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null | Question: A reaction producing heat is what type of reaction?
Options:
A. carbon
B. physical
C. chemistry
D. chemical
Answer: | D |
null | Question: What creates a new seafloor at the mid-ocean ridge?
Options:
A. glaciers
B. magma
C. earthquake
D. hurricane
Answer: | B |
null | Question: What noble gas follows hydrogen on the periodic table?
Options:
A. helium
B. oxygen
C. halogen
D. nitrogen
Answer: | A |
null | Question: The strength of what depends on the concentration of hydrogen ions it produces when dissolved in water?
Options:
A. acid
B. the base
C. electricity
D. the solution
Answer: | A |
null | Question: The atoms of a compound are held together by what type of bonds?
Options:
A. chemical
B. radiation
C. covalent
D. mineral
Answer: | A |
null | Question: About one-fourth of the blood pumped with each heartbeat enters arteries serving what organs of digestion?
Options:
A. lungs
B. intestines
C. stomach
D. bowels
Answer: | B |
null | Question: What is the very slow movement of rock and soil down a hillside?
Options:
A. drop
B. landslide
C. creep
D. evaporate
Answer: | C |
null | Question: What is the mechanism that accounts for the drifting of continents?
Options:
A. earth spreading
B. volcanic spreading
C. seafloor spreading
D. ridges spreading
Answer: | C |
null | Question: What is produced when a colorless solution of lead nitrate is added to a colorless solution of potassium iodide?
Options:
A. yellow solid precipitate
B. brown solid precipitate
C. purple solid precipitate
D. blue solid precipitate
Answer: | A |
null | Question: Energy contents of foods are often expressed in what?
Options:
A. calories
B. grams
C. pulses
D. nutrients
Answer: | A |
null | Question: What cells carry oxygen?
Options:
A. red blood cells
B. lymph cells
C. marrow cells
D. white blood cells
Answer: | A |
null | Question: What organelles are known as the energy "powerhouses" of the cells?
Options:
A. proteins
B. atoms
C. carbohydrates
D. mitochondria
Answer: | D |
null | Question: What occurs when the immune system attacks harmless substances that enter the body from the outside?
Options:
A. allergies
B. cell rejection
C. anomalies
D. mutation
Answer: | A |
null | Question: The lungs are a series of ever-narrowing tubes that end in a myriad of tiny sacs called what?
Options:
A. alveoli
B. testes
C. glands
D. brachii
Answer: | A |
null | Question: What was the first mass extinction that occurred on earth?
Options:
A. proterozoic mass extinction
B. precambrian mass extinction
C. late Devonian mass extinction
D. paleozoic mass extinction
Answer: | B |
null | Question: What is the basis of enzyme classification?
Options:
A. reactions they catalyze
B. their shape
C. their mass
D. their color
Answer: | A |
null | Question: The top of the saturated rock layer is called what?
Options:
A. compressed layer
B. calcified layer
C. sand layer
D. water table
Answer: | D |
null | Question: What process involves the flow of heat from warmer objects to cooler objects?
Options:
A. conduction
B. radiation
C. convection
D. activation
Answer: | A |
null | Question: What type of virus can cause painful sores on the mouth and genitals?
Options:
A. gonorrhea
B. Aids
C. syphilis
D. herpes
Answer: | D |
null | Question: What are the smallest particles of elements that maintain their unique properties?
Options:
A. protons
B. molecules
C. electrons
D. atoms
Answer: | D |
null | Question: When are peptide bonds between amino acids formed?
Options:
A. process of production
B. process of translation
C. process of transcription
D. process of migration
Answer: | B |
null | Question: What are found primarily in lines around the edges of some continents?
Options:
A. volcanoes
B. glaciers
C. earthquakes
D. Reefs
Answer: | C |
null | Question: What phase does dna replication occur in the cell cycle?
Options:
A. synthesis
B. Gap 0
C. Mitosis
D. apoptosis
Answer: | A |
null | Question: What are the three types of mixtures?
Options:
A. cosmic , suspensions , colloids
B. Powders, Gels, Smooth
C. solutions, suspensions, colloids
D. absorbing , suspensions , colloids
Answer: | C |
null | Question: The lungs, kidneys, skin, and large intestine are all part of what organ system?
Options:
A. sensory
B. digestive
C. excretory
D. respiratory
Answer: | C |
null | Question: The duodenum is the first and the shortest part of what, and is where most chemical digestion takes place?
