
sciq
|
Dragonflies were one of the first insects to do what?
A. sexually reproduce
B. fly
C. swim
D. fight
Answer:
|
B
|
sciq
|
Intestinal cells combine with proteins to create what?
A. chondrocytes
B. amino acids
C. lipoproteins
D. chylomicrons
Answer:
|
D
|
sciq
|
Dutch elm trees used to be common, beautiful trees in the united states. now most of them have been killed by what?
A. dutch elm disease
B. carbon dioxide
C. cancer
D. beetles
Answer:
|
A
|
sciq
|
Two major types of fungus-like protists are slime molds and which other?
A. black molds
B. foul molds
C. green molds
D. water molds
Answer:
|
D
|
sciq
|
What are broken down during digestion to provide the amino acids needed for protein synthesis?
A. metabolytes
B. sugars
C. dietary proteins
D. carbohydrates
Answer:
|
C
|
sciq
|
A group of atoms that results when one hydrogen atom is removed from an alkane is referred to as what?
A. chloride group
B. alkyl group
C. hyrdrogen group
D. nitrate group
Answer:
|
B
|
sciq
|
What is the term for stored energy that an object has due to its position or shape?
A. kinetic energy
B. mechanical energy
C. potential energy
D. vertical energy
Answer:
|
C
|
sciq
|
What force is greater on rougher surfaces than smooth surfaces?
A. acceleration
B. friction
C. gravity
D. tension
Answer:
|
B
|
sciq
|
Nitrogen is a very important element to living things, because it is part of nucleotides and amino acids that are the building blocks of nucleic acids and these?
A. proteins
B. follicles
C. lipids
D. cells
Answer:
|
A
|
sciq
|
In the mouth, enzymes present in what begin to chemically break down food?
A. blood
B. lymph
C. acid
D. saliva
Answer:
|
D
|
sciq
|
Unlike the cells of plants and fungi, animal cells lack what?
A. nuclei
B. cell wall
C. flagella
D. mitochondria
Answer:
|
B
|
sciq
|
Because alkali metals are so reactive, they are found in nature only in ________ with other elements?
A. combination
B. cooperation
C. competition
D. isolation
Answer:
|
A
|
sciq
|
What is the plane that divides the body or an organ vertically into right and left sides?
A. anatomical plane
B. median plane
C. parasagittal plane
D. sagittal plane
Answer:
|
D
|
sciq
|
What are the organs work together to allow us to see?
A. nose
B. lungs
C. heart
D. brain and eyes
Answer:
|
D
|
sciq
|
The brain develops from this early tube structure and gives rise to specific regions of the adult brain. as the neural tube grows and differentiates, it enlarges into three vesicles that correspond to the forebrain, midbrain, and this?
A. hindbrain
B. anteriorbrain
C. astrobrain
D. rearbrain
Answer:
|
A
|
sciq
|
Biotechnology uses what to solve problems?
A. biology
B. geology
C. ecology
D. psycology
Answer:
|
A
|
sciq
|
What are hurricanes called in the pacific?
A. twisters
B. tornados
C. rainstorms
D. typhoons
Answer:
|
D
|
sciq
|
What is the organ in which gas exchanges take place between blood and air?
A. heart
B. kidney
C. skin
D. lungs
Answer:
|
D
|
sciq
|
What branch of science deals with the effects people have on the environment?
A. cultural science
B. environmental science
C. ecological science
D. physical science
Answer:
|
B
|
sciq
|
Sickle cell anemia is what type of disorder?
A. spontaneous mutation
B. autosomal dominant disorder
C. autosomal recessive disorder
D. nongenetic disorder
Answer:
|
C
|
sciq
|
Which region is just posterior to the mouth?
A. the esophagus
B. the diaphragm
C. the duodenum
D. the pharynx
Answer:
|
D
|
sciq
|
What is the collective travel of sheep known as?
A. load
B. den
C. gaggle
D. herd
Answer:
|
D
|
sciq
|
What are these examples of: a person riding a carousel and a skydiver in free fall?
A. vibration
B. acceleration
C. centrifugal force
D. centripetal force
Answer:
|
B
|
sciq
|
Elements below the second period, such as silicon, do not form what as readily as second-period elements, and when they do form, they are weaker than those formed by second-period elements?
