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What compound has positive and negative ions?
A. hydrocarbon
B. covalent
C. protein
D. ionic
Answer:
|
D
|
sciq
|
What can be calculated given the mass and speed of an object?
A. harmonic energy
B. residual energy
C. kinetic energy
D. systematic energy
Answer:
|
C
|
sciq
|
Earthquakes mark the motions of colliding plates and the locations where plates plunge into what?
A. the crust
B. the mesosphere
C. the core
D. the mantle
Answer:
|
D
|
sciq
|
The ambrosia beetle bores holes in?
A. dirt
B. leaves
C. flowers
D. tree bark
Answer:
|
D
|
sciq
|
What effect, related to weather forecasting, occurs not only for sound but for any wave when there is relative motion between the observer and the source?
A. pulse
B. precipitation
C. doppler
D. echo
Answer:
|
C
|
sciq
|
What is the science of how traits are passed from parents to offspring?
A. heredity
B. cross matching
C. genetics
D. alleles
Answer:
|
A
|
sciq
|
When an electron transitions from an excited state to a less excited state, or ground state, the difference in energy is emitted as a what?
A. nucleus
B. quark
C. photon
D. neutron
Answer:
|
C
|
sciq
|
Water from the land and oceans enters the atmosphere by which process?
A. transpiration
B. condensation
C. evaporation
D. absorption
Answer:
|
C
|
sciq
|
What country put seven salyut space stations into orbit between 1971 and 1982?
A. Japan
B. soviet union
C. United States
D. China
Answer:
|
B
|
sciq
|
The result of what, in places like the amazon rainforest, is that food will be harder to produce, clean water will be harder to find, and development of new medicines will become slower?
A. environmnental loss
B. biological loss
C. pollution loss
D. biodiversity loss
Answer:
|
D
|
sciq
|
What does rising and sinking air influence in a region?
A. erosion
B. precipitation
C. temperature
D. tides
Answer:
|
B
|
sciq
|
Refracting and reflecting telescopes are optical telescopes that use lenses to gather what?
A. light
B. sound
C. electricity
D. magnetic force
Answer:
|
A
|
sciq
|
Via what process do substance move from one cell to another?
A. reverse transferase
B. plasmodesmata
C. autolysis
D. downregulation
Answer:
|
B
|
sciq
|
What is a stellar remnant that is very dense?
A. asteroids
B. white dwarf
C. white star
D. the sun
Answer:
|
B
|
sciq
|
What methods allow scientists to add to scientific knowledge and gain a better understanding of the world?
A. early investigations
B. through investigations
C. slow investigations
D. close investigations
Answer:
|
B
|
sciq
|
What is the largest level of organization?
A. genome
B. protein
C. organism
D. organelle
Answer:
|
C
|
sciq
|
Living species of chordates are classified into three major subphyla: vertebrata, urochordata, and what?
A. spirogyra
B. xerophyte
C. cephalochordata
D. invertebrates
Answer:
|
C
|
sciq
|
What force explains why a tennis ball bounces differently on different surfaces, and shoes slip on some surfaces but stick on others?
A. kinetics
B. friction
C. temperature
D. vibration
Answer:
|
B
|
sciq
|
The term ion applies to entire molecules that are?
A. neutrally charged
B. magnetic
C. positively charged protons
D. electrically charged
Answer:
|
D
|
sciq
|
Silicon and germanium react with nitrogen at high temperature to form what?
A. oxides
B. isotopes
C. nitrides
D. carbonates
Answer:
|
C
|
sciq
|
What bond is the force of attraction that holds together oppositely charged ions?
A. ionic
B. iconic
C. magnetic
D. harmonic
Answer:
|
A
|
sciq
|
What is the pairing of an adult male to an adult female to produce young?
A. mating
B. evolution
C. asexual reproduction
D. binary fission
Answer:
|
A
|
sciq
|
The cell expels waste and other particles through a process called what?
A. endocytosis
B. metamorphisis
C. exocytosis
D. biosynthesis
Answer:
|
C
|
sciq
|
What are diodes, transistors, and integrated circuits examples of?
A. radio parts
B. machine parts
C. computer parts
D. electronic components
Answer:
|
D
|
sciq
|
Shedding of dead cells ensures constant renewal of what outer layer of the skin?
A. epidermis
B. scale
C. cuticle
D. dermis
Answer:
|
A
|
sciq
|
What causes cumulus clouds to grow upward?
