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null | Question: A major diversification of what animal group occurred about 50 million years ago, possibly spurred by worldwide climate change?
Options:
A. amphibians
B. insects
C. reptiles
D. mammals
Answer: | D |
null | Question: All organisms must adapt to what in order to survive?
Options:
A. conditions
B. weather
C. natural
D. environment
Answer: | D |
null | Question: What is the term for viscous magmas that are high in silica and tend to stay below the surface or erupt explosively?
Options:
A. felsic magmas
B. sedimentary magmas
C. combustible magmas
D. compacted magmas
Answer: | A |
null | Question: What determines which type of precipitation falls in the atmosphere?
Options:
A. air temperature
B. moon phase
C. time of day
D. air density
Answer: | A |
null | Question: The average global temperature has been rising since the end of what era?
Options:
A. flintstone
B. miocene
C. pleistocene
D. glacial
Answer: | C |
null | Question: What happens if a person doesn’t take in enough water to replace the water lost in sweat?
Options:
A. fatigue
B. dehydration
C. relaxation
D. diarrhea
Answer: | B |
null | Question: Matter can exist either as a pure substance or as a combination of what?
Options:
A. Different Liquids
B. much substances
C. different vapors
D. different substances
Answer: | D |
null | Question: Each proton has how many units of positive charge?
Options:
A. three
B. one
C. zero
D. two
Answer: | B |
null | Question: All living things need air and this to survive?
Options:
A. ecosystem
B. water
C. habitat
D. stimuli
Answer: | B |
null | Question: What's caused by damaged capillaries in the kidneys so the nephrons can no longer filter blood?
Options:
A. colon failure
B. kidney failure
C. sponge failure
D. bacteria failure
Answer: | B |
null | Question: During what are deletions and duplications especially likely to occur?
Options:
A. meiosis
B. endothermia
C. nucleus
D. electrolysis
Answer: | A |
null | Question: How many years can dissolved carbon be stored in the deep ocean?
Options:
A. thousands
B. tens
C. unknown
D. hundreds
Answer: | A |
null | Question: Movement of water and minerals in the xylem solutes, pressure, gravity, and matric potential are all important for what?
Options:
A. plant water transport
B. increase water transport
C. Moving Water Transport
D. produce water transport
Answer: | A |
null | Question: What are the three fundamental phases of matter?
Options:
A. solid, liquid, and gas
B. big, small. and medium
C. fast, slow, normal
D. air, water, and land
Answer: | A |
null | Question: Cellular respiration involves forming atp from what type of sugar?
Options:
A. sucrose
B. glucose
C. fructose
D. glutamate
Answer: | B |
null | Question: What forms at the boundary between two air masses?
Options:
A. a rough
B. a front
C. hurricane
D. a cool
Answer: | B |
null | Question: A habitat’s features are determined mainly by abiotic factors such as?
Options:
A. oxygen and rainfall
B. temperature and rainfall
C. mixing and rainfall
D. length
Answer: | B |
null | Question: Predicting the possible genotypes and phenotypes from a genetic cross is often aided by a what?
Options:
A. dinobot square
B. axle square
C. balusters square
D. punnett square
Answer: | D |
null | Question: If a solute is a gas, increasing the temperature will do what?
Options:
A. decrease its solubility
B. increase its solubility
C. have no effect
D. change to liquid
Answer: | A |
null | Question: What is the name of the bone that forms the forehead?
Options:
A. high bone
B. frontal bone
C. forebone
D. upper bone
Answer: | B |
null | Question: What cellular process is controlled by allosteric enzymes at key points in glycolysis and the citric acid cycle?
Options:
A. photosynthesis
B. Metabolism
C. mitosis
D. cellular respiration
Answer: | D |
null | Question: The heart is a muscular organ that pumps blood through which system?
Options:
A. nervous
B. circulatory
C. endocrine
D. pulmonary
Answer: | B |
null | Question: What occurs when a parent organism breaks into fragments, or pieces, and each fragment develops into a new organism?
Options:
A. absorption
B. fragmentation
C. sollution
D. erosion
Answer: | B |
null | Question: How are voltmeters placed in the circuit?
Options:
A. after parallel
B. since parallel
C. not parallel
D. in parallel
Answer: | D |
null | Question: What causes an elastic force in springs?
Options:
A. stretching or compressing
B. freezing
C. velocity
D. momentum
Answer: | A |
null | Question: What term is used to describe a solution in which water is the solvent?
