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