prompt stringlengths 51 646 | completion stringclasses 8 values |
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All dinosaurs (except those which led to birds) went extinct at the end of which period?
A. Jurassic
B. Paleogene
C. Tertiary
D. cretaceous
Answer: | D |
What is destroying the layer of good ozone?
A. air pollution
B. water pollution
C. greenhouse gas
D. climate change
Answer: | A |
In which state does matter need to be for nuclear fusion?
A. cells state
B. solid state
C. gaseous state
D. plasma state
Answer: | D |
Just as salty taste involves perception of sodium ions in saliva, what taste correlates with presence of glucose?
A. bitter
B. sour
C. sweet
D. salty
Answer: | C |
How is eye color in humans determined?
A. by the father
B. multiple genes
C. random chance
D. temperature of the womb
Answer: | B |
What term is given to flatworms because they lack a body cavity?
A. acoelomates
B. sporozoans
C. sporazoa
D. pores
Answer: | A |
Some soil water can flow through easily. what kind of soil is this?
A. Stationary
B. porous
C. dense
D. permeable
Answer: | D |
What is contained in the cavity of a long bone's central shaft?
A. calcium
B. blood
C. cells
D. marrow
Answer: | D |
Bacterial contamination of foods can lead to digestive problems called what?
A. butterflies in your stomach
B. food poisoning
C. cancer
D. the flu
Answer: | B |
What can be looked at to see a record of how horses evolved?
A. pattern records
B. carbon dating
C. erosion records
D. fossil records
Answer: | D |
What natural destructive element cuts away at rock forming river valleys?
A. air
B. sediment
C. lava
D. water
Answer: | D |
What do we call an interruption in the normal conduction pathway of the heart?
A. heart attack
B. infarction
C. heartburn
D. heart block
Answer: | D |
Mixtures that have the same composition throughout are known as what kinds of mixtures?
A. homogeneous
B. contiguous
C. heterogeneous
D. zygomatic
Answer: | A |
The wavelength of a what type of wave can be measured as the distance between two adjacent compressions?
A. longitudinal
B. lateral
C. horizontal
D. vertical
Answer: | A |
What kind of muscle is found in the heart?
A. cardiac
B. pulminary
C. cord
D. respiratory
Answer: | A |
Streamlines are smooth and continuous when flow is laminar, but break up and mix when flow is what?
A. slow
B. turbulent
C. atmospheric
D. volcanic
Answer: | B |
What does water treatment do to water?
A. restores bacteria
B. increases volume
C. adds flavor
D. removes unwanted substances
Answer: | D |
What is named after the type of enzyme they interact with in the cell?
A. receptor proteins
B. function proteins
C. nitrogen proteins
D. oxygen proteins
Answer: | A |
What types of genes encode transcription factors?
A. rohail genes
B. isozyme genes
C. homeobox genes
D. glycosyl transferases
Answer: | C |
What factor largely determines the distinguishing features of terrestrial biomes?
A. density
B. migration
C. sea level
D. climate
Answer: | D |
What is the term for vascular plants that reproduce with seeds?
A. Reproductive Plants
B. seed plants
C. strain plants
D. mother plants
Answer: | B |
What is thought to be the oldest eukaryotes?
A. protists
B. arthropods
C. amoebas
D. prokaryotes
Answer: | A |
Which landmark book on evolution via natural selection did charles darwin publish in 1859?
A. on the origin of species
B. on various kinds of animals
C. on the ethnic of species
D. on the origin of mammals
Answer: | A |
Archaeans help break down sewage in waste treatment plants, so they fulfill what important role?
A. pollenation
B. producers
C. consumers
D. decomposer
Answer: | D |
If an atom gains electrons, it becomes what?
A. anion
B. neutral
C. a cation
D. an ion
Answer: | D |
The formula mass of a covalent compound is also called the what?
A. atomic mass
B. nucleus mass
C. molecular mass
D. ionic mass
Answer: | C |
Both pathways that isolate a population reproductively in some form, allopatric and sympatric describe what, which means the creation of new species?
A. extinction
B. accumulation
C. bacterial
D. speciation
Answer: | D |
Common disease of what system include asthma, pneumonia, and emphysema?
A. the digestive system
B. the respiratory system
C. the fecal system
D. the glandular system
Answer: | B |
Translucent matter is matter that transmits and does what else to light?
A. condenses
B. scatters
C. reflects
D. absorbs
Answer: | B |
Diet correlates with the length of what organ system in vertebrates?
A. digestive
B. reproductive
C. respiratory
D. circulatory
Answer: | A |
What is the process of processing used material into new ones called?
A. remake
B. renew
C. reuse
D. recycling
Answer: | D |
What equals the mass of the object (in kilograms) times the acceleration due to gravity (9.8 m/s 2 )?
A. weight
B. speed of light
C. velocity
D. density
Answer: | A |
Where does visible light fall in between on the electromagnetic spectrum?
A. radio and infrared
B. infrared light and ultraviolet light
C. infrared light and specific light
D. infrared light and gamma ray
Answer: | B |
Having polar bonds may make a covalent compound what?
