prompt stringlengths 51 646 | completion stringclasses 8 values | source stringclasses 3 values |
|---|---|---|
Ejaculation occurs when muscle contractions propel sperm from where?
A. epididymes
B. penis
C. urinary track
D. cervix
Answer: | A | sciq |
Adult sea stars have what kind of symmetry?
A. skeletal symmetry
B. radial symmetry
C. hydrological symmetry
D. biological symmetry
Answer: | B | sciq |
The four types of light receptors include different types of cones and what else?
A. rods
B. joints
C. neutrons
D. quarks
Answer: | A | sciq |
In what do substances combine chemically to form a new substance?
A. element
B. compound
C. suspension
D. component
Answer: | B | sciq |
What is the colorless gas with a sharp, pungent odor used in smelling salts?
A. ammonia
B. nitrogen
C. helium
D. hydrogen
Answer: | A | sciq |
Groupings of related organs in the human body are referred to as "organ" what?
A. functions
B. systems
C. conditions
D. bodies
Answer: | B | sciq |
The enzymes that participate in fatty acid catabolism are located in what?
A. atoms
B. carbohydrates
C. mitochondria
D. nucleus
Answer: | C | sciq |
Which organ of the body do large tapeworms attack or block?
A. heart
B. liver
C. kidneys
D. intestines
Answer: | D | sciq |
The sternum and 12 pairs of ribs with their costal cartilages make up what?
A. chest cage
B. thoracic cage
C. the core
D. heart cage
Answer: | B | sciq |
Which lipid is mainly responsible for narrowing arteries and causing the disease atherosclerosis?
A. saturated fat
B. cholesterol
C. unsaturated fat
D. monoglyceride
Answer: | B | sciq |
Physical or chemical changes are generally accompanied by a transfer of what?
A. color
B. energy
C. pressure
D. shape
Answer: | B | sciq |
What is the term for a dynamic equilibrium that is maintained in body tissues and organs?
A. homeostasis
B. homogeneity
C. metabolism
D. dormancy
Answer: | A | sciq |
What has a pseudocoelom and hydrostatic skeleton?
A. omnivores
B. roundworms
C. gymnosperms
D. vertebrates
Answer: | B | sciq |
In what two ways are volcanic eruptions characterized?
A. non-explosive and serious
B. minor and explosive
C. localized and general
D. explosive and non-explosive
Answer: | D | sciq |
Each enhancer is made up of short dna sequences called what?
A. distal control elements
B. pisttal control elements
C. fibrous control elements
D. electrolysis control elements
Answer: | A | sciq |
For a star to form, what force pulls gas and dust into the center of the nebula?
A. centrifugal force
B. motion
C. weight
D. gravity
Answer: | D | sciq |
What do you call elements that contain only atoms of one type of element?
A. noble gases
B. native elements
C. reactive elements
D. typical elements
Answer: | B | sciq |
The organ systems of the body work together to carry out life processes and maintain what?
A. freshness
B. homeostasis
C. consciousness
D. movement
Answer: | B | sciq |
This process of combining the wave functions for atomic orbitals is called what?
A. hybridization
B. assimilation
C. hydration
D. activation
Answer: | A | sciq |
Carbon is a nonmetal with a significantly higher electronegativity; it is therefore more likely to accept electrons in what kind of reaction?
A. isotope reaction
B. redox reaction
C. reversable reaction
D. catalyst reaction
Answer: | B | sciq |
What is denoted by the number above the chemical symbol of each element in a modern periodic table?
A. atomic number
B. metallic number
C. atomic weight
D. electron count
Answer: | A | sciq |
What does the tires meeting the road cause when a car accelerates?
A. thrust
B. friction
C. erosion
D. vibration
Answer: | B | sciq |
What gas is contributing to the greenhouse effect?
A. carbon dioxide
B. nitrogen
C. oxygen
D. sodium chloride
Answer: | A | sciq |
A complex interactions of hormones result in an edible fruit that entices animals that help disperse what?
A. rocks
B. seeds
C. water
D. pests
Answer: | B | sciq |
What are the cells caused that parasites spread through their host?
