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null | Question: Hemoglobin, with four polypeptide chains or subunits, is the most frequently cited example of a protein having what kind of structure?
Options:
A. binary
B. unary
C. ternary
D. quaternary
Answer: | D |
null | Question: When waves of two different frequencies interfere, what phenomenon occurs?
Options:
A. making
B. soaking
C. beating
D. opening
Answer: | C |
null | Question: Sugars are simple types of what biochemical compounds and possess relatively small molecules?
Options:
A. lipids
B. carbohydrates
C. proteins
D. vegetables
Answer: | B |
null | Question: Vesicles can be classified by their contents and what else?
Options:
A. color
B. function
C. example
D. smell
Answer: | B |
null | Question: Some membrane proteins that actively transport ions contribute to what?
Options:
A. membrane potential
B. cellular potential
C. organism potential
D. protein potential
Answer: | A |
null | Question: What is the name for a change in a single nucleotide in dna?
Options:
A. spontaneous mutation
B. cell regeneration
C. adaptation
D. point mutation
Answer: | D |
null | Question: What does the stomach produce to help digest food?
Options:
A. hydrochloric acid
B. acetic acid
C. amino acid
D. lactic acid
Answer: | A |
null | Question: What organ is divided into the duodenum, the jejunum, and the ileum?
Options:
A. large intestine
B. kidney
C. small intestine
D. lung
Answer: | C |
null | Question: Because charges must have an unbroken path to follow, electric current cannot flow through a material unless it forms what?
Options:
A. total loop
B. closed area
C. closed loop
D. complete loop
Answer: | C |
null | Question: All cells need what for energy?
Options:
A. oxygen
B. light
C. insulin
D. glucose
Answer: | D |
null | Question: What should you use to protect your eyes from chemicals?
Options:
A. eye goggles
B. contacts
C. your hands
D. certain goggles
Answer: | A |
null | Question: Mutualism is a symbiotic relationship in which both species do what?
Options:
A. die
B. reproduce
C. benefit
D. suffer
Answer: | C |
null | Question: In most fish, where does the embryo develop in relation to the mother's body?
Options:
A. Eggs
B. outside
C. inside
D. water
Answer: | B |
null | Question: Scientists will often observe and then what the reason why a phenomenon occurred?
Options:
A. realize
B. theorize
C. hypothesize
D. normalize
Answer: | C |
null | Question: What do most species of monkeys have that no apes or humans do?
Options:
A. fur
B. tail
C. five fingers
D. large brain
Answer: | B |
null | Question: What is the separation of compounds on the basis of their solubilities in a given solvent?
Options:
A. fractional crystallization
B. fractional mass
C. volatile crystallization
D. solvent law
Answer: | A |
null | Question: Almost all fungi reproduce asexually by producing what?
Options:
A. ions
B. spores
C. roots
D. atoms
Answer: | B |
null | Question: What is the physical environment in which a species lives and to which it has adapted?
Options:
A. ecosystem
B. habitat
C. farmland
D. land mass
Answer: | B |
null | Question: What domain-level category of cells can contain more than 1000 times the dna found in a typical bacterial cell?
Options:
A. genetic
B. chromosomes
C. mutations
D. eukaryotic
Answer: | D |
null | Question: Makemake and pluto are classified as what type of celestial object?
Options:
A. black holes
B. gas giants
C. dwarf planets
D. nebula
Answer: | C |
null | Question: What are the newest, outer layers of secondary xylem called?
Options:
A. bark
B. vascular
C. fibrous
D. sapwood
Answer: | D |
null | Question: Via what process do substance move from one cell to another?
Options:
A. reverse transferase
B. autolysis
C. plasmodesmata
D. downregulation
Answer: | C |
null | Question: An obstacle or opening that is shorter than the wavelength causes greater diffraction of what?
Options:
A. tides
B. waves
C. particles
D. ranges
Answer: | B |
null | Question: Terrestrial ecosystems, also known for their diversity, are grouped into large categories called what?
Options:
A. biomes
B. bisomes
C. monomes
D. substrates
Answer: | A |
null | Question: Water gains and loses what more slowly than does land, affecting seasonal conditions inland and on the coast?
Options:
A. humidity
B. volume
C. minerals
D. heat
Answer: | D |
null | Question: An irreversible increase in size is known as?
