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Rubber is an example of what type of substances that do not allow electrons to move through them?
A. insulators
B. semi-conductor
C. solids
D. conductor
Answer:
|
A
|
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|
What gland is located in the neck, where it wraps around the trachea?
A. salivary gland
B. adrenal gland
C. pituitary gland
D. thyroid gland
Answer:
|
D
|
sciq
|
What is influences the inhibition of axillary buds by an apical bud?
A. apical dominance
B. eliptical dominance
C. cortical dominance
D. anterior dominance
Answer:
|
A
|
sciq
|
The colorless, odorless gas released when we breath is carbon dioxide. the harmful colorless, odorless gas released when matter is burned is what?
A. carbon monoxide
B. acid monoxide
C. methane
D. carbon trioxide
Answer:
|
A
|
sciq
|
How are bacteria cells similar to our cells?
A. shape and size
B. plasma and number of protons
C. dna and number of protons
D. dna & plasma membrane
Answer:
|
D
|
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|
What kind of health problem can occur in the kidney and potentially cause problems with urination?
A. gallstones
B. infection
C. diabetes
D. kidney stones
Answer:
|
D
|
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|
What can alkenes and alkynes be reduced with to form alkanes?
A. enzymes
B. acids
C. hydrogen gas
D. oxygen
Answer:
|
C
|
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|
The vapor pressures of various liquids depends primarily on the strength of what kind of attractions between individual particles?
A. outer molecular
B. intermolecular
C. diffusion
D. gravitational
Answer:
|
B
|
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|
What is the term for a structure within the cytoplasm that performs a specific job in the cell?
A. mitochondria
B. nucleus
C. ribosome
D. organelle
Answer:
|
D
|
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|
The two members of a given pair of chromosomes are called what?
A. isolated chromosomes
B. tissue chromosomes
C. divergant chromosomes
D. homologous chromosomes
Answer:
|
D
|
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|
What type of organism is used to produce alcoholic beverages and bread?
A. larvae
B. yeast
C. bacteria
D. insects
Answer:
|
B
|
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|
On top of the otolithic membrane is a layer of calcium carbonate crystals, called what?
A. gonads
B. otoliths
C. cones
D. calcites
Answer:
|
B
|
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|
What do we call the locations where electrons are likely to be located around the nucleus?
A. radials
B. orbitals
C. cores
D. isotopes
Answer:
|
B
|
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|
What makes up the central nervous system?
A. spine and lungs
B. brain and heart
C. brain and spinal cord
D. heart and lungs
Answer:
|
C
|
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|
Obligate anaerobes live and grow in the absence of what?
A. molecular nitrogen
B. atomic oxygen
C. molecular carbon
D. molecular oxygen
Answer:
|
D
|
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|
What is the common term for single-celled fungi?
A. prokaryotes
B. yeasts
C. sponges
D. mushrooms
Answer:
|
B
|
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|
What process allows particles too large to move along the stream bed?
A. diffusion
B. saltation
C. impaction
D. channelization
Answer:
|
B
|
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|
Conducting wires have a small degree of what?
A. heat
B. magnetism
C. insulation
D. electrical resistance
Answer:
|
D
|
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|
What allowed life to expand and diversify during the early cambrian period?
A. warm, humid climate
B. cool, humid climate
C. cool, dry climate
D. hot, dry climate
Answer:
|
A
|
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|
What do you call the fast-moving air currents high in the troposphere?
A. wind streams
B. jet streams
C. stationary fronts
D. cyclones
Answer:
|
B
|
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|
What describes a close and long-term interaction between different species?
A. symbiosis
B. dermatitis
C. endosymbiosis
D. parasitic
Answer:
|
A
|
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|
Rudolf virchow developed the hypothesis that cells only come from other cells in what year?
A. 1858
B. 1868
C. 1848
D. 1898
Answer:
|
A
|
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|
Because they have free electrons, metals are able to conduct what?
A. radiation
B. light
C. sound
D. electricity
Answer:
|
D
|
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|
What are oil in folded layers of rock called?
A. oscillations
B. macroparticle
C. dendrites
D. anticlines
Answer:
|
D
|
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|
Lymph vessels are like blood vessels, except they move what instead of blood?
A. air
B. sperm
C. lymph
D. marrow
Answer:
|
C
|
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|
During the first several weeks of development, the cells of the endometrium nourish what?