A. negatively charged
B. neutral
C. polar
D. ionic
Answer: | C |
Shortening of muscle fibers is called what?`
A. diffusion
B. contraction
C. shrinking
D. diffusion
Answer: | B |
About how many thunderstorms are there each year worldwide?
A. 23 million
B. 14 million
C. 21 million
D. 17 million
Answer: | B |
What are a group of protists whose monophyly is well supported by molecular systematics?
A. euglenozoa
B. mycetozoa
C. sporozoans
D. alveolates
Answer: | D |
What is measured by the intensity of the sound waves?
A. tone
B. loudness
C. inputs
D. pitch
Answer: | B |
Parasitic fungi often cause illness and may eventually do what to their hosts?
A. become them
B. reproduce with them
C. kill them
D. mutate them
Answer: | C |
Coronary heart disease is caused when what blocks coronary arteries?
A. fats
B. plaque
C. carbohydrates
D. proteins
Answer: | B |
Air is an example of what state of matter?
A. plasma
B. gas
C. solid
D. liquid
Answer: | B |
What descend from clouds in funnel-like shapes that spin violently, producing powerful winds?
A. tornadoes
B. hurricanes
C. currents
D. rains
Answer: | A |
What term describes the long-term, predictable atmospheric conditions of a specific area?
A. hemosphere
B. solar activity
C. climate
D. wind patterns
Answer: | C |
Between meals, when the level of blood glucose drops below a certain point, a signal is sent to what organ saying “make more glucose"?
A. pancreas
B. liver
C. kidney
D. brain
Answer: | B |
Where does the krebs cycle take place?
A. in the matrix
B. in the ozone
C. in the nitrogen
D. in the beam
Answer: | A |
What state of matter is like a liquid in that particles are in contact with each other, but unlike liquids in that the intermolecular forces are strong enough to hold the particles in place?
A. fluids
B. gases
C. solids
D. plasmas
Answer: | C |
What is the term for a natural situation which arises to physically divide organisms?
A. vicariance
B. reproduction
C. extinction
D. assimilation
Answer: | A |
Digestion of carbohydrates is performed by several enzymes. starch and glycogen are broken down into glucose by amylase and maltase. sucrose (table sugar) and lactose (milk sugar) are broken down by sucrase and this?
A. lipase
B. hydrolase
C. lactase
D. pepsin
Answer: | C |
What is defined as a phasic change in muscle tone?
A. elasticity
B. susceptibility
C. gastrointestinal
D. spasticity
Answer: | D |
What is a force that opposes motion between any surfaces that are touching?
A. tension
B. gravity
C. friction
D. vibration
Answer: | C |
What are structures that have a common function and suggest common ancestry?
A. analogous structures
B. homologous structures
C. monogamous structures
D. reversible structures
Answer: | B |
Which type of cell division halves the number of chromosomes?
A. fragmentation
B. mitosis
C. meiosis
D. budding
Answer: | C |
Objects in motion that return to the same position after a fixed period of time are said to be in what?
A. homeostasis
B. harmonic motion
C. kinetic motion
D. resonant motion
Answer: | B |
What is the relationship of multiple action potentials from a single cell resulting in a significant change in the membrane potential?
A. nature summation
B. bipolar summation
C. temporal summation
D. distinct summation
Answer: | C |
Plant cells have cell walls that are made of what?
A. tissue
B. nucleus
C. carbonate
D. cellulose
Answer: | D |
What disease associated with smoking involves breakdown of walls of the alveoli, resulting in less gas exchange by the lungs?
A. emphysema
B. leukemia
C. cancer
D. pneumonia
Answer: | A |
Molds and yeasts are organisms in what kingdom?
A. aquatic
B. tissues
C. fungus
D. insects
Answer: | C |
Bacteria can be used to make cheese from milk. the bacteria turn the milk sugars into what?
A. lactic acid
B. acetic acid
C. hydrochloric acid
D. ionic acid
Answer: | A |
Independent assortment occurs when what go to opposite poles of the cell in anaphase i?
A. ballasts
B. prokaryotes
C. chromosomes
D. receptors
Answer: | C |
What term is used to describe an immunity that occurs after exposure to an antigen either from a pathogen or a vaccination?
A. herd immunity
B. autoimmunity
C. variation immunity
D. adaptive immunity
Answer: | D |
Changes in temperature, ph, and exposure to chemicals may lead to permanent changes in the shape of a protein, leading to loss of function known as what?
A. bioturbation
B. denaturation
C. digestion
D. fermentation
Answer: | B |
What term is used to describe phages capable of using both modes of replicating within a bacterium?
A. lambda phage
B. temperate phages
C. bacteriophage
D. moderate phages
Answer: | B |
Many observatories are built on high mountains to avoid interference from what?
A. artificial light
B. animal life
C. the atmosphere
D. airplanes
Answer: | C |
Like earth, the moon has a distinct crust, mantle, and what else?
A. polarity
B. core
C. temperature
D. atmosphere
Answer: | B |
Reflection, refraction, and diffraction are examples of what type of interaction?