A. sporozoites
B. fungi spores
C. prokaryotes
D. protists
Answer: | A | sciq |
When can mutations occur in genes?
A. during dna replication
B. after rna replication
C. during rna replication
D. after dna replication
Answer: | A | sciq |
The sites of protein synthesis are tiny structures called?
A. protons
B. crystals
C. ribosomes
D. prokaryotes
Answer: | C | sciq |
Mollusks, annelids, and arthropods are considered what?
A. protostomes
B. detritivores
C. micelles
D. protisines
Answer: | A | sciq |
One of the simplest machines is the lever, which is a rigid bar pivoted at a fixed place called what?
A. fulcrum
B. wheel
C. caliper
D. sling
Answer: | A | sciq |
In essence, a virus is simply a nucleic acid surrounded by what?
A. a membrane coat
B. a protein coat
C. a polypeptide
D. a polymer coat
Answer: | B | sciq |
How does the number of protons compare to the number of electrons in an electrically neutral atom?
A. they are double
B. they are half
C. they are triple
D. they are equal
Answer: | D | sciq |
The scientific method is a method of research with defined steps that include experiments and careful what?
A. estimation
B. observation
C. discovery
D. consideration
Answer: | B | sciq |
The protist life cycle benefits by including what forms of reproduction?
A. atypical and sexual
B. asexual and sexual
C. ideal and sexual
D. asexual and biological
Answer: | B | sciq |
With what does cytokinins act in concert to stimulate cell division and influence the pathway of differentiation?
A. ribosomes
B. auxin
C. dna
D. hormone
Answer: | B | sciq |
Puberty and other physical changes occurs during which stage of development?
A. adolescence
B. childhood
C. adulthood
D. infancy
Answer: | A | sciq |
What makes organic compounds ubiquitous is the chemistry of their what?
A. dioxide shell
B. carbon core
C. dioxide core
D. carbon shell
Answer: | B | sciq |
What type of drugs can increase water loss by interfering with the recapture of solutes and water from the forming urine?
A. disassociates
B. diuretics
C. sedatives
D. hallucinogens
Answer: | B | sciq |
This type of tissue consists of bundles of xylem and phloem and transports fluids throughout the plant.
A. dermal tissue
B. nonvascular tissue
C. vascular tissue
D. cytoplasm
Answer: | C | sciq |
What is the scientific name of the thighbone, the longest, heaviest, and strongest bone in the body?
A. fibula
B. humerus
C. femur
D. tibia
Answer: | C | sciq |
What determines which type of precipitation falls?
A. air currents
B. air pressure
C. ground temperature
D. air temperature
Answer: | D | sciq |
Algae is a promising alternative to traditional crops for what type of fuels?
A. non-renewable
B. biofuel
C. fertilizer
D. fossil
Answer: | B | sciq |
Cancers derived from epithelial cells are referred to as what?
A. nodules
B. caricatures
C. adenomas
D. carcinomas
Answer: | D | sciq |
Vibrating objects such as drumheads produce what?
A. light
B. heat
C. negative ions
D. sound energy
Answer: | D | sciq |
What two element makes up a hyrdocarbon?
A. nitrogen and carbon
B. hydrogen and carbonite
C. carbon and hydrogen
D. helium and carbon
Answer: | C | sciq |
What are monosaccharides and disaccharides also called?
A. simple chemicals
B. complex sugars
C. simple sugars
D. basic sugars
Answer: | C | sciq |
Terrestrial biomes are associated with land, while aquatic ones are associated with what?
A. plants
B. water
C. blood
D. air
Answer: | B | sciq |
Different shapes often correlate with different what in cells?
A. systems
B. enzymes
C. types
D. functions
Answer: | D | sciq |
What structure is found at the top of the head of the sperm that helps it penetrate and fertilize the egg?
A. terminal disc
B. axial filament
C. centriole
D. acrosome
Answer: | D | sciq |
What makes up most of biological tissues?
A. air
B. muscle
C. bone
D. water
Answer: | D | sciq |
What occurs when some substances change chemically to other substances?