A. covalent bonds
B. n bonds
C. magnetic bonds
D. k. bonds
Answer:
|
B
|
sciq
|
Through what method or methods of fertilization do amphibians sexually reproduce?
A. mitosis and meiosis
B. spawning or budding
C. external or internal
D. asexual or sexual
Answer:
|
C
|
sciq
|
The distance between corresponding points of adjacent waves is known as the __________
A. wavelength
B. absorption
C. amplitude
D. bandwidth
Answer:
|
A
|
sciq
|
Which system consists of all the nervous tissue that lies outside the central nervous system?
A. peripheral nervous system
B. spinal cord
C. auxiliary nervous system
D. cerebral cortex
Answer:
|
A
|
sciq
|
What mechanism is used by living organisms to pass along genes?
A. dna
B. digestion
C. chlorophyll
D. protein
Answer:
|
A
|
sciq
|
The third line of defense of the immune system is called?
A. the sudden response
B. the asymptomatic response
C. the malignant response
D. the immune response
Answer:
|
D
|
sciq
|
What's it called when gases turn back into liquids?
A. diffusion
B. dehydration
C. condensation
D. evaporation
Answer:
|
C
|
sciq
|
What is a molecule made up of two subunits?
A. chloride
B. enzyme
C. dimer
D. acid
Answer:
|
C
|
sciq
|
The pulmonary artery carries deoxygenated blood into the lungs from this?
A. bladder
B. brain
C. heart
D. legs
Answer:
|
C
|
sciq
|
All of the living things in an area and the nonliving environment together make up what?
A. ecosystem
B. taiga
C. biome
D. biosphere
Answer:
|
A
|
sciq
|
What areas of the planet are most birds native to?
A. mountainous
B. desert
C. tropical
D. tundra
Answer:
|
C
|
sciq
|
What is the basis of enzyme classification?
A. reactions they catalyze
B. their mass
C. their shape
D. their color
Answer:
|
A
|
sciq
|
Scientists use the principles of what to make predictions, which they then test?
A. their teachers
B. their guesses
C. their faith
D. their hypothesis
Answer:
|
D
|
sciq
|
How many membranes form the mitochondrion structure of a cell?
A. two
B. three
C. one
D. five
Answer:
|
A
|
sciq
|
Lava that enters the water is called what?
A. pillow lava
B. saltwater lava
C. magma runoff
D. lava flow
Answer:
|
A
|
sciq
|
What do we call plants that shed their leaves seasonally each year?
A. perennials
B. lush plants
C. annuals
D. deciduous plants
Answer:
|
D
|
sciq
|
What do some animals use to get a feel for their environment?
A. neuroreceptors
B. mechanoreceptors
C. nociceptors
D. fibroblasts
Answer:
|
B
|
sciq
|
Gas particles are constantly colliding with each other and the walls of a container, and these collisions are elastic, so there is no net loss of what?
A. velocity
B. energy
C. heat
D. temperature
Answer:
|
B
|
sciq
|
How do birds learn to avoid eating monarch butterflies?
A. digestion
B. temperature
C. instinct
D. conditioning
Answer:
|
D
|
sciq
|
What part of the sperm contains the genetic material?
A. the " tail "
B. the " brain "
C. the " body "
D. the "head"
Answer:
|
D
|
sciq
|
Multiple sclerosis, huntington’s disease, and parkinson’s disease all affect what body system?
A. nervous system
B. reproductive system
C. lymph system
D. circulatory system
Answer:
|
A
|
sciq
|
The force that blood exerts upon the walls of the blood vessels or upon the chambers of the heart is known as blood what?
A. vaccuum
B. squeeze
C. push
D. pressure
Answer:
|
D
|
sciq
|
What is the term for the amount of internal energy that the substance can store?
A. temperature capacity
B. humidity capacity
C. heat capacity
D. mass capacity
Answer:
|
C
|
sciq
|
An aquifer is an underground layer of rock that is saturated with what?
A. ocean water
B. wastewater
C. oil
D. groundwater
Answer:
|
D
|
sciq
|
Oysters require a certain minimum population density because they must be in close proximity to do this?
A. reproduce
B. replicate
C. feed
D. multiply
Answer:
|
A
|
sciq
|
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