prompt stringlengths 51 646 | completion stringclasses 8 values | source stringclasses 3 values |
|---|---|---|
Cell transport refers to the movement of substances across what structure?
A. chloroplasm
B. phloem
C. cell membrane
D. cell wall
Answer: | C | sciq |
What term describes the rate at which a device changes electric current to another form of energy?
A. kilowatts
B. kinetic energy
C. voltage
D. electric power
Answer: | D | sciq |
What happens when a sodium atom loses an electron?
A. combines with hydrogen
B. gains a proton
C. becomes calcium
D. becomes sodium ion
Answer: | D | sciq |
When a fluorine atom gains an electron, it becomes a negative what?
A. hydrogen ion
B. sulfide ion
C. potassium ion
D. fluoride ion
Answer: | D | sciq |
The endocrine system consists of cells, tissues, and organs that secrete what critical to homeostasis?
A. antibodies
B. saliva
C. acids
D. hormones
Answer: | D | sciq |
What is formed when two dna strands link together in an antiparallel direction and are twisted?
A. RNA
B. anti-helix
C. double helix
D. guanine
Answer: | C | sciq |
Particles of a gas are constantly moving and bumping into things. this gives gases what?
A. resistance
B. pressure
C. velocity
D. strength
Answer: | B | sciq |
Which part of a leaf contains openings known as stomata, through which the exchange of gases takes place?
A. cuticle
B. stoma
C. phloem
D. epidermis
Answer: | D | sciq |
Which system transports oxygens to cells?
A. nervous system
B. vascular system
C. oxy system
D. circulatory system
Answer: | D | sciq |
What is the part of a plant whose primary role is to collect sunlight and make food by photosynthesis?
A. stems
B. seeds
C. leaves
D. roots
Answer: | C | sciq |
Technically, any redox reaction can be set up to make a what?
A. skaht cell
B. voltaic cell
C. blocky cell
D. Black Cell
Answer: | B | sciq |
What percentage of all species that ever lived on earth have gone extinct?
A. 25%
B. 93 %
C. 99%
D. 50%
Answer: | C | sciq |
What is the diffusion of water known as?
A. hemostasis
B. evaporation
C. osmosis
D. electrolysis
Answer: | C | sciq |
What is it called when plants release water vapor through their leaves?
A. transpiration
B. eutrophication
C. evaporation
D. photosynthesis
Answer: | A | sciq |
Earth goes through regular changes in its position relative to?
A. mars
B. the sun
C. saturn
D. the moon
Answer: | B | sciq |
A symporter carries how many different molecules or ions in the same direction?
A. two
B. one
C. four
D. three
Answer: | A | sciq |
Large amounts of fuel are stored in skeletal muscles, adipose tissues and what organ?
A. liver
B. skin
C. spleen
D. kidney
Answer: | A | sciq |
Intrusive igneous rocks cool from magma slowly in the crust and have large what?
A. pores
B. atoms
C. coal deposits
D. crystals
Answer: | D | sciq |
What is the term used for the ability of salamanders to grow back lost limbs and other body parts?
A. extraction
B. regeneration
C. transformation
D. expansion
Answer: | B | sciq |
A winter storm is called what?
A. snow storm
B. tempest
C. blizzard
D. gale
Answer: | C | sciq |
The trochophre, a unique larval form, is found in the life cycle of which animal classification.
A. eels
B. sharks
C. mollusks
D. coral
Answer: | C | sciq |
Within organs, arteries branch into what small vessels that convey blood to the capillaries?
A. blood valves
B. aeortic vessels
C. Metarterioles
D. arterioles
Answer: | D | sciq |
Diamond is extremely hard because of the strong bonding between ______ in all directions?
A. consistent atoms
B. carbon atoms
C. hydrogen atoms
D. liquid atoms
Answer: | B | sciq |
Vertebrates. from the smallest of fish to us. one of the main features we all have in common is our what?
A. hair
B. laying eggs
C. warm blood
D. backbone
Answer: | D | sciq |
The fight or flight response and similar responses are controlled by what part of the nervous system?
