question stringlengths 68 502 | answer stringclasses 4
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Question: Involved in balance, the semicircular canals are parts of what organs?
Options:
A. ears
B. eyes
C. ovaries
D. lungs | A |
Question: Injuries can be prevented by getting proper what?
Options:
A. drugs and food
B. water and clothing
C. exercise and training
D. rest and recovery | D |
Question: Some leaves are attached to the plant stem by a petiole. leaves that do not have a petiole and are directly attached to the plant stem are called this?
Options:
A. sheath leaves
B. sessile leaves
C. globular leaves
D. transverse leaves | B |
Question: What is water vapor density known as?
Options:
A. humidity
B. thickness
C. ambiance
D. density | A |
Question: What is the name for the transfer of thermal energy between particles of matter that are touching?
Options:
A. induction
B. conduction
C. activation
D. convection | B |
Question: The mean free path for a gaseous molecule will be hundreds of times the what of the molecule?
Options:
A. weight
B. density
C. variation
D. diameter | D |
Question: What is the most common fossil fuel?
Options:
A. uranium
B. coal
C. diesel oil
D. methane | B |
Question: The weather conditions in an area over time is also called a what?
Options:
A. climate
B. biome
C. landscape
D. habitat | A |
Question: Chemical symbols are useful to concisely represent the elements present in a substance. the letters usually come from the name of what?
Options:
A. element
B. discoverer
C. month
D. scientist | A |
Question: Cell transport refers to the movement of substances across what structure?
Options:
A. chloroplasm
B. phloem
C. cell membrane
D. cell wall | C |
Question: What term describes the rate at which a device changes electric current to another form of energy?
Options:
A. kilowatts
B. electric power
C. voltage
D. kinetic energy | B |
Question: What happens when a sodium atom loses an electron?
Options:
A. combines with hydrogen
B. becomes sodium ion
C. gains a proton
D. becomes calcium | B |
Question: When a fluorine atom gains an electron, it becomes a negative what?
Options:
A. hydrogen ion
B. fluoride ion
C. sulfide ion
D. potassium ion | B |
Question: The endocrine system consists of cells, tissues, and organs that secrete what critical to homeostasis?
Options:
A. hormones
B. saliva
C. antibodies
D. acids | A |
Question: What is formed when two dna strands link together in an antiparallel direction and are twisted?
Options:
A. anti-helix
B. RNA
C. double helix
D. guanine | C |
Question: Particles of a gas are constantly moving and bumping into things. this gives gases what?
Options:
A. velocity
B. strength
C. resistance
D. pressure | D |
Question: Which part of a leaf contains openings known as stomata, through which the exchange of gases takes place?
Options:
A. stoma
B. epidermis
C. phloem
D. cuticle | B |
Question: Which system transports oxygens to cells?
Options:
A. vascular system
B. circulatory system
C. nervous system
D. oxy system | B |
Question: What is the part of a plant whose primary role is to collect sunlight and make food by photosynthesis?
Options:
A. stems
B. leaves
C. roots
D. seeds | B |
Question: Technically, any redox reaction can be set up to make a what?
Options:
A. Black Cell
B. skaht cell
C. blocky cell
D. voltaic cell | D |
Question: What percentage of all species that ever lived on earth have gone extinct?
Options:
A. 50%
B. 93 %
C. 25%
D. 99% | D |
Question: What is the diffusion of water known as?
Options:
A. evaporation
B. osmosis
C. electrolysis
D. hemostasis | B |
Question: What is it called when plants release water vapor through their leaves?
Options:
A. eutrophication
B. transpiration
C. photosynthesis
D. evaporation | B |
Question: Earth goes through regular changes in its position relative to?
Options:
A. the sun
B. the moon
C. saturn
D. mars | A |
Question: A symporter carries how many different molecules or ions in the same direction?
Options:
A. four
B. three
C. one
D. two | D |
Question: Large amounts of fuel are stored in skeletal muscles, adipose tissues and what organ?