Options:
A. volume
B. mass
C. growth
D. strength
Answer: | C |
null | Question: During diastole, what happens to the elastic walls of the arteries?
Options:
A. they expand
B. they become hardened
C. they evolve
D. they snap back
Answer: | D |
null | Question: What type of compound is hydrogen chloride?
Options:
A. polar
B. ionic
C. metal
D. covalent
Answer: | D |
null | Question: What type of shape does a pelvic inlet have?
Options:
A. conical
B. cylindrical
C. oval shape
D. cubic
Answer: | C |
null | Question: When bread bakes, yeast releases which gas?
Options:
A. hydrogen
B. carbon monoxide
C. carbon dioxide
D. oxygen
Answer: | C |
null | Question: Liverworts are small plants that grow close to what?
Options:
A. ground
B. tree tops
C. beaches
D. houses
Answer: | A |
null | Question: What are winds that blow over a limited area called?
Options:
A. trade winds
B. local winds
C. Planetary Winds
D. Periodic Winds
Answer: | B |
null | Question: When explosion of gases creates pressure resulting in motion of a rocket, the force pushing the rocket is called what?
Options:
A. friction
B. thrust
C. temperature
D. stasis
Answer: | B |
null | Question: Which radiations helps sterilize medical supplies?
Options:
A. ions radiation
B. gamma radiation
C. ionizing radiation
D. beta radiation
Answer: | C |
null | Question: What in science are very important so that we can compare experimental data from one lab to another and make sure we all are talking about the same thing?
Options:
A. available measurements
B. Conventional measurements
C. uses measurements
D. standard measurements
Answer: | D |
null | Question: What is the limiting factor for bacteria in a dish?
Options:
A. speed
B. material
C. space
D. density
Answer: | C |
null | Question: Early in the development of a human fetus, the skeleton is made entirely of what?
Options:
A. anterior
B. bones
C. cartilage
D. membrane
Answer: | C |
null | Question: What planet has the most volcanoes?
Options:
A. Earth
B. Mars
C. uranus
D. venus
Answer: | D |
null | Question: A perfectly inelastic collision reduces internal kinetic energy to the minimum it can have while still conserving what?
Options:
A. energy
B. heat
C. elements
D. momentum
Answer: | D |
null | Question: Reptiles can be found on every continent except which one?
Options:
A. australia
B. south america
C. africa
D. antarctica
Answer: | D |
null | Question: What is the brightest star in the orion constellation?
Options:
A. omicron
B. sol
C. natel
D. rigel
Answer: | D |
null | Question: Rather than being dead, dry, and brittle, what support structures of the human body consist of living tissues and are supplied with blood and nerves?
Options:
A. feet
B. bones
C. hearts
D. lungs
Answer: | B |
null | Question: The zygote undergoes many cell divisions before it implants in the lining of what?
Options:
A. vagina
B. uterus
C. ovaries
D. pelvis
Answer: | B |
null | Question: Potential energy is not only associated with the location of matter, but also with the structure of matter. even a spring on the ground has potential energy if it is what?
Options:
A. ignored
B. compressed
C. watched
D. coupled
Answer: | B |
null | Question: What is the basic unit of the structure and function of living things?
Options:
A. atom
B. cell
C. molecule
D. nucleus
Answer: | B |
null | Question: Because they control many cell activities - as well as being controlled by feedback mechanisms - what substances are very important for homeostasis?
Options:
A. acids
B. hormones
C. enzymes
D. proteins
Answer: | B |
null | Question: Scientists use a quantity called __________ as a measure of disorder, or randomness.
Options:
A. vector count
B. chance level
C. entropy
D. motion
Answer: | C |
null | Question: Where does visible light fall in between on the electromagnetic spectrum?
Options:
A. infrared light and gamma ray
B. radio and infrared
C. infrared light and ultraviolet light
D. infrared light and specific light
Answer: | C |
null | Question: In the forward reaction, hydrogen and iodine combine to form what?
Options:
A. hydrogen iodide
B. hydrogen ionicide
C. iodinic hydrogen
D. ionic hydrogen
Answer: | A |
null | Question: What do we call the amount of time a substance is stored in a reservoir?
Options:
A. storage time
B. presence time
C. latency
D. residence time
Answer: | D |
null | Question: Most bird species display this behavior, meaning the male and female remain together for breeding for a few years or until one mate dies?