A. spinal cord
B. central nervous system
C. cells
D. autonomous
Answer: | D | sciq |
Deposition refers to when a gas changes to what state?
A. half liquid half gas
B. solid
C. plasma
D. liquid
Answer: | B | sciq |
Nuclear changes occur with a simultaneous release of what, and a slight drop in mass?
A. oil
B. hydrogen
C. mineral
D. energy
Answer: | D | sciq |
The way of learning that involves reward and punishment is called?
A. mixed
B. foolish
C. conditioning
D. pressure
Answer: | C | sciq |
The sodium-potassium pump is an active transport pump that exchanges sodium ions for what?
A. potassium ions
B. chlorine ions
C. oxygen ions
D. nitrogen ions
Answer: | A | sciq |
Mass multiplied by velocity equals what force?
A. kinetic energy
B. bounce
C. inertia
D. momentum
Answer: | D | sciq |
How many years ago did early amniotes diverge into two groups?
A. .175 million years
B. .416 million years
C. 320 million years
D. 20 million years
Answer: | C | sciq |
The intensity or rate of radiation emission _________ with temperature?
A. decreases
B. increases
C. randomly fluctuates
D. does not vary
Answer: | B | sciq |
For the most part, cognitive functions reside where?
A. the heart
B. the cortex
C. the limbic system
D. the spine
Answer: | B | sciq |
What is the term for the force exerted by circulating blood on the walls of blood vessels?
A. blood energy
B. circulation pressure
C. heart pressure
D. blood pressure
Answer: | D | sciq |
What does the precise pattern of a crystal depend on?
A. mass
B. chance
C. compound
D. age
Answer: | C | sciq |
Learning to get used to something after being exposed to it for a while is associated with what kind of learning?
A. assimilation
B. association
C. dissociation
D. habituation
Answer: | D | sciq |
Is the digestive tract of many sharks longer or shorter than many other vertebrates?
A. shorter
B. heavier
C. longer
D. narrower
Answer: | A | sciq |
In the case of the thyroid hormone pathway, thyroid hormone itself carries out what kind of feedback?
A. continued
B. effective
C. positive
D. negative
Answer: | D | sciq |
What increases the size of a population's gene pool?
A. mutations
B. natural selection
C. microbes
D. mass extinction
Answer: | A | sciq |
The heart and the arteries and veins are associated with what system of the body?
A. metabolism
B. respiration
C. cardiovascular
D. digestion
Answer: | C | sciq |
What do scientists believe are the oldest eukaryotes?
A. protists
B. worms
C. prokaryotes
D. arthropods
Answer: | A | sciq |
What are used to balance chemical equations?
A. outputs
B. isotopes
C. coefficients
D. densities
Answer: | C | sciq |
Endothermic and exothermic reactions differ in whether the products or reactants store more of what?
A. Motion energy
B. Thermal energy
C. chemical energy
D. Kinetic Energy
Answer: | C | sciq |
What is the conversion of metals from their ores to more useful forms called?
A. nanotechnology
B. crystallography
C. thermodynamics
D. metallurgy
Answer: | D | sciq |
What is the predominant stage in the life cycle of most scyphozoans?
A. gamete
B. hydra
C. medusa
D. spore
Answer: | C | sciq |
The reaction of an alkyl halide with an inorganic hydroxide base at elevated temperature produces what?
A. an alcohol
B. yeast
C. methane
D. blood
Answer: | A | sciq |
What sequence is the primary structure of a protein?
A. nucleic acid sequence
B. processed acid sequence
C. amino acid sequence
D. proteins acid sequence
Answer: | C | sciq |
What are used to lift large masses of magnetic materials such as scrap iron, rolls of steel, and auto parts?
A. electromagnets
B. Tape
C. Glue
D. screws
Answer: | A | sciq |
Carbon behaves as a metal because it conducts which two things well?
A. electricity and oxygen
B. heat and electricity
C. heat and magnetism
D. heat and water
Answer: | B | sciq |
What is the first direct action of growth hormone?
A. stimulation of triglyceride production
B. stimulation of monoglyceride production
C. stimulation of triglyceride breakdown
D. stimulation of monoglyceride breakdown
Answer: | C | sciq |
What contains the spore-forming asci?