A. convection currents
B. gas currents
C. mantle currents
D. moisture currents
Answer:
|
A
|
sciq
|
What term is used to describe a region getting significantly less precipitation than normal for an extended period of time?
A. dog days
B. drought
C. doldrums
D. flood
Answer:
|
B
|
sciq
|
What is the name for compounds that contain only carbon and hydrogen?
A. particles
B. hydrocarbons
C. carbides
D. carbohydrates
Answer:
|
B
|
sciq
|
What human disease is caused by a defective enzyme that is unable to produce melanin, the pigment responsible for the color of skin and hair?
A. albinism
B. mutations
C. anemia
D. hemophilia
Answer:
|
A
|
sciq
|
Individuals with sickle cell anemia have crescent-shaped what?
A. white blood cells
B. glial cells
C. nerve cells
D. red blood cells
Answer:
|
D
|
sciq
|
Nearly all weather occurs in the lower part of what?
A. the mesosphere
B. the ionosphere
C. the atmosphere
D. the lithosphere
Answer:
|
C
|
sciq
|
For skeletal development, the most common template is what?
A. cartilage
B. membrane
C. collagen
D. calcium
Answer:
|
A
|
sciq
|
The body's second line of defense against pathogens includes which response?
A. blood
B. inflammatory
C. reaction
D. anxiety
Answer:
|
B
|
sciq
|
Hiv is a retrovirus, which means it reverse transcribes its rna genome into what?
A. amino acid chains
B. atp
C. ribosomes
D. dna
Answer:
|
D
|
sciq
|
Plants can tell the time of day and time of year by sensing and using various wavelengths of what
A. lunar cycles
B. sunlight
C. moisture
D. precipitation
Answer:
|
B
|
sciq
|
In eukaryotes, the major mechanism for shuffling genes is what?
A. asexual reproduction
B. suggesting reproduction
C. sexual reproduction
D. subject reproduction
Answer:
|
C
|
sciq
|
The vas deferens and ejaculatory ducts transport sperm from the epididymes to the urethra in what system?
A. famous reproductive system
B. cardiovascular system
C. male reproductive system
D. digestive system
Answer:
|
C
|
sciq
|
What do nearly all animals have in common with regards to digestion?
A. problematic digestion of food
B. external digestion of food
C. complete digestion of food
D. internal digestion of food
Answer:
|
D
|
sciq
|
What are the secretions released by the endocrine glands called?
A. acids
B. hormones
C. fluids
D. enzymes
Answer:
|
B
|
sciq
|
What are chromosomes in the same pair called?
A. regulated chromosomes
B. reversible chromosomes
C. homogeneous chromosomes
D. homologous chromosomes
Answer:
|
D
|
sciq
|
What do you call plastids that contain the green pigment chlorophyll?
A. chloroplasts
B. Gerontoplasts
C. Leucoplasts
D. Chromoplasts
Answer:
|
A
|
sciq
|
What important and unusual physical property (for birds) do ostriches and penguins share?
A. waterproofness
B. flightlessness
C. bonelessness
D. webbed feet
Answer:
|
B
|
sciq
|
What are changes in membrane potential that vary continuously with the strength of a stimulus are known as?
A. variable potentials
B. graded potentials
C. kinetic energy
D. reverse potentials
Answer:
|
B
|
sciq
|
The moon has a crust, mantle, and a?
A. ice cap
B. mountain range
C. core
D. magnetic field
Answer:
|
C
|
sciq
|
What type of coal is formed at lower temperatures?
A. bituminous
B. calcareous
C. limestones
D. clean
Answer:
|
A
|
sciq
|
What can sodium ions not pass through?
A. Lipid Control
B. benthic lipid bilayer
C. nonpolar lipid bilayer
D. narrowness lipid bilayer
Answer:
|
C
|
sciq
|
What happens when the kidneys cannot remove wastes from the blood?
A. choanocyte failure
B. kidney failure
C. tissue failure
D. intestinal failure
Answer:
|
B
|
sciq
|
What is another name for nearsightedness?
A. myopia
B. astigmatism
C. hyperopia
D. presbyopia
Answer:
|
A
|
sciq
|
What is the innermost layer of the sun called?
A. Convection Zone
B. Photosphere
C. Chromosphere
D. the core
Answer:
|
D
|
sciq
|
What device is used to study charge?