Options:
A. dichotomy
B. monogamy
C. polygamy
D. isolation
Answer: | B |
null | Question: What is the representative particle in pure metals?
Options:
A. the atom
B. quark
C. neutron
D. electron
Answer: | A |
null | Question: What does hemoglobin in blood carry to the cells?
Options:
A. methane
B. nitrogen
C. oxygen
D. carbon dioxide
Answer: | C |
null | Question: Which type of isomers generally have lower boiling and melting points than straight-chain isomers?
Options:
A. branched-chain isomers
B. straight-chain isomers
C. branched-looping isomers
D. branched - solar isomers
Answer: | A |
null | Question: In glycolysis, glucose is split into two molecules of pyruvate. this results in a net gain of?
Options:
A. four atp molecules
B. two atp molecules
C. six atp molecules
D. three atp molecules
Answer: | B |
null | Question: Trimethylamine is one of the substances responsible for the what of spoiled fish?
Options:
A. appearance
B. decay
C. feel
D. smell
Answer: | D |
null | Question: What type of joint are ball-and-socket, hinge, and pivot examples of?
Options:
A. movable
B. retractable
C. fixed
D. artificial
Answer: | A |
null | Question: Area, volume, and speed are all examples of what type of units?
Options:
A. fundamental units
B. calculated measure
C. derived units
D. known units
Answer: | C |
null | Question: Hot material from near the sun’s center rises in which zone?
Options:
A. radiative zone
B. thermosphere
C. convection zone
D. drifting zone
Answer: | C |
null | Question: What is the term for the exchange of genetic material between non-sister chromatids of homologous chromosomes?
Options:
A. crossing-over
B. asexual reproduction
C. meiosis
D. inheritance
Answer: | A |
null | Question: Air pollution can cause disease of what system by affecting the health of your lungs?
Options:
A. cardiac
B. excretory
C. respiratory
D. digestive
Answer: | C |
null | Question: The transmitted light strikes a photoelectric tube, which converts the light energy to?
Options:
A. heat
B. electricity
C. color
D. gas
Answer: | B |
null | Question: The atom often (but not always) turns into a different what during the decay process?
Options:
A. element
B. aspect
C. reaction
D. concept
Answer: | A |
null | Question: What membrane is populated by two types of photosystems that cooperate in the light reactions of photosynthesis?
Options:
A. choroid
B. subcutaneous
C. chloroplasts
D. thylakoid
Answer: | D |
null | Question: What phase follows ovulation?
Options:
A. interstitial phase
B. luteal phase
C. telophase
D. varicose phase
Answer: | B |
null | Question: What do you call the process that results in an animal producing offspring?
Options:
A. adoption
B. reproduction
C. differentiation
D. creationism
Answer: | B |
null | Question: In preparation for phagocytosis, a portion of the inward-facing surface of the plasma membrane becomes coated with a protein called clathrin, which stabilizes this section of what?
Options:
A. membrane
B. nuclei
C. particles
D. mitochondria
Answer: | A |
null | Question: Crests and troughs are the high and low points of a what?
Options:
A. darker wave
B. transverse wave
C. rupture wave
D. heat wave
Answer: | B |
null | Question: Approximately 20% of the atmosphere is made of which element?
Options:
A. hydrogen
B. oxygen
C. nitrogen
D. carbon
Answer: | B |
null | Question: The only invertebrates than can fly belong to what broad group, which is highly successful?
Options:
A. insects
B. birds
C. bats
D. spiders
Answer: | A |
null | Question: What is formed when sperm mixes with secretions from the various other glands of the reproductive system?
Options:
A. urine
B. testosterone
C. hormone
D. semen
Answer: | D |
null | Question: What is the largest artery in the body called?
Options:
A. subclavian
B. aorta
C. femoral
D. carotid
Answer: | B |
null | Question: Reversible reactions are indicated by what kinds of arrows?
Options:
A. double-headed
B. opposite-headed
C. equilibrium arrows
D. resonance arrows
Answer: | B |
null | Question: Cnidarians have a simple digestive system with a single opening surrounded by what type of structures, which are used to capture prey?
Options:
A. tentacles
B. claws
C. antennae
D. spines
Answer: | A |
null | Question: What forms when the metal sodium gives up an electron to the nonmetal chlorine?