A. flagella
B. the ascocarps
C. sporozoa
D. mushroom cap
Answer: | B | sciq |
Fruit fly and brine shrimp hox genes have evolved independently for how long?
A. 60.000 million years
B. 100.32 million years
C. one billion
D. 400 million years
Answer: | D | sciq |
Yolk is a very fragile substance found in the eggs of reptiles and needs protection. what serves as protection for the yolk?
A. dish sac
B. yolk sac
C. eye sac
D. fish sac
Answer: | B | sciq |
What do tadpoles change into?
A. reptiles
B. mud puppies
C. toads
D. adult frogs
Answer: | D | sciq |
Earthworms and segmented worms belong to what phylum?
A. annelida
B. protazoa
C. bryozoa
D. nematoda
Answer: | A | sciq |
What are most stis caused by?
A. viruses
B. parasites
C. vaccines
D. bacteria
Answer: | D | sciq |
What is the term for matter that does not let any light pass through it, whether it absorbs light, reflects light, or does both?
A. devoid
B. artificial
C. opaque
D. obscene
Answer: | C | sciq |
Rain dissolves fertilizer in the soil, what carries it away?
A. runoff?
B. fossils
C. clouds
D. carbon ?
Answer: | A | sciq |
Each vertebral body has a large hole in the center through which the nerves of what pass?
A. steering cord
B. layers cord
C. Brain Cord
D. spinal cord
Answer: | D | sciq |
Rust consists of oxides of what element?
A. Aluminum
B. Copper
C. iron
D. Gold
Answer: | C | sciq |
Rising air currents carry water vapor into what?
A. ionosphere
B. troposphere
C. atmosphere
D. stratosphere
Answer: | C | sciq |
Echinoderms have what type of body symmetry?
A. Reflectional symmetry
B. Rotational symmetry
C. Translational symmetry
D. radial symmetry
Answer: | D | sciq |
What is used during filtration to push fluids and solutes, from higher pressure areas to lower pressure areas?
A. magnesium pressure gradient
B. hydrostatic pressure gradient
C. constructs pressure gradient
D. limited pressure gradient
Answer: | B | sciq |
How many pathways do plants have for carbon fixation?
A. one
B. three
C. four
D. two
Answer: | B | sciq |
What type of substance is any matter that has a fixed chemical composition and characteristic properties?
A. seawater chemical substance
B. pure chemical substance
C. physical substance
D. versatile chemical substance
Answer: | B | sciq |
Where are sperm produced in the process of spermatogenesis?
A. penis
B. ovaries
C. testes
D. intestines
Answer: | C | sciq |
What type of energy does chemosynthesis use to make food?
A. carbon energy
B. CHEMICAL energy
C. GRAVITATIONAL energy
D. chemical energy
Answer: | B | sciq |
The polymerase chain reaction is a way of making copies of what?
A. an enzyme
B. a form
C. a method
D. a gene
Answer: | D | sciq |
Energy transfer between what kinds of levels is generally rather inefficient?
A. apex
B. producer
C. secondary
D. trophic
Answer: | D | sciq |
What kind of conditions are often inherited as simple recessive traits?
A. genetic disorders
B. genetic ratios
C. genetic diversivers
D. genetic neurotransmitters
Answer: | A | sciq |
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?.
A. symbiotic
B. semantic
C. parasitic
D. idealistic
Answer: | A | sciq |
What is the type of reproduction where part of the parent plant is used to generate a new plant?
A. asexual reproduction
B. sexual reproduction
C. coaxed reproduction
D. byproduct reproduction
Answer: | A | sciq |
What is the name of the wind belt nearest the equator?
A. trade winds
B. cyclones
C. doldrums
D. tropical gusts
Answer: | A | sciq |
What two phases does the cell cycle consist of?
A. antecedent and mitotic
B. outerphase and mitotic
C. interphase and mitotic
D. mitosis and mitotic
Answer: | C | sciq |
Atoms with the same atomic number but different mass numbers are called what?
A. reactions
B. organisms
C. isotopes
D. tropes
Answer: | C | sciq |
Sphenodontia sphenodontia (“wedge tooth”) arose in the mesozoic era and includes only one of what?