Options:
A. liquids solution
B. hydro solution
C. sediment solution
D. aqueous solution
Answer: | D |
null | Question: Cancer develops when what process is unregulated?
Options:
A. metabolism
B. cellular respiration
C. cell division
D. meiosis
Answer: | C |
null | Question: Monomers of condensation polymers must contain how many functional groups so that each monomer can link up with two other monomers?
Options:
A. three
B. four
C. two
D. one
Answer: | C |
null | Question: Reaching conclusions about unobserved things on the basis of what has already been observed is known as what kind of reasoning?
Options:
A. reductive
B. inductive
C. primitive
D. conductive
Answer: | B |
null | Question: What are the trillions of bacteria living within the large intestine called?
Options:
A. bacteria flora
B. probiotic
C. intastinal flora
D. microflora
Answer: | A |
null | Question: When vertebrate animals metabolize ammonia what is the primary byproduct that is produced?
Options:
A. proteins
B. dioxide
C. urea
D. carbon monoxide
Answer: | C |
null | Question: What is another name for collar cells?
Options:
A. sporozoans
B. enzymes
C. clutches
D. choanocytes
Answer: | D |
null | Question: A black solid by itself, this element is incredibly important because of what it makes when it combines with many other elements, including oxygen?
Options:
A. carbon
B. hydrogen
C. lead
D. dioxide
Answer: | A |
null | Question: Why is the drift velocity negligible?
Options:
A. less free charges
B. many free charges
C. shows free charges
D. need free charges
Answer: | B |
null | Question: What is it called when waves spread out as they travel around obstacles or through openings in obstacles?
Options:
A. diffraction
B. diffusion
C. absorption
D. destruction
Answer: | A |
null | Question: What do you call a species that has died out in the past?
Options:
A. endangered
B. remnant
C. inhabit
D. extinct
Answer: | D |
null | Question: What is the main type of cell in the nervous system called?
Options:
A. neuron
B. sensory
C. axon
D. conduction
Answer: | A |
null | Question: Where does the shoot system get the water and minerals that it depends on?
Options:
A. the seeds
B. the soil
C. surrounding plants
D. the air
Answer: | B |
null | Question: Which highly valuable substance found in jewelry has a density of about 19 g/cm^3?
Options:
A. diamonds
B. rubies
C. gold
D. silver
Answer: | C |
null | Question: By breaking down organic matter, roundworms play an important role in which cycle?
Options:
A. metamorphic cycle
B. carbon cycle
C. circadian cycle
D. water cycle
Answer: | B |
null | Question: In multicellular organisms, only mutations in cell lines that produce gametes can be passed to what?
Options:
A. clones
B. proteins
C. offspring
D. cells
Answer: | C |
null | Question: What is defined as a close relationship between organisms of different species in which at least one of the organisms benefits?
Options:
A. co-operative
B. parasitic
C. endosymbiosis
D. symbiosis
Answer: | D |
null | Question: Nutrients from food are absorbed by the blood for transport around the body as part of what system?
Options:
A. growth
B. digestive
C. respiratory
D. circulatory
Answer: | B |
null | Question: Sucrose consists of one molecule of glucose and one molecule of what else?
Options:
A. alcohol
B. lactose
C. fructose
D. protein
Answer: | C |
null | Question: Which radio frequency should you listen to if you want less noise?
Options:
A. fm
B. wave
C. am
D. cb
Answer: | A |
null | Question: Where in the lungs does gas exchange between the air and blood takes place?
Options:
A. left lobe
B. bronchial tube
C. ganglion
D. alveoli
Answer: | D |
null | Question: Acne results from a blockage of sebaceous glands by what?
Options:
A. sebum
B. mucous
C. progesterone
D. fat
Answer: | A |
null | Question: What kind of enzyme is phosphofructokinase?
Options:
A. covalent
B. allosteric
C. intracellular
D. orthosteric
Answer: | B |
null | Question: Liquefaction ccurs when the molecules of a gas are cooled to the point where they no longer possess sufficient kinetic energy to overcome what?
Options:
A. intermolecular attractive forces
B. gravitational attractive forces
C. bonding attractive forces
D. intermolecular gravitational forces
Answer: | A |
null | Question: When orders are sent from your brain to your legs, these signals pass through what type of cells?
Options:
A. molecules
B. nerve cells
C. skin cells
D. mobility cells
Answer: | B |
null | Question: By applying salt to an icy road, the melting point of the ice is what?