Options:
A. stomach
B. large intestine
C. rectum
D. small intestine
Answer: | D |
null | Question: What has the least amount of energy in an atom?
Options:
A. crystals
B. electrons
C. rings
D. protons
Answer: | B |
null | Question: What do you call an abnormal mass formed when cells divide uncontrollably?
Options:
A. infection.
B. tumor
C. inflammation
D. layer
Answer: | B |
null | Question: What is in danger of happening when thick magma is formed?
Options:
A. explosive eruptions
B. continuous eruptions
C. focused eruptions
D. earthquakes
Answer: | A |
null | Question: How does a reduced sweating ability affect elderly people?
Options:
A. extreme heat intolerance
B. extreme tiredness
C. loss of mental ability
D. less energy
Answer: | A |
null | Question: What is the minimum depth in the aphotic zone?
Options:
A. 150 meters
B. 200 meters
C. 450 meters
D. 10 meters
Answer: | B |
null | Question: The chemical used by the ants to weed their garden turns out to be what kind?
Options:
A. sealant acid
B. nitric acid
C. formic acid
D. sulfide acid
Answer: | C |
null | Question: What does a cell need to transform into a cancerous cell?
Options:
A. adaptations
B. parasites
C. mutations
D. microbes
Answer: | C |
null | Question: What are the poles labeled?
Options:
A. west and south
B. north and south
C. east and west
D. southwest and south
Answer: | B |
null | Question: What should you let liquid waste do before placing the container in the trash?
Options:
A. evaporate
B. melt
C. generate
D. expand
Answer: | A |
null | Question: Living things are highly organized following a hierarchy that includes atoms, molecules, organelles, cells, tissues, organs, and organ systems. organisms, in turn, are grouped as populations, communities, ecosystems, and this?
Options:
A. biosphere
B. hydrosphere
C. bionicsphere
D. endosphere
Answer: | A |
null | Question: In the case of the thyroid hormone pathway, thyroid hormone itself carries out what kind of feedback?
Options:
A. effective
B. continued
C. negative
D. positive
Answer: | C |
null | Question: Light is produced when charged particles do what, frequently in the form of oscillating?
Options:
A. decelerate
B. increase
C. offset
D. accelerate
Answer: | D |
null | Question: Although fewer in number than chemical synapses, what type of synapses are found in all nervous systems and play important and unique roles?
Options:
A. electrical synapses
B. beginning synapses
C. dual synapses
D. duplicating synapses
Answer: | A |
null | Question: What type of bond forms by unpaired electrons from two atoms "matching up"?
Options:
A. reactive bond
B. covalent bond
C. magnetic bond
D. accretion bond
Answer: | B |
null | Question: Characteristics of an organism are passed from one generation to the next through what?
Options:
A. genes
B. eggs
C. sperm
D. ribosomes
Answer: | A |
null | Question: What is most of earth's surface covered with?
Options:
A. sand
B. water
C. silicon
D. insects
Answer: | B |
null | Question: What type of reaction causes two substances to combine to make a single substance?
Options:
A. composition reaction
B. component reaction
C. metabolism
D. spontaneous mutation
Answer: | A |
null | Question: What is the process in which a solid changes directly to a gas called?
Options:
A. solidification
B. condensation
C. sublimation
D. vaporization
Answer: | C |
null | Question: Birds have air sacs that store inhaled air and push it into their what?
Options:
A. lungs
B. beaks
C. abdomens
D. bones
Answer: | A |
null | Question: Which division of the peripheral nervous system carries messages from sense organs and internal organs to the central nervous system?
Options:
A. extrasensory division
B. neural division
C. sensory division
D. vascular division
Answer: | C |
null | Question: What do fungi absorb to get their nutrition?
Options:
A. air
B. soil
C. water
D. organic compounds from other organisms
Answer: | D |
null | Question: Distillation is an effective method to separate mixtures comprised of two or more what?
Options:
A. ionic compounds
B. elements
C. pure liquids
D. solutes
Answer: | C |
null | Question: After what state is reached, the concentrations of all reaction components remain constant unless a change is made to the system?
Options:
A. equality
B. level
C. equilibrium
D. homeostasis
Answer: | C |
null | Question: An oxy-acetylene torch is an effective way to cut what?