A. nannostomus
B. electroscope
C. microtome
D. microscope
Answer:
|
B
|
sciq
|
What term is used to describe large numbers of species that go extinct in a short amount of time?
A. formation extinction
B. species extinction
C. organic extinction
D. mass extinction
Answer:
|
D
|
sciq
|
What is the tiny male gametophyte enclosed in a tough capsule?
A. calcium
B. pollen
C. Cell Capsule
D. nitrogen
Answer:
|
B
|
sciq
|
When zinc reacts with hydrochloric acid, the reaction bubbles vigorously as which type of gas is produced?
A. nitrogen
B. oxygen
C. chlorine
D. hydrogren
Answer:
|
D
|
sciq
|
Structural adaptations in flying animals often contribute to reduced what?
A. blood flow
B. eyesight
C. respiration
D. body mass
Answer:
|
D
|
sciq
|
What diagram is used to reflect evolutionary relationships among organisms or groups of organisms?
A. relationships tree
B. conceptual tree
C. biodiversity tree
D. phylogenetic tree
Answer:
|
D
|
sciq
|
What is the energy called that is stored in matter?
A. possible
B. potential
C. stored energy
D. mechanical
Answer:
|
B
|
sciq
|
What is the term for traits that show wide variation, such as height, skin color, and eye color?
A. polygenic traits
B. recessive traits
C. maladaptive traits
D. inherited traits
Answer:
|
A
|
sciq
|
Which system in the human body consists of the heart, a network of blood vessels, and blood?
A. cardiovascular system
B. nervous system
C. circulatory system
D. cardiac system
Answer:
|
A
|
sciq
|
Volume is another way of measuring what?
A. length
B. height
C. material
D. weight
Answer:
|
C
|
sciq
|
What do you call a science that aims to find solutions to practical problems?
A. applied science
B. experimental science
C. evolved science
D. applied experience
Answer:
|
A
|
sciq
|
What term describes weathering that occurs as water expands when it freezes, wedging apart rock?
A. erosion
B. mechanical weathering
C. chemical weathering
D. cleavage
Answer:
|
B
|
sciq
|
How many pairs of chromosomes are found in human cells?
A. 13
B. 24
C. 25
D. 23
Answer:
|
D
|
sciq
|
An aqueous solution is a homogeneous mixture in which the most abundant component is what?
A. blood
B. water
C. air
D. oxygen
Answer:
|
B
|
sciq
|
What happens to light when it reflects from a rough surface?
A. becomes isolated
B. becomes concentrated
C. reflects
D. gets diffused
Answer:
|
D
|
sciq
|
Isothermal expansion is a process occurring without a change in?
A. weight
B. precipitation
C. temperature
D. variation
Answer:
|
C
|
sciq
|
Nearly all fish reproduce sexually and have what?
A. flexible sexes
B. single sexes
C. separate sexes
D. modified sexes
Answer:
|
C
|
sciq
|
Cilia and flagella are generally associated with what function in organisms, whether the function is internal or external?
A. digestion
B. movement
C. sight
D. reproduction
Answer:
|
B
|
sciq
|
Do particles collide more in two reactants when they are both in fluid forms or solid forms?
A. fluid
B. plasma
C. neither
D. solid
Answer:
|
A
|
sciq
|
The process of moving from areas of high amounts to areas of low amounts is called what?
A. filtration
B. transfer
C. deposition
D. diffusion
Answer:
|
D
|
sciq
|
Vascular tissue allowed these plants to do what?
A. grow taller
B. have more flowers
C. live shorter
D. grow smaller
Answer:
|
A
|
sciq
|
What were the first forms of life on earth?
A. protists
B. aniryotes
C. prokaryotes
D. eukaryotes
Answer:
|
C
|
sciq
|
What warms the base of the mantle creating convection currents there?
A. molten lava
B. the hot regenerate
C. mantle soil
D. the hot core
Answer:
|
D
|
sciq
|
What do we call an incorrect test result that should have been positive?
A. personal negative
B. external positive
C. false negative
D. false positive
Answer:
|
C
|
sciq
|
The conversion factor between solubility and molar solubility of a compound is known as what?
A. molar mass
B. stochastic mass
C. mass effect
D. molar value
Answer:
|
A
|
sciq
|
What describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell?
A. autolysis
B. expulsion
C. endocytosis
D. exocytosis
Answer:
|
D
|
sciq
|
Out of the four ways that allele frequencies of a population can be changed, which way is caused by individuals leaving or joining the population?