Options:
A. increased
B. concentrated
C. decreased
D. compounded
Answer: | C |
null | Question: The activation of what kind of buds induces branching?
Options:
A. arterial buds
B. axillary buds
C. leafy buds
D. lymphatic buds
Answer: | B |
null | Question: What are two of the most common vision problems?
Options:
A. nearsightedness and farsightedness
B. myopia and nearsightedness
C. cross-eye and blindness
D. blindness and astigmatism
Answer: | A |
null | Question: What effect in the atmosphere ensures that the earth maintains the correct temperature to support life?
Options:
A. smog effect
B. coriolis effect
C. greenhouse effect
D. ozone effect
Answer: | C |
null | Question: An element that is generally a poor conductor of heat and electricity is known as a ______
Options:
A. superconductor
B. magnet
C. alloy
D. nonmetal
Answer: | D |
null | Question: Helicopters store large amounts of rotational energy of what type in their blades?
Options:
A. thermal
B. seismic
C. kinetic
D. magnetic
Answer: | C |
null | Question: Most protein antigens require signals from helper t cells (th2) to proceed to make what?
Options:
A. bacterium
B. protein
C. antibody
D. antioxidant
Answer: | C |
null | Question: Lysosomes have what type of enzymes that break down old molecules into parts that can be recycled?
Options:
A. probiotics
B. corrosive
C. bacterial
D. digestive
Answer: | D |
null | Question: A single, often oversimplified, path through which energy and matter flow through an ecosystem is also known as what?
Options:
A. life cycle
B. food chain
C. fuel chain
D. the chain
Answer: | B |
null | Question: Name the law that determines as to which rock layers are younger or older than others.
Options:
A. law of superposition
B. law of apposition
C. law of gravity
D. geologic theory
Answer: | A |
null | Question: Bromine is much less abundant than fluorine or chlorine, but it is easily recovered from seawater, which contains about 65 mg of br− per what?
Options:
A. foot
B. liter
C. gallon
D. pound
Answer: | B |
null | Question: What travels at a rate of 300,000 kilometers per second, or nearly instantaneously?
Options:
A. gravity
B. sound
C. air
D. light
Answer: | D |
null | Question: An alpha particle, which is emitted during alpha decay, consists of two protons and what else?
Options:
A. two positrons
B. two neutrons
C. two nuclei
D. two electrons
Answer: | B |
null | Question: What happens to a chain of amino acids after it reaches a stop codon?
Options:
A. released from the ribosome
B. metabolism begins
C. digestion stops
D. stays in ribosome
Answer: | A |
null | Question: Deserts and forests are examples of what type of biome?
Options:
A. abundant
B. terrestrial
C. freshwater
D. acquatic
Answer: | B |
null | Question: What fatty material inside arteries can restrict blood flow in the artery?
Options:
A. plaque
B. marble
C. cholesterol
D. collagen
Answer: | A |
null | Question: In human beings, when a female becomes pregnant, what is fertilized and then embedded in the uterus?
Options:
A. sperm
B. follicle
C. egg
D. dna
Answer: | C |
null | Question: Organelles whose membranes are specialized for aerobic respiration are called what?
Options:
A. mitochondria
B. mitosis
C. chloroplasts
D. vacuoles
Answer: | A |
null | Question: What is the term for an infection caused by a fungal parasite?
Options:
A. mycosis
B. mitosis
C. acrobasis
D. mydriasis
Answer: | A |
null | Question: What is the organ that senses sound?
Options:
A. skin
B. eye
C. nose
D. ear
Answer: | D |
null | Question: The electrochemical potential across a membrane determines the tendency of an ion to do what?
Options:
A. cross the membrane
B. attach to the membrane
C. move away from the membrane
D. destroy the membrane
Answer: | A |
null | Question: Monatomic ions have an oxidation number equal to their what?
Options:
A. cost
B. size
C. length
D. charge
Answer: | D |
null | Question: Average global temperature has been doing what for the past several decades?
Options:
A. rising
B. fluctuating
C. falling
D. stabilizing
Answer: | A |
null | Question: What is the process of removing wastes and excess water from the body called?
Options:
A. diffusion
B. inspiration
C. ingestion
D. excretion
Answer: | D |
null | Question: Terrestrial arthropods generally have internal surfaces specialized for what?
Options:
A. water uptake
B. food gathering
C. protection
D. gas exchange
Answer: | D |
null | Question: Converging plates can be oceanic, continental, or one of each. if at least one is oceanic, it will subduct. a subducting plate creates what?