Options:
A. wood
B. coal
C. metal
D. plastic
Answer: | C |
null | Question: What stages in the life of a cell does the cell cycle include?
Options:
A. adult stages
B. intermediate stages
C. both
D. all
Answer: | D |
null | Question: From what did the first proto-oncogenes arise?
Options:
A. viral infections
B. spores
C. bacteria
D. carcinogens
Answer: | A |
null | Question: What is the acid that is released by the stomach that kills most pathogens that enter the stomach?
Options:
A. hydrochloric acid
B. Nitric Acid
C. Hydrofluoric Acid
D. Sulfuric Acid
Answer: | A |
null | Question: What is the name of the smallest planet in our solar system, which is also nearest to the sun?
Options:
A. mars
B. mercury
C. earth
D. jupitor
Answer: | B |
null | Question: Arthropods today have two unusual hox genes, both of which influence what?
Options:
A. motility
B. segmentation
C. reproduction
D. compression
Answer: | B |
null | Question: What is the main artery of the systematic circulation called?
Options:
A. carotid
B. femoral
C. aorta
D. subclavian
Answer: | C |
null | Question: What are unsaturated hydrocarbons with at least one triple bond between carbon atoms?
Options:
A. lipids
B. alkynes
C. ketones
D. amines
Answer: | B |
null | Question: What term describes the process where organisms convert atmospheric nitrogen into biologically useful chemicals?
Options:
A. cellular respiration
B. photosynthesis
C. nitrogen fixation
D. carbon cycle
Answer: | C |
null | Question: What is the medial bone of the forearm that runs parallel to the radius?
Options:
A. radius
B. fibula
C. humerus
D. ulna
Answer: | D |
null | Question: Integral and peripheral proteins are associated with what fatty bilayer?
Options:
A. lipid
B. protein
C. carbohydrate
D. cartilage
Answer: | A |
null | Question: What are the major sites of gibberellin production?
Options:
A. flower and fruit
B. young roots and leaves
C. stem and roots
D. soil and leaves
Answer: | B |
null | Question: What is required to partially overcome the attractive forces between molecules in a solid to form a liquid?
Options:
A. oxygen
B. hydrogen
C. fuel
D. energy
Answer: | D |
null | Question: What kind of relationship between glucagon and insulin is vital to managing fuel storage and consumption by body cells?
Options:
A. opportunistic
B. antagonistic
C. commensalism
D. sympathetic
Answer: | B |
null | Question: What causes water molecules to stay close to each other?
Options:
A. hydrogen bonding
B. surface tension
C. friction
D. oxidation
Answer: | A |
null | Question: The electroplating process transfers metal from the anode to which part of the cell?
Options:
A. electrode
B. plasma
C. cathode
D. atom tube
Answer: | C |
null | Question: What is the unsorted pile of material dropped by glaciers called?
Options:
A. glacial runoff
B. landfill
C. glacial till
D. icy deposit
Answer: | C |
null | Question: What does sexual reproduction with gametes and fertilization produce?
Options:
A. haploid zygote
B. sister chromatids
C. identical twins
D. diploid sporophyte
Answer: | D |
null | Question: What is the upward force exerted by fluids when any object, such as a boat, is placed in it?
Options:
A. bouyant force
B. atomic force
C. impetuous force
D. human force
Answer: | A |
null | Question: What globular protein is used in the construction of the hollow tube?
Options:
A. cyclin
B. tubulin
C. keratin
D. actin
Answer: | B |
null | Question: Blood volume increases substantially during pregnancy, so that by childbirth, it exceeds its preconception volume by 30 percent, or approximately what?
Options:
A. 2-3 liters
B. 3-5 liters
C. 1-2 liters
D. 0-1 liters
Answer: | C |
null | Question: What state of matter has a definite volume, but not a definite shape?
Options:
A. solid
B. gas
C. mixture
D. liquid
Answer: | D |
null | Question: How many main types of diabetes are there?
Options:
A. one
B. two
C. three
D. six
Answer: | B |
null | Question: What is the term for getting the same results when an experiment is repeated, which implies the results are valid?
Options:
A. evolution
B. replication
C. verification
D. extraction
Answer: | B |
null | Question: What is the cartilaginous structure that extends from the pharynx to the primary bronchi?