A. egg
B. embryo
C. nucleus
D. uterus
Answer:
|
B
|
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|
Which type of joints do not allow any movement of the bones?
A. fixed
B. fitted
C. linked
D. attached
Answer:
|
A
|
sciq
|
What type of waves carry energy through matter or space as vibrating electric and magnetic fields?
A. electromagnetic waves
B. mechanical waves
C. light waves
D. sound waves
Answer:
|
A
|
sciq
|
What happens when water is removed from the endospore?
A. reversal
B. hibernation
C. suspension
D. its metabolism halts
Answer:
|
D
|
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|
What is the term for the intentional release or spread of agents of disease?
A. bioterrorism
B. plague
C. diversion
D. pandemic
Answer:
|
A
|
sciq
|
Two important types of waves include longitudinal waves and what other kind?
A. transverse
B. irregular
C. slow
D. phenomena
Answer:
|
A
|
sciq
|
The motion of stars in galaxies imply that there is about 10 times as much what as in the luminous objects we can see?
A. heat
B. light
C. mass
D. density
Answer:
|
C
|
sciq
|
Polymers, ceramics, adhesives, coatings, and liquid crystals are examples of materials recently discovered or developed by what type of scientists?
A. engineers
B. geologists
C. material scientists
D. chemists
Answer:
|
D
|
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|
What does the urethra do?
A. filters urine and makes sperm
B. makes sperm and evacuates bowels
C. stores sperm and urine
D. carries urine and sperm out of the body
Answer:
|
D
|
sciq
|
What is the term used to measure the intensity of sound waves?
A. decibel
B. phon
C. hertz
D. amplitude
Answer:
|
A
|
sciq
|
What can be thought of as the most biologically productive regions on earth?
A. forests
B. estuaries
C. coasts
D. swamps
Answer:
|
B
|
sciq
|
What is the scientific term for farsightedness?
A. micropsia
B. hypoxia
C. hyperopia
D. myopia
Answer:
|
C
|
sciq
|
During fetal development of the heart, what does the bulbus cordis develop into?
A. left atrium
B. last ventricle
C. right atrium
D. right ventricle
Answer:
|
D
|
sciq
|
A more crucial use of rc circuits for timing purposes is in the artificial pacemaker, used to control what?
A. blood pressure
B. breathing rate
C. iron levels
D. heart rate
Answer:
|
D
|
sciq
|
What causes earthquakes at mid-ocean ridges to be small and shallow?
A. plates are thin , young , and cold
B. plates are thick , old , and hot
C. plates are thick , young , and cold
D. plates are thin , young , and hot
Answer:
|
D
|
sciq
|
Most geological activity takes place where?
A. high altitudes
B. ocean floor
C. at plate boundaries
D. center of plates
Answer:
|
C
|
sciq
|
What do we call the amount of time it will take for half of the radioactive material to decay?
A. one half-life
B. one quarter-life
C. one partial-life
D. one full-life
Answer:
|
A
|
sciq
|
What are organisms that depend on other living things for food?
A. buyers
B. consumers
C. customers
D. products
Answer:
|
B
|
sciq
|
Which part of the nerve cell helps transmit nerve impulses?
A. dendrites
B. cell walls
C. synapses
D. long, threadlike extensions
Answer:
|
D
|
sciq
|
Mount kilimanjaro has ________ climates at the top and bottom?
A. similar
B. dangerous
C. rainy
D. different
Answer:
|
D
|
sciq
|
What physical process occurs when large chunks of food are broken down into smaller pieces?
A. peristalsis
B. swallowing
C. mechanical digestion
D. chemical digestion
Answer:
|
C
|
sciq
|
What is the term for the early growth and development of a plant embryo inside a seed?
A. fertilization
B. rumination
C. germination
D. secretion
Answer:
|
C
|
sciq
|
Elements are either metals, nonmetals, or what?
A. partial metals
B. reactive metals
C. unstable metals
D. semimetals
Answer:
|
D
|
sciq
|
Shield volcanoes often form along which locations?
A. divergent plate boundaries
B. convergent boundaries
C. tectonic plates
D. fault lines
Answer:
|
A
|
sciq
|
What is the study of the vital statistics of populations and how they change over time?
A. ethnography
B. sociology
C. anthropology
D. demography
Answer:
|
D
|
sciq
|
Compared to free-floating bacteria, bacteria in biofilms often show increased resistance to what?