A. gene flow
B. spontaneous mutation
C. Allopatric speciation
D. mass extinction
Answer:
|
A
|
sciq
|
What kind of bond doesn't form molecules, but instead forms crystals?
A. ionic bonds
B. magnetic bonds
C. covalent bonds
D. electron bonds
Answer:
|
A
|
sciq
|
Where does the natural synthesis of lactose occur?
A. ovarian tissue
B. nervous tissue
C. mammary tissue
D. liver tissue
Answer:
|
C
|
sciq
|
The ratio between the radii of a wheel and axle determines what?
A. fundamental mechanical advantage
B. ideal mechanical advantage
C. theoretical mechanical advantage
D. introduced mechanical advantage
Answer:
|
B
|
sciq
|
What is the first stage of cellular respiration called?
A. reproduction
B. glycolysis
C. appetite
D. photosynthesis
Answer:
|
B
|
sciq
|
Many species use their body shape and coloration to avoid being detected by what?
A. viruses
B. males
C. predators
D. biology
Answer:
|
C
|
sciq
|
A reference point is used in measurement to make what?
A. estimation
B. regression
C. focal point
D. deviation
Answer:
|
A
|
sciq
|
Why do adult herbivores in a herd surround their young?
A. to protect them as they are vulnerable to predators
B. to keep them warm on long cold nights
C. to protect them from other adult herbivores
D. to show them love
Answer:
|
A
|
sciq
|
When orders are sent from your brain to your legs, these signals pass through what type of cells?
A. nerve cells
B. mobility cells
C. molecules
D. skin cells
Answer:
|
A
|
sciq
|
What is the leading cause of soil erosion?
A. glacier movement
B. volcanic explosions
C. running water
D. tidal winds
Answer:
|
C
|
sciq
|
What class of organisms help decompose matter to release nutrients and make nutritious food for other organisms ?
A. coral
B. yeast
C. bacteria
D. fungi
Answer:
|
D
|
sciq
|
A pedigree is a chart which shows the inheritance of a trait over several what?
A. organisms
B. events
C. centuries
D. generations
Answer:
|
D
|
sciq
|
The release of calcium ions initiates what?
A. muscle contractions
B. spasms
C. exhalation
D. cramps
Answer:
|
A
|
sciq
|
The electron released during beta decay is not an orbital electron but an electron whose origin was where?
A. outside the nucleus
B. in the nucleus
C. orbiting the nucleus
D. connected to the nucleus
Answer:
|
B
|
sciq
|
What is created by the polymerization of glucose?
A. cellulose
B. glucose
C. methane
D. carbonate
Answer:
|
A
|
sciq
|
Fungi reproduce asexually by fragmentation and either sexually or asexually via what lightweight, windblown structures?
A. spores
B. ions
C. lesions
D. seeds
Answer:
|
A
|
sciq
|
The desire to understand how and why things happen is shared by all branches of what?
A. science
B. society
C. population
D. government
Answer:
|
A
|
sciq
|
The scientific revolution took place where starting in the 1500s?
A. africa
B. europe
C. south america
D. north america
Answer:
|
B
|
sciq
|
Ionic bonds are electrostatic attractions between two oppositely charged what?
A. molecules
B. compounds
C. gasses
D. ions
Answer:
|
D
|
sciq
|
What is the theoretical event that began the universe often called?
A. dark matter
B. string theory
C. big bang
D. Coreolis effect
Answer:
|
C
|
sciq
|
In the cardiovascular system, net filtration pressure represents the interaction of osmotic pressures and what other pressures?
A. homeostatic
B. uptake
C. hydrophilic
D. hydrostatic
Answer:
|
D
|
sciq
|
What attracts the earth to the sun?
A. weight
B. light
C. the moon
D. gravity
Answer:
|
D
|
sciq
|
Fermat’s principle states that light will always take the path of least amount of?
A. energy
B. time
C. momentum
D. resistance
Answer:
|
B
|
sciq
|
Many enzymes require nonprotein helpers for what activity?
A. catalytic
B. functional
C. hydrogen
D. kinetic
Answer:
|
A
|
sciq
|
What is often a result of untreated atherosclerosis?
A. heart disease
B. a heart attack or stroke
C. seizures
D. cancer
Answer:
|
B
|
sciq
|
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