Options:
A. sternohyoid
B. trachea
C. cricoid
D. larynx
Answer: | B |
null | Question: Dinitrophenol (dnp) is an uncoupler that makes the inner mitochondrial membrane leaky to protons. it was used until 1938 as a what?
Options:
A. immune system booster
B. weight loss drug
C. sleep loss drug
D. bone density drug
Answer: | B |
null | Question: What is the main makeup of the cell membrane?
Options:
A. phospholipids
B. glucose
C. antibodies
D. filaments
Answer: | A |
null | Question: Within the petals are two whorls of fertile floral organs that produce what?
Options:
A. fibers
B. toxins
C. leaves
D. spores
Answer: | D |
null | Question: What is another term for ghost sharks?
Options:
A. aurea
B. litoria
C. anascea
D. chimaera
Answer: | D |
null | Question: What form does formaldehyde take at room temperature?
Options:
A. gas
B. plasma
C. liquids
D. solid
Answer: | A |
null | Question: Dispersal occurs only on what time scale?
Options:
A. developmental
B. regular
C. evolutionary
D. conventional
Answer: | C |
null | Question: Yogurt is made from milk fermented with what type of organism?
Options:
A. viruses
B. yeast
C. bacteria
D. algae
Answer: | C |
null | Question: What is the ability to be attracted by a magnet and to act as a magnet?
Options:
A. electrical attraction
B. inertia
C. magnetism
D. polarization
Answer: | C |
null | Question: A rounded hollow carved in the side of a mountain by a glacier is known as?
Options:
A. a crest
B. a cavern
C. a crater
D. a cirque
Answer: | D |
null | Question: What does the coefficient in front of an element in a formula indicate?
Options:
A. how much is involved in the reaction
B. number of atoms
C. time of the reaction
D. place on the Periodic Table
Answer: | A |
null | Question: What are compounds composed of only two elements called?
Options:
A. binary compounds
B. kinetic compounds
C. digital compounds
D. symbiotic compounds
Answer: | A |
null | Question: In animals, how many sets of chromosomes do gametes have?
Options:
A. 23
B. zero
C. 2
D. one
Answer: | D |
null | Question: Where do germline mutations occur in?
Options:
A. in spores
B. in aggregations
C. in gametes
D. In blood cells
Answer: | C |
null | Question: Generators usually transform kinetic energy into what kind of energy?
Options:
A. subsequent energy
B. potential energy
C. nuclear energy
D. electrical energy
Answer: | D |
null | Question: The substances that comprise heterogeneous mixtures can also be separated by what means?
Options:
A. physical
B. atmospheric
C. chemical
D. thermal
Answer: | A |
null | Question: Unlike theories, which are proved true, what are often falsified?
Options:
A. controls
B. hypotheses
C. samples
D. conclusions
Answer: | B |
null | Question: Sphenodontia sphenodontia (“wedge tooth”) arose in the mesozoic era and includes only one of what?
Options:
A. outside genus
B. inner genus
C. traveling genus
D. living genus
Answer: | D |
null | Question: What is the term for electric current that keeps reversing direction?
Options:
A. alternating current
B. AC/DC
C. direct current
D. magnetic current
Answer: | A |
null | Question: Where do cells come from?
Options:
A. nuclear fission
B. preexisting cells
C. mutations
D. sexual reproduction
Answer: | B |
null | Question: How is a reaction described when the given conditions favor formation of products?
Options:
A. planned
B. fluctuations
C. spontaneous
D. instantaneous
Answer: | C |
null | Question: What element enters the body when an organism breathes?
Options:
A. helium
B. oxygen
C. water
D. methane
Answer: | B |
null | Question: How can bacterial stis usually be cured?
Options:
A. antivirals
B. antiinflammatories
C. tylenol
D. with antibiotics
Answer: | D |
null | Question: What type of tissue covers the outside of a plant?
Options:
A. porous
B. dermal
C. anterior
D. epidermal
Answer: | B |
null | Question: What exposure risk comes with aerobic respiration?
Options:
A. oxygen toxicity
B. carbon toxicity
C. helium toxicity
D. nitrogen toxicity
Answer: | A |
null | Question: Helices, spheres, and rods are examples of what distinguishing property of prokaryotic cells?
Options:
A. color
B. texture
C. size
D. shape
Answer: | D |
null | Question: Temperature and pressure affect changes in phases or states of what?
Options:
A. decay
B. energy
C. homeostasis
D. matter
Answer: | D |
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