A. antibiotics and detergents
B. acid and detergents
C. alcohol and detergents
D. acid and antibiotics
Answer:
|
A
|
sciq
|
What type of energy travels in waves across space as well as through matter?
A. kinetic energy
B. electromagnetic radiation
C. mechanical radiation
D. thermal energy
Answer:
|
B
|
sciq
|
If an elephant and a boy are falling towards the ground, who will land first?
A. neither will land
B. the elephant
C. both same time
D. the boy
Answer:
|
C
|
sciq
|
Designed to support the weight of the upper body when sitting and transfer this weight to the lower limbs when standing, what body structure consists of four bones: right and left hip bones, sacrum, and coccyx?
A. tissues
B. Chest
C. pelvis
D. lungs
Answer:
|
C
|
sciq
|
Of all the electromagnetic waves, which have the lowest frequencies?
A. ultraviolet rays
B. gamma rays
C. radio waves
D. X-rays
Answer:
|
C
|
sciq
|
What do you call reversible changes that do not change matter’s chemical makeup or chemical properties?
A. potential changes
B. physical changes
C. chemical changes
D. element changes
Answer:
|
B
|
sciq
|
Free atoms are spherical in shape, so the relative sizes of the elements can be compared by looking at each atom's atomic what?
A. weight
B. radius
C. angles
D. axis
Answer:
|
B
|
sciq
|
What types of energy is released during a chemical reaction?
A. heat, electricity, light
B. human, magnetic, electrical
C. magnetism, electricity, light
D. temperature , electricity , light
Answer:
|
A
|
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|
What is the most common type of organic compound?
A. carbohydrates
B. hydrocarbons
C. lipids
D. proteins
Answer:
|
A
|
sciq
|
Hormones, ions, and neurotransmitters are all types of what?
A. pathogens
B. chemical signals
C. proteins
D. nutrients
Answer:
|
B
|
sciq
|
What explains why water molecules tend to stick together?
A. covalent bonds
B. hydrogen bonds
C. helium bonds
D. mineral bonds
Answer:
|
B
|
sciq
|
The maturing follicle, containing a fluid-filled cavity, enlarges, forming a bulge near the surface of what?
A. the ovary
B. the abdomen
C. the vagina
D. the pelvis
Answer:
|
A
|
sciq
|
Storm surge is very high water located in the low pressure eye of what?
A. eruptions
B. tornados
C. earthquakes
D. hurricanes
Answer:
|
D
|
sciq
|
What is a waste product from fossil fuel burning?
A. co2 emissions
B. hydrogen gas
C. smog
D. oxidation
Answer:
|
A
|
sciq
|
Carbon dioxide is an example of a material that easily undergoes what?
A. sublimation
B. spontaneous mutation
C. amplification
D. decomposition
Answer:
|
A
|
sciq
|
What is the term for daily cycles of behavior, like the sleep-wake cycle?
A. circadian rhythms
B. variable rhythms
C. behavioral rhythms
D. daily rhythms
Answer:
|
A
|
sciq
|
What organ senses sound?
A. eyes
B. teeth
C. ear
D. brain
Answer:
|
C
|
sciq
|
The total energy assimilated by an ecosystem in a give period is known as what?
A. mean primary production
B. median primary production
C. gross primary production
D. size primary production
Answer:
|
C
|
sciq
|
Class bivalvia (“two shells”) includes clams, oysters, mussels, scallops, and these?
A. octopuss
B. grendels
C. geoducks
D. crabs
Answer:
|
C
|
sciq
|
When does a caldera form?
A. before an eruption
B. after an eruption
C. after a hurricane
D. when faults form
Answer:
|
B
|
sciq
|
The mass lost in mass defect has gone into energy called what?
A. kinetic energy
B. momentum
C. binding energy
D. enthalpy
Answer:
|
C
|
sciq
|
What is used for the fermentation process that makes beer, wine, and bread?
A. whey
B. barley
C. fungi
D. yeast
Answer:
|
D
|
sciq
|
Plant viruses can seriously disrupt crop growth and development, significantly affecting our what?
A. fuel supply
B. harvest supply
C. air supply
D. food supply
Answer:
|
D
|
sciq
|
In the past, biologists grouped living organisms into five kingdoms: animals, plants, fungi, protists, and what?
A. pathogens
B. lizards
C. bacteria
D. trees
Answer:
|
C
|
sciq
|
What kind of joints allow for a wide range of flexibility?