Options:
A. skin
B. liver
C. spleen
D. kidney | B |
Question: Intrusive igneous rocks cool from magma slowly in the crust and have large what?
Options:
A. coal deposits
B. crystals
C. atoms
D. pores | B |
Question: What is the term used for the ability of salamanders to grow back lost limbs and other body parts?
Options:
A. expansion
B. transformation
C. extraction
D. regeneration | D |
Question: A winter storm is called what?
Options:
A. blizzard
B. gale
C. tempest
D. snow storm | A |
Question: The trochophre, a unique larval form, is found in the life cycle of which animal classification.
Options:
A. eels
B. mollusks
C. sharks
D. coral | B |
Question: Within organs, arteries branch into what small vessels that convey blood to the capillaries?
Options:
A. blood valves
B. arterioles
C. Metarterioles
D. aeortic vessels | B |
Question: Diamond is extremely hard because of the strong bonding between ______ in all directions?
Options:
A. liquid atoms
B. consistent atoms
C. hydrogen atoms
D. carbon atoms | D |
Question: Vertebrates. from the smallest of fish to us. one of the main features we all have in common is our what?
Options:
A. laying eggs
B. backbone
C. warm blood
D. hair | B |
Question: The fight or flight response and similar responses are controlled by what part of the nervous system?
Options:
A. cells
B. central nervous system
C. spinal cord
D. autonomous | D |
Question: Deposition refers to when a gas changes to what state?
Options:
A. liquid
B. plasma
C. solid
D. half liquid half gas | C |
Question: Nuclear changes occur with a simultaneous release of what, and a slight drop in mass?
Options:
A. energy
B. hydrogen
C. mineral
D. oil | A |
Question: The way of learning that involves reward and punishment is called?
Options:
A. foolish
B. mixed
C. conditioning
D. pressure | C |
Question: The sodium-potassium pump is an active transport pump that exchanges sodium ions for what?
Options:
A. oxygen ions
B. chlorine ions
C. nitrogen ions
D. potassium ions | D |
Question: Mass multiplied by velocity equals what force?
Options:
A. kinetic energy
B. momentum
C. bounce
D. inertia | B |
Question: How many years ago did early amniotes diverge into two groups?
Options:
A. 20 million years
B. 320 million years
C. .175 million years
D. .416 million years | B |
Question: The intensity or rate of radiation emission _________ with temperature?
Options:
A. randomly fluctuates
B. increases
C. decreases
D. does not vary | B |
Question: For the most part, cognitive functions reside where?
Options:
A. the cortex
B. the heart
C. the limbic system
D. the spine | A |
Question: What is the term for the force exerted by circulating blood on the walls of blood vessels?
Options:
A. blood energy
B. blood pressure
C. heart pressure
D. circulation pressure | B |
Question: What does the precise pattern of a crystal depend on?
Options:
A. compound
B. chance
C. age
D. mass | A |
Question: Learning to get used to something after being exposed to it for a while is associated with what kind of learning?
Options:
A. association
B. dissociation
C. habituation
D. assimilation | C |
Question: Is the digestive tract of many sharks longer or shorter than many other vertebrates?
Options:
A. narrower
B. longer
C. shorter
D. heavier | C |
Question: In the case of the thyroid hormone pathway, thyroid hormone itself carries out what kind of feedback?
Options:
A. continued
B. positive
C. effective
D. negative | D |
Question: What increases the size of a population's gene pool?
Options:
A. mass extinction
B. natural selection
C. microbes
D. mutations | D |
Question: The heart and the arteries and veins are associated with what system of the body?
Options:
A. metabolism
B. respiration
C. digestion
D. cardiovascular | D |
Question: What do scientists believe are the oldest eukaryotes?
Options:
A. arthropods
B. protists
C. prokaryotes
D. worms | B |
Question: What are used to balance chemical equations?
Options:
A. isotopes
B. outputs
C. coefficients
D. densities | C |
Question: Endothermic and exothermic reactions differ in whether the products or reactants store more of what?
Options:
A. Thermal energy
B. chemical energy
C. Motion energy
D. Kinetic Energy | B |
Question: What is the conversion of metals from their ores to more useful forms called?