A. toxic reaction
B. hormonal reaction
C. spontaneous mutation
D. chemical reaction
Answer: | D | sciq |
What type of butterfly do birds avoid eating since it makes them sick?
A. sphingidae
B. pyralidae
C. noctuidae
D. monarch butterflies
Answer: | D | sciq |
Birds possess a cloaca, a structure that allows water to be reabsorbed from waste back into this?
A. skin
B. intestines
C. eggs
D. blood stream
Answer: | D | sciq |
What contain organelles common to other cells, such as a nucleus and mitochondria, and also have more specialized structures, including dendrites and axons?
A. muscle cells
B. neurons
C. blood cells
D. follicles
Answer: | B | sciq |
Hurricanes and winter storms both develop from what, which often form when the jet stream dips south in the winter?
A. tides
B. waves
C. cyclones
D. typhoons
Answer: | C | sciq |
Which body system controls all the others by sending electrical messages?
A. the specialized system
B. the nervous system
C. the localized system
D. the endocrine system
Answer: | B | sciq |
What occurs when water on the surface changes to water vapor?
A. photosynthesis
B. evaporation
C. condensation
D. oxidation
Answer: | B | sciq |
What is the position of rock layers and the relative ages called?
A. bifurcation
B. metamorphism
C. superposition
D. diffraction
Answer: | C | sciq |
What is the field of biology that focuses on the study of inheritance in humans?
A. computational biology
B. relational biology
C. generational biology
D. human genetics
Answer: | D | sciq |
The acidity of a solution is typically assessed experimentally by measurement of its what?
A. mass
B. density
C. ph
D. color
Answer: | C | sciq |
Where is chemical energy stored?
A. nucleus
B. atom bonds
C. cell wall
D. ribosomes
Answer: | B | sciq |
What kind of fuels include coal, oil, and natural gas?
A. sediment
B. ancient
C. storage
D. fossil
Answer: | D | sciq |
What do you call the slope that forms the edge of the continent?
A. the prevalent slope
B. the cataclysmic slope
C. the continental slope
D. the land slope
Answer: | C | sciq |
What do contour lines that are close together indicate?
A. flat slope
B. close slope
C. deep slope
D. steep slope
Answer: | D | sciq |
What is the most common type of cancer developed in children?
A. anemia
B. stomach cancer
C. leukemia
D. lung cancer
Answer: | C | sciq |
How many chambers are in the heart?
A. eight
B. two
C. five
D. four
Answer: | D | sciq |
The central vacuole maintains turgor pressure against what?
A. the cell wall
B. the cell addition
C. the cell multiplication
D. the cell move
Answer: | A | sciq |
In the small intestine, chyme mixes with bile, which emulsifies what substances?
A. fats
B. sugars
C. acids
D. proteins
Answer: | A | sciq |
Which electromagnetic waves are the most energetic of all electromagnetic waves?
A. sunlight rays
B. ultraviolet rays
C. gamma rays
D. plasma rays
Answer: | C | sciq |
Glycolysis harvests chemical energy by oxidizing glucose to what?
A. pyruvate
B. chlorophyll
C. oxygen
D. cellulose
Answer: | A | sciq |
What is the term for the most abundant species in a community, characterized by high competitive abilities?
A. keystone species
B. dominant species
C. carnivores
D. merging species
Answer: | B | sciq |
Salt-water biomes in the ocean are called what?
A. ocean biomes
B. marine organelles
C. marine biomes
D. marine species
Answer: | C | sciq |
What occurs before the endometrium thickens in estrous cycles?
A. pregnancy
B. ovulation
C. copulation
D. fertilization
Answer: | B | sciq |
Structures like the human tail bone and whale pelvis are called what?
A. adaptations
B. parasitic structures
C. primordial structures
D. vestigial structures
Answer: | D | sciq |
Hazardous waste is material that is toxic, chemically active, corrosive, or what?
A. decomposed
B. flammable
C. inactive
D. organic
Answer: | B | sciq |
Which component of the electron transport chain does cyanide inhibit?