A. pivot
B. lever
C. ball and socket
D. anchor
Answer:
|
C
|
sciq
|
The human body wants to maintain equilibrium or balance, also known as what?
A. homeostasis
B. stability
C. perfection
D. heterostasis
Answer:
|
A
|
sciq
|
Natural gas, such as those burned by gas stoves, is composed mostly of this?
A. oxygen
B. carbon monoxide
C. methane
D. sulfur
Answer:
|
C
|
sciq
|
Which is the process through which leaves collect sunlight and make food?
A. richness
B. Greenhouse
C. compress
D. photosynthesis
Answer:
|
D
|
sciq
|
What model describes the structure of the plasma membrane as a mosaic of components?
A. fluid mosaic model
B. coolant mosaic model
C. sensors mosaic model
D. solid mosaic model
Answer:
|
A
|
sciq
|
The hot liquid rock on the surface is called what?
A. volcano
B. flow
C. Molten
D. lava
Answer:
|
D
|
sciq
|
The first consumption of breast milk or formula floods the newborn’s sterile gastrointestinal tract with beneficial what?
A. pathogens
B. disease
C. bacteria
D. oxygen
Answer:
|
C
|
sciq
|
Clouds are formed from what?
A. dust particles
B. ice crystals
C. water droplets
D. snow flakes
Answer:
|
C
|
sciq
|
After spermatids form, they move where to mature into sperm?
A. into the volaris
B. into the prostate
C. into the epididymis
D. into the vans deferens
Answer:
|
C
|
sciq
|
Matter can exist either as a pure substance or as a combination of what?
A. different substances
B. much substances
C. different vapors
D. Different Liquids
Answer:
|
A
|
sciq
|
What is the separation of compounds on the basis of their solubilities in a given solvent?
A. volatile crystallization
B. fractional mass
C. fractional crystallization
D. solvent law
Answer:
|
C
|
sciq
|
Triploblasts include a broad range of animals, from flatworms to arthropods to what?
A. cells
B. mammals
C. invertebrates
D. vertebrates
Answer:
|
D
|
sciq
|
What is the release of particles and/or energy from the nucleus of an atom described as?
A. momentum
B. radioactivity
C. temperature
D. kinetic energy
Answer:
|
B
|
sciq
|
Through which process do behaviors that improve fitness increase?
A. mutation
B. natural selection
C. succession
D. adaptation
Answer:
|
B
|
sciq
|
Enzymes - proteins which speed up what?
A. chemical reactions
B. physical reactions
C. liquid reactions
D. crystals reactions
Answer:
|
A
|
sciq
|
What do you call the sudden flow of mud down a slope because of gravity?
A. mudslide
B. mountainside
C. typhoon
D. rockflow
Answer:
|
A
|
sciq
|
What causes acid rain, ozone depletion, and global warming?
A. ozone layer
B. water pollution
C. air pollution
D. radiation
Answer:
|
C
|
sciq
|
The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by what?
A. albumen
B. amniotic membranes
C. hard shell
D. yolk
Answer:
|
B
|
sciq
|
The cells of what basic plant structure lack chloroplasts?
A. root
B. stem
C. leaf
D. ferns
Answer:
|
A
|
sciq
|
What muscle in the chest helps inflate and deflate the lungs?
A. diaphragm
B. pectoral
C. cartilage
D. heart
Answer:
|
A
|
sciq
|
Where in the lungs does gas exchange between the air and blood takes place?
A. alveoli
B. left lobe
C. ganglion
D. bronchial tube
Answer:
|
A
|
sciq
|
What are hollow cylinders and are the thickest of the cytoskeleton structures?
A. microtubules
B. cytoplasm
C. nucleotides
D. vesicles
Answer:
|
A
|
sciq
|
What simple sugar is the cell's primary source of energy?
A. chloride
B. nicotine
C. carbon
D. glucose
Answer:
|
D
|
sciq
|
What is the approximate population on the earth?
A. 7.3 billion
B. 41 billion
C. 7 billion
D. 9 trillion
Answer:
|
C
|
sciq
|
A change in the sequence of bases in dna or rna is called a what?
A. mutation
B. infection
C. isolation
D. accumulation
Answer:
|
A
|
sciq
|
What is the product of microfilament movement powered by chemical energy?
A. nerve stimulation
B. blood circulation
C. muscle fusion
D. muscle contraction
Answer:
|
D
|
sciq
|
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