A. outside genus
B. inner genus
C. traveling genus
D. living genus
Answer: | D | sciq |
In a heterozygote with one dominant and one recessive allele, which is expressed?
A. dominant atoms
B. dominant allele
C. submissive allele
D. dominant elements
Answer: | B | sciq |
Any sound with a frequency above the highest audible frequency is defined as what, a phenomenon useful in medical diagnosis and therapy?
A. radiation
B. ultrasound
C. extrasound
D. laser
Answer: | B | sciq |
Which organ secretes estrogen?
A. the kidney
B. the testes
C. the ovaries
D. the thyroid
Answer: | C | sciq |
Water-soluble carboxylic acids ionize slightly in water to form these?
A. moderately acidic solutions
B. nonacidic solutions
C. very acidic solutions
D. solvents
Answer: | A | sciq |
Which kind of irrigation uses much less water than other methods?
A. constant
B. solar
C. drip
D. mist
Answer: | C | sciq |
Fishes were the earliest example of what subphylum, and jawless fishes were the earliest of these?
A. mammals
B. vertebrates
C. grasses
D. ferns
Answer: | B | sciq |
What three things do animals require in order to survive?
A. air, water, food
B. Shelter, Food and love
C. Immunity, blood, water
D. Sex, Love, Food
Answer: | A | sciq |
What is broken during catabolic reactions, such as the breakdown of complex carbohydrates into simple sugars?
A. forms
B. ions
C. metals
D. bonds
Answer: | D | sciq |
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?
A. lower gravity
B. more mass
C. less mass
D. same mass
Answer: | C | sciq |
What do you call pure substances with unique properties?
A. arrangements
B. elements
C. structures
D. originals
Answer: | B | sciq |
What is the large muscle that extends across the bottom of the chest below the lungs called?
A. abdomen
B. pectoral
C. uterus
D. diaphragm
Answer: | D | sciq |
What is less dense then either solids or liquids?
A. ice
B. gases
C. dark matter
D. plasma
Answer: | B | sciq |
What is the term for a mountain-building event?
A. erosion
B. orogeny
C. volcanism
D. glaciation
Answer: | B | sciq |
A multiaxial ball-and-socket joint has much more mobility than a what hinge joint?
A. uniaxial
B. quadaxial
C. triaxial
D. biaxial
Answer: | A | sciq |
Meiosis and mitosis are both preceded by one round of what?
A. cellular respiration
B. dna replication
C. internal fertilization
D. germination
Answer: | B | sciq |
What is the hollow sac like organ that stores urine until it is excreted?
A. ureter
B. tumor
C. kidney
D. bladder
Answer: | D | sciq |
What is the name of the magnetic material found in lava?
A. magnemite
B. hemoglobin
C. magnetite
D. meteorite
Answer: | C | sciq |
What is a branded polymer that serves as energy storage in animal?
A. glycogen
B. hydrocarbon
C. pathogen
D. triglyceride
Answer: | A | sciq |
Milk is usually subjected to what process, where high temperatures denature the proteins in bacteria so they cannot carry out functions needed to grow and multiply?
A. vaporization
B. pasteurization
C. crystallization
D. Cleaning
Answer: | B | sciq |
What do you call something that controls the uptake of water or another substance in the environment, in order to maintain constant internal conditions?
A. protozoans
B. osmoconformers
C. sporozoans
D. osmoregulators
Answer: | D | sciq |
Plastics are common examples of synthetic polymers of what abundant element?
A. carbon
B. silicon
C. hydrogen
D. silver
Answer: | A | sciq |
Magnetite crystals of different ages and on different continents pointed to different spots. the simplest explanation is that the continents have done what?
A. evolved
B. reacted
C. changed
D. moved
Answer: | D | sciq |
Protozoa can be classified on the basis of how they?
A. feel
B. look
C. move
D. smell
Answer: | C | sciq |
Biomass, solar, wind, water, and geothermal power are examples of what kinds of energy resources?
A. fossil fuel
B. electrical
C. renewable
D. mechanical
Answer: | C | sciq |
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