Options:
A. metallurgy
B. thermodynamics
C. nanotechnology
D. crystallography | A |
Question: What is the predominant stage in the life cycle of most scyphozoans?
Options:
A. gamete
B. spore
C. hydra
D. medusa | D |
Question: The reaction of an alkyl halide with an inorganic hydroxide base at elevated temperature produces what?
Options:
A. blood
B. yeast
C. an alcohol
D. methane | C |
Question: What sequence is the primary structure of a protein?
Options:
A. amino acid sequence
B. processed acid sequence
C. proteins acid sequence
D. nucleic acid sequence | A |
Question: What are used to lift large masses of magnetic materials such as scrap iron, rolls of steel, and auto parts?
Options:
A. electromagnets
B. screws
C. Tape
D. Glue | A |
Question: Carbon behaves as a metal because it conducts which two things well?
Options:
A. electricity and oxygen
B. heat and water
C. heat and electricity
D. heat and magnetism | C |
Question: What is the first direct action of growth hormone?
Options:
A. stimulation of monoglyceride production
B. stimulation of triglyceride breakdown
C. stimulation of triglyceride production
D. stimulation of monoglyceride breakdown | B |
Question: What contains the spore-forming asci?
Options:
A. flagella
B. sporozoa
C. the ascocarps
D. mushroom cap | C |
Question: Fruit fly and brine shrimp hox genes have evolved independently for how long?
Options:
A. one billion
B. 400 million years
C. 60.000 million years
D. 100.32 million years | B |
Question: Yolk is a very fragile substance found in the eggs of reptiles and needs protection. what serves as protection for the yolk?
Options:
A. yolk sac
B. eye sac
C. dish sac
D. fish sac | A |
Question: What do tadpoles change into?
Options:
A. reptiles
B. mud puppies
C. toads
D. adult frogs | D |
Question: Earthworms and segmented worms belong to what phylum?
Options:
A. bryozoa
B. annelida
C. protazoa
D. nematoda | B |
Question: What are most stis caused by?
Options:
A. parasites
B. bacteria
C. viruses
D. vaccines | B |
Question: What is the term for matter that does not let any light pass through it, whether it absorbs light, reflects light, or does both?
Options:
A. devoid
B. artificial
C. obscene
D. opaque | D |
Question: Rain dissolves fertilizer in the soil, what carries it away?
Options:
A. runoff?
B. fossils
C. carbon ?
D. clouds | A |
Question: Each vertebral body has a large hole in the center through which the nerves of what pass?
Options:
A. spinal cord
B. steering cord
C. Brain Cord
D. layers cord | A |
Question: Rust consists of oxides of what element?
Options:
A. Gold
B. Copper
C. Aluminum
D. iron | D |
Question: Rising air currents carry water vapor into what?
Options:
A. atmosphere
B. ionosphere
C. stratosphere
D. troposphere | A |
Question: Echinoderms have what type of body symmetry?
Options:
A. Translational symmetry
B. Reflectional symmetry
C. Rotational symmetry
D. radial symmetry | D |
Question: What is used during filtration to push fluids and solutes, from higher pressure areas to lower pressure areas?
Options:
A. hydrostatic pressure gradient
B. limited pressure gradient
C. magnesium pressure gradient
D. constructs pressure gradient | A |
Question: How many pathways do plants have for carbon fixation?
Options:
A. three
B. two
C. one
D. four | A |
Question: What type of substance is any matter that has a fixed chemical composition and characteristic properties?
Options:
A. versatile chemical substance
B. seawater chemical substance
C. pure chemical substance
D. physical substance | C |
Question: Where are sperm produced in the process of spermatogenesis?
Options:
A. ovaries
B. intestines
C. testes
D. penis | C |
Question: What type of energy does chemosynthesis use to make food?
Options:
A. carbon energy
B. chemical energy
C. CHEMICAL energy
D. GRAVITATIONAL energy | B |
Question: The polymerase chain reaction is a way of making copies of what?