Options:
A. hydrogen bond
B. van der waals force
C. an ionic bond
D. covalent bond
Answer: | C |
null | Question: Vertebrates with four limbs are also called what?
Options:
A. Mammals
B. tetrapods
C. Amphibians
D. Birds
Answer: | B |
null | Question: The lungs of mammals are unique in having what?
Options:
A. alveoli
B. alveolar
C. glands
D. acini
Answer: | A |
null | Question: Alpha, beta, and gamma emissions are associated with what kind of energy?
Options:
A. electrical
B. radiation
C. kinetic
D. potential
Answer: | B |
null | Question: Does climate change have a positive or negative effect on reproductive success?
Options:
A. negative
B. neither
C. both
D. positive
Answer: | A |
null | Question: What causes blue litmus to turn red?
Options:
A. carbon
B. base
C. acid
D. oxygen
Answer: | C |
null | Question: A geiger counter is used for detecting what?
Options:
A. mutation
B. pressure
C. convection
D. radiation
Answer: | D |
null | Question: What is the name of the magnetic material found in lava?
Options:
A. meteorite
B. magnemite
C. hemoglobin
D. magnetite
Answer: | D |
null | Question: What three parts is the earth divided into?
Options:
A. crust, mantle, core
B. crust, core, magma
C. troposphere, atomosphere, xerosphere
D. oceans, land, air
Answer: | A |
null | Question: Most modern seed plants are angiosperms that produce seeds in the what of flowers?
Options:
A. kidneys
B. lungs
C. stems
D. ovaries
Answer: | D |
null | Question: What do we call the energy-rich product of photosynthesis?
Options:
A. glucose
B. chloride
C. sugar
D. insulin
Answer: | A |
null | Question: Arteries, veins, and capillaries are the three main types of what?
Options:
A. blood vessels
B. blood shapes
C. blood pathways
D. cell structures
Answer: | A |
null | Question: What leads to the buildup of electric charges on objects?
Options:
A. movement
B. polarization
C. rotation
D. gravity
Answer: | B |
null | Question: The vestibulocochlear nerve is responsible for the senses of hearing and what else?
Options:
A. sight
B. balance
C. smell
D. awareness
Answer: | B |
null | Question: What do people use from aquifers from springs or wells?
Options:
A. fresh water
B. salt
C. oxygen
D. soil
Answer: | A |
null | Question: Like sharks, nearly the entire human skeleton during a specific pre-birth developmental stage is made of what connective tissue?
Options:
A. cartilage
B. phloem
C. collagen
D. chloroplasm
Answer: | A |
null | Question: What forces keep the moon orbiting the earth?
Options:
A. cosmic
B. gravitational
C. polar
D. magnetic
Answer: | B |
null | Question: Scientists utilize what natural process to teach cranes born in captivity to migrate along safe routes?
Options:
A. expediting
B. imprinting
C. natural selection
D. neuroimaging
Answer: | B |
null | Question: The amount of power passed through transmission lines can be calculated by multiplying voltage by what?
Options:
A. induction
B. resistance
C. amplification
D. current
Answer: | D |
null | Question: A sequence of amino acids in single polypeptide is the primary structure for what?
Options:
A. dna
B. cells
C. proteins
D. lipids
Answer: | C |
null | Question: Which cells at the base of the hair root form the outer root sheath?
Options:
A. tunnel fibers
B. basal
C. scala vestibuli
D. scala media
Answer: | B |
null | Question: After a massive eruption what will a mountain collapsing above an empty chamber create?
Options:
A. valley
B. crater
C. caldera
D. cavern
Answer: | C |
null | Question: What sport involves people quickly finding destinations using polar coordinates?
Options:
A. mapping
B. sticking
C. orienteering
D. patterning
Answer: | C |
null | Question: Chordates are defined by a set of four characteristics that are shared by these animals at some point during their?
Options:
A. death
B. development
C. birth
D. response
Answer: | B |
null | Question: What type of molecules sit within a membrane and contain an aqueous channel that spans the membrane’s hydrophobic region?
Options:
A. osmotic fluid
B. channel
C. mole
D. microorganisms
Answer: | B |
null | Question: What do we call the orderly sequence of events in the life of a cell from the division of a single parent cell to produce two new daughter cells, to the subsequent division of those daughter cells?
Options:
A. cell death
B. cell cycle
C. cell replication
D. circadian cycle
Answer: | B |
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