A. mitochondrial matrix
B. succinate dehydrogenase
C. cytochrome c oxidase
D. adenosine diphosphate
Answer: | C | sciq |
Diseases of this system include epilepsy, strokes, and alzheimer’s disease
A. infectious system
B. endocrine system
C. circulatory system
D. nervous system
Answer: | D | sciq |
About how full is the outer energy level in metalloids?
A. nearly empty
B. half full
C. a quarter full
D. three-fourth full
Answer: | B | sciq |
Which chemical element is the basis of all life on earth?
A. nitrogen
B. oxygen
C. hydrogen
D. carbon
Answer: | D | sciq |
What structures of the cardiovascular system help regulate body processes by either constricting or dilating?
A. capillaries
B. muscles
C. cartilage
D. blood vessels
Answer: | D | sciq |
What is the term for the class of ectothermic, four-legged vertebrates that produce amniotic eggs?
A. Turtles
B. amphibians
C. reptiles
D. mammals
Answer: | C | sciq |
The goal of proteomics is to identify or compare what substances expressed from a given genome under specific conditions, study the interactions between them, and use the information to predict cell behavior or develop drug targets?
A. rna
B. proteins
C. cells
D. dna
Answer: | B | sciq |
Radiometric dating methods, such as carbon-14 dating depend on what type of decay?
A. radioactive
B. microwave
C. nuclear
D. carbon
Answer: | A | sciq |
What is the brightest star in the orion constellation?
A. omicron
B. sol
C. rigel
D. natel
Answer: | C | sciq |
Which organelle specific to plant cells is responsible for photosynthesis?
A. the lipid
B. the chloroplast
C. the vacuole
D. the mitochondria
Answer: | B | sciq |
What is another word for thermal energy?
A. humidity
B. heat
C. solar
D. temperature
Answer: | B | sciq |
Roots grow in length and width from the primary and secondary what?
A. leaf
B. pistil
C. frill
D. meristem
Answer: | D | sciq |
What often form symbiotic associations with much larger organisms?
A. eukaryotes
B. prokaryotes
C. viruses
D. protists
Answer: | B | sciq |
Name the fever that is caused by a virus that has antigens similar to molecules in human heart tissues.
A. yellow fever
B. rheumatic fever
C. chronic fever
D. Dengue fever
Answer: | B | sciq |
What is the smallest planet in our solar system?
A. Earth
B. mercury
C. Mars
D. Jupiter
Answer: | B | sciq |
What is the term for when a substance boils and changes to gas?
A. boiling point
B. changing point
C. reaction point
D. activation point
Answer: | A | sciq |
Where are hormones released?
A. lungs
B. brain
C. liver
D. bloodstream
Answer: | D | sciq |
The union of gametes is called?
A. pollination
B. fertilization
C. migration
D. fusion
Answer: | B | sciq |
What type of behavior occurs naturally in all animals of a given species?
A. innate
B. learned
C. stimulated
D. acquired
Answer: | A | sciq |
What parts of comets make them easy to see?
A. novas and tails
B. craters and tails
C. comas and tails
D. arcs and tails
Answer: | C | sciq |
What gives the body shape and support?
A. muscles
B. gravity
C. skeleon
D. organs
Answer: | C | sciq |
What do you call sound that has a wave frequency higher than the human ear can detect?
A. hypersonic sound
B. supersonic sound
C. dynamic sound
D. ultrasound
Answer: | D | sciq |
Plants not only contribute food but what else for organisms?
A. carbon
B. oxygen
C. hydrogen
D. dioxide
Answer: | B | sciq |
Substances that act as both weak acids and bases are said to be what?
A. amphoteric
B. hygroscopic
C. atmospheric
D. amphiphilic
Answer: | A | sciq |
What is the medical process of removing wastes and excess water from the blood by diffusion and ultrafiltration called?
A. digestion
B. tumors
C. dialysis
D. arthritis
Answer: | C | sciq |
What is the "a" horizon commonly known as?
A. sediment
B. core
C. crust
D. topsoil
Answer: | D | sciq |
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