Options:
A. a form
B. a method
C. a gene
D. an enzyme | C |
Question: Energy transfer between what kinds of levels is generally rather inefficient?
Options:
A. producer
B. trophic
C. apex
D. secondary | B |
Question: What kind of conditions are often inherited as simple recessive traits?
Options:
A. genetic disorders
B. genetic diversivers
C. genetic neurotransmitters
D. genetic ratios | A |
Question: Without dinoflagellate symbionts, corals lose algal pigments in a process called coral bleaching and eventually die, while corals in turn provide protection, making this what type of relationship?.
Options:
A. idealistic
B. semantic
C. parasitic
D. symbiotic | D |
Question: What is the type of reproduction where part of the parent plant is used to generate a new plant?
Options:
A. sexual reproduction
B. coaxed reproduction
C. byproduct reproduction
D. asexual reproduction | D |
Question: What is the name of the wind belt nearest the equator?
Options:
A. trade winds
B. doldrums
C. tropical gusts
D. cyclones | A |
Question: What two phases does the cell cycle consist of?
Options:
A. mitosis and mitotic
B. antecedent and mitotic
C. outerphase and mitotic
D. interphase and mitotic | D |
Question: Atoms with the same atomic number but different mass numbers are called what?
Options:
A. tropes
B. reactions
C. isotopes
D. organisms | C |
Question: Sphenodontia sphenodontia (“wedge tooth”) arose in the mesozoic era and includes only one of what?
Options:
A. outside genus
B. traveling genus
C. living genus
D. inner genus | C |
Question: In a heterozygote with one dominant and one recessive allele, which is expressed?
Options:
A. dominant elements
B. dominant allele
C. submissive allele
D. dominant atoms | B |
Question: Any sound with a frequency above the highest audible frequency is defined as what, a phenomenon useful in medical diagnosis and therapy?
Options:
A. laser
B. radiation
C. extrasound
D. ultrasound | D |
Question: Which organ secretes estrogen?
Options:
A. the kidney
B. the testes
C. the ovaries
D. the thyroid | C |
Question: Water-soluble carboxylic acids ionize slightly in water to form these?
Options:
A. very acidic solutions
B. nonacidic solutions
C. solvents
D. moderately acidic solutions | D |
Question: Which kind of irrigation uses much less water than other methods?
Options:
A. mist
B. constant
C. drip
D. solar | C |
Question: Fishes were the earliest example of what subphylum, and jawless fishes were the earliest of these?
Options:
A. grasses
B. mammals
C. vertebrates
D. ferns | C |
Question: What three things do animals require in order to survive?
Options:
A. air, water, food
B. Shelter, Food and love
C. Immunity, blood, water
D. Sex, Love, Food | A |
Question: What is broken during catabolic reactions, such as the breakdown of complex carbohydrates into simple sugars?
Options:
A. ions
B. metals
C. forms
D. bonds | D |
Question: The actual amount (mass) of gasoline left in the tank when the gauge hits “empty” is a lot less in the summer than in the winter. the gasoline has the same volume as it does in the winter when the “add fuel” light goes on, but because the gasoline has expanded, there is what?
Options:
A. more mass
B. less mas... | B |
Question: What do you call pure substances with unique properties?
Options:
A. structures
B. elements
C. arrangements
D. originals | B |
Question: What is the large muscle that extends across the bottom of the chest below the lungs called?
Options:
A. pectoral
B. uterus
C. diaphragm
D. abdomen | C |
Question: What is less dense then either solids or liquids?
Options:
A. gases
B. dark matter
C. plasma
D. ice | A |
Question: What is the term for a mountain-building event?
Options:
A. volcanism
B. erosion
C. glaciation
D. orogeny | D |
Question: A multiaxial ball-and-socket joint has much more mobility than a what hinge joint?
Options:
A. triaxial
B. uniaxial
C. biaxial
D. quadaxial | B |
Question: Meiosis and mitosis are both preceded by one round of what?
Options:
A. dna replication
B. internal fertilization
C. germination
D. cellular respiration | A |
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