A. waves
B. winds
C. Currents
D. Oscillations
Answer: | A |
What type of molecules are found in the hydration shell of a dissolved ion?
A. water
B. carbon
C. oxygen
D. iron
Answer: | A |
Tuataras, lizards, and snakes are members of what subclass of reptiles?
A. dinosaurs
B. lepidosaurs
C. arthropods
D. staurikosaurus
Answer: | B |
What do waves deposit in relatively quiet areas along a shore?
A. sand
B. snow
C. fish
D. mud
Answer: | A |
What is the smallest unit of structure and function of all living organisms?
A. cell
B. atom
C. proton
D. particle
Answer: | A |
What kind of fertilization do birds have?
A. asexual
B. deep fertilization
C. sensitive fertilization
D. internal fertilization
Answer: | D |
What is the term for an organism, or single living thing?
A. single-celled organism
B. unique
C. loner
D. individual
Answer: | D |
Which of newton's laws states that the quantity of angular momentum in a closed system is fixed?
A. second conservation law
B. third conservation law
C. sixth conservation law
D. fourth conservation law
Answer: | B |
What is the force that slows down or stops motion?
A. thrust
B. friction
C. tension
D. resistance
Answer: | B |
What is it called when poles are in opposite positions?
A. polar effect
B. demagnetization
C. reversed bonding
D. reversed polarity
Answer: | D |
What is a feature that prokaryotes lack?
A. cell wall
B. plasma
C. epidermis
D. nucleus
Answer: | D |
They had demonstrated that particles smaller than bacteria cause what?
A. damage
B. flight
C. disease
D. blood
Answer: | C |
The wrist and base of the hand are formed by what series of small bones arranged in distal and proximal rows?
A. carpal
B. cranial
C. ribs
D. patella
Answer: | A |
What does an underwater spider use to breathe and keep alive?
A. forehead air bubble
B. gills
C. shiny air bubble
D. metallic air bubble
Answer: | C |
Amphibians are ectothermic vertebrates that divide their time between freshwater and what else?
A. saltwater
B. terrestrial habitats
C. deserts
D. arboreal habitats
Answer: | B |
Water plus other substances makes what?
A. element
B. solution
C. mixture
D. oil
Answer: | B |
What type of polarization does a negative object create>
A. negative polarization
B. simple polarization
C. common polarization
D. opposite polarization
Answer: | D |
What type of particles can a beta particle be?
A. diode or positron
B. electron or positron
C. anode or positron
D. cytoplasm or positron
Answer: | B |
The heme parts of a hemoglobin molecule bind with what element?
A. hydrogen
B. oxygen
C. nitrogen
D. carbon
Answer: | B |
What is the term for flowering seed plants?
A. gymnosperms
B. angiosperms
C. perennials
D. spores
Answer: | B |
Do nonvascular or vascular plants have a dominant sporophyte generation?
A. vascular
B. perennial
C. nonvascular
D. deciduous
Answer: | A |
In mismatch repair, other enzymes remove and replace incorrectly paired nucleotides that have resulted from what?
A. evolution errors
B. replication errors
C. interaction errors
D. typing errors
Answer: | B |
What two structures are found on mars?
A. Mountains and Creeks
B. geysers and canyons
C. volcanoes and canyons
D. Trees and Canyons
Answer: | C |
What substances dissociate into ions when dissolved in water?
A. magnetic
B. isotopes
C. solvent
D. ionic
Answer: | D |
Organisms that depend on other organisms for food play what role in the food chain?
A. fungus
B. producer
C. consumer
D. plant
Answer: | C |
What is the growing root tip protected by?
A. root flap
B. root hinge
C. tip cap
D. root cap
Answer: | D |
Ocean water appears cyan because microbes in the water preferentially absorb what color of light?
A. green
B. red
C. blue
D. yellow
Answer: | B |
Both energy and heat can be expressed in units of what?
A. ohms
B. joules
C. amperes
D. velocities
Answer: | B |
In fact, when sitting in the sun, many ectothermic lizards have higher body temperatures than what?
A. insects
B. primates
C. mammals
D. carnivores
Answer: | C |
In binary fission how many times does a cell split?
A. one
B. six
C. two
D. four
Answer: | C |
What do nonvascular plants reproduce with?
A. vascular plants
B. spores
C. toxins
D. photosynthesis
Answer: | B |
The most powerful or influential individual in a group is sometimes called what?
A. superior
B. dominant
C. beta
D. gamma
Answer: | B |
What is the first stage of cellular respiration?
A. amniocentesis
B. glycolysis
C. hydrolysis
D. photosynthesis
Answer: | B |
In which direction does heat always flow through objects?
A. from cooler to hotter
B. from left to right
C. from hotter to cooler
D. from low to high
Answer: | C |
Like sharks, nearly the entire human skeleton during a specific pre-birth developmental stage is made of what connective tissue?
A. chloroplasm
B. collagen
C. cartilage
D. phloem
Answer: | C |
When this forms underground, volcanoes rise?
A. CO2
B. pumice
C. magma
D. soil
Answer: | C |
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