Options:
A. wind
B. volcanoes
C. fires
D. earthquakes
Answer: | B |
null | Question: What do molecules need to do for a reaction to take place?
Options:
A. explode
B. separate
C. collide
D. melt
Answer: | C |
null | Question: What protects a developing flower while it is still a bud?
Options:
A. sepals
B. petals
C. lobes
D. shell
Answer: | A |
null | Question: If an abnormal cell is not prevented from dividing and it divides uncontrollably, what forms?
Options:
A. cyst
B. inflammation
C. edema
D. tumor
Answer: | D |
null | Question: Which is the active ingredient of cereal crop disease, ergot?
Options:
A. pixelation acid
B. amino acid
C. lysergic acid
D. byblis acid
Answer: | C |
null | Question: What do you call compounds that have covalent bonds?
Options:
A. ions
B. valence compound
C. reflectivity compounds
D. covalent compounds
Answer: | D |
null | Question: What is an area in a body of water where nothing grows because there is too little oxygen known as?
Options:
A. missing zone
B. deceased zone
C. dead zone
D. cold zone
Answer: | C |
null | Question: Newly duplicated chromosomes are divided into two daughter nuclei during what stage?
Options:
A. meiosis
B. mitosis
C. symphysis
D. prophase
Answer: | B |
null | Question: Radioactive isotopes have the same chemical properties as stable isotopes of the same element. still, how is radioactive isotope different from stable isotopes?
Options:
A. they emit radiation
B. they emit magnetism
C. they absorb radiation
D. they absorb light
Answer: | A |
null | Question: Most flowers carry both stamens and carpels; however, a few species are capable of what and are nicknamed "perfect" flowers?
Options:
A. self-pollination
B. germination
C. sexual reproduction
D. cloning
Answer: | A |
null | Question: What is electrons in the highest occupied principal energy level of an atom called?
Options:
A. shell electrons
B. gradient electrons
C. valence electrons
D. non-valence electrons
Answer: | C |
null | Question: Atoms of the same element that have different masses are called what?
Options:
A. variations
B. radioactive
C. isotopes
D. mutations
Answer: | C |
null | Question: What two things collide to cause gas pressure?
Options:
A. gas particles and a wave
B. gas particles and an object
C. gas particles and an electron
D. light particles and an object
Answer: | B |
null | Question: What is the term for a dynamic equilibrium that is maintained in body tissues and organs?
Options:
A. homogeneity
B. homeostasis
C. dormancy
D. metabolism
Answer: | B |
null | Question: Anemia, leukemia, hemophilia, and sickle-cell disease are examples of conditions that primarily affect what?
Options:
A. heart
B. blood
C. brain
D. Lungs
Answer: | B |
null | Question: What is the name of the mineral that contains calcium, carbon and oxygen?
Options:
A. calcite
B. quartz
C. cobalt
D. granite
Answer: | A |
null | Question: The first consumption of breast milk or formula floods the newborn’s sterile gastrointestinal tract with beneficial what?
Options:
A. bacteria
B. oxygen
C. disease
D. pathogens
Answer: | A |
null | Question: The conservation of momentum principle can be applied to systems as different as a comet striking earth and a gas containing huge numbers of atoms and these?
Options:
A. protons
B. molecules
C. ions
D. particles
Answer: | B |
null | Question: Both sexes of sockeye salmon turn red with green heads just prior to what?
Options:
A. feeding
B. dying
C. migrating
D. spawning
Answer: | D |
null | Question: What is the bending of waves around a corner called?
Options:
A. diffraction
B. propulsion
C. absorption
D. reflection
Answer: | A |
null | Question: Pinocytosis or "cellular drinking," occurs when the plasma membrane folds inward to form a channel allowing dissolved substances to enter what?
Options:
A. proteins
B. nucleus
C. cell
D. homeostasis
Answer: | C |
null | Question: Both androgen secretion and spermatogenesis occur continuously starting with what?
Options:
A. mutation
B. birth
C. walking
D. puberty
Answer: | D |
null | Question: Overpopulation takes place when the number of organisms in an area exceeds what?
Options:
A. consumers
B. biome size
C. carrying capacity
D. predators
Answer: | C |
null | Question: All chemical reactions involve both reactants and what else?
Options:
A. catalysts
B. consumers
C. energy
D. products
Answer: | D |
null | Question: Varicose veins are veins that become enlarged because the valves no longer do this?
Options:
A. shrink properly
B. enlarge properly
C. open properly
D. close properly
Answer: | D |
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