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The job of the nucleolus is to build what?
A. ribosomes
B. chromosomes
C. electrons
D. cells
Answer:
|
A
|
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|
For many decades, scientists have known that atoms consist of electrons and other particles called protons and?
A. waves
B. nanoparticles
C. neutrons
D. rods
Answer:
|
C
|
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|
Patients with familial hypercholesterolemia have life-threatening levels of cholesterol because their cells cannot clear what particles from their blood?
A. low-density lipoprotein (ldl)
B. iron (Fe)
C. high - density lipoprotein (hdl)
D. oxygen (O)
Answer:
|
A
|
sciq
|
What action, performed multiple times daily, is the single biggest use of water in the home?
A. flushing the toilet
B. watering plants
C. washing clothes
D. taking showers
Answer:
|
A
|
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|
What is a form of mechanical energy that starts with a vibration in matter?
A. sound energy
B. electrical energy
C. industrial energy
D. solar energy
Answer:
|
A
|
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|
What's caused by damaged capillaries in the kidneys so the nephrons can no longer filter blood?
A. colon failure
B. bacteria failure
C. sponge failure
D. kidney failure
Answer:
|
D
|
sciq
|
What do roots bring in from the soil into the plant?
A. water and nutrients
B. dirt and minerals
C. hormones and fertilizer
D. pesticides and chlorophyll
Answer:
|
A
|
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|
In addition to spiral cleavage, protostomes also undergo which other form of cleavage?
A. determinate
B. diagonal
C. dispersive
D. straight
Answer:
|
A
|
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|
What term is used to describe animals with three germ layers?
A. triplegerm
B. triploblasts
C. multilayer
D. sporozoans
Answer:
|
B
|
sciq
|
Due to similar function, the wings of bats and birds are referred to as what type of structures?
A. Identical structures
B. analogous structures
C. symmetrical structures
D. matching structures
Answer:
|
B
|
sciq
|
If the amount of force of that is applied is increased, what happens to the work that a machine is producing?
A. it's variable
B. it is harder
C. it's unchanged
D. it is easier
Answer:
|
D
|
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|
What is the name for speed with a direction?
A. velocity
B. distance
C. acceleration
D. trajectory
Answer:
|
A
|
sciq
|
How many types of mechanical waves are there?
A. nine
B. three
C. one
D. five
Answer:
|
B
|
sciq
|
What is required for a decay chain to end?
A. stable half-life
B. unstable end-product
C. stable end-product
D. radioactive cascade
Answer:
|
C
|
sciq
|
What do you call the process that results in an animal producing offspring?
A. adoption
B. differentiation
C. reproduction
D. creationism
Answer:
|
C
|
sciq
|
What do voltmeters measure?
A. current drop across a resistor
B. voltage increase across a resistor
C. current increase across a resistor
D. voltage drop across a resistor
Answer:
|
D
|
sciq
|
Distinct from a suspension, a solution is considered what type of mixture?
A. gaseous
B. heterogeneous
C. homogeneous
D. continuous
Answer:
|
C
|
sciq
|
What is the largest and most complex algae
A. brown algae
B. strange algae
C. green algae
D. open algae
Answer:
|
A
|
sciq
|
Scientists around the world study speciation, documenting observations both of living organisms and those found in the fossil record. as their ideas take shape and as research reveals new details about how life evolves, they develop models to help explain what?
A. spontaneous mutation
B. food chains
C. rates of speciation
D. creation theory
Answer:
|
C
|
sciq
|
How long do the long-lived isotopes require to decay to a safe level in a nuclear reactor?
A. tens of years
B. hundreds of years
C. thousands of years
D. millions of years
Answer:
|
C
|
sciq
|
The production of light by living things is called what?
A. apoptosis
B. bioluminescence
C. attenuation
D. bio-glow
Answer:
|
B
|
sciq
|
Animals that live in groups with other members of their species are called what?
A. common animals
B. social animals
C. present animals
D. energetic animals
Answer:
|
B
|
sciq
|
Teeth in the back of the mouth are used for what?
A. cutting food
B. swallowing food
C. tearing food
D. grinding food
Answer:
|
D
|
sciq
|
Compared to red light, blue light has a shorter what?
A. gravity
B. wavelength
C. absorption
D. life span
Answer:
|
B
|
sciq
|
The most common substance on earth, water, is primarily present in what state?
A. liquid
B. solid
C. freshwater
D. gas
Answer:
|
A
|
sciq
|
What kind of respiration allows rapid production of atp in low oxygen situations?
A. anabolic
B. aerobic
C. anaerobic
D. enzymatic
Answer:
|
C
|
sciq
|
What two forces tend to keep an animal stationary and thus oppose locomotion?
A. thickness and gravity
B. workload and gravity
C. stength and gravity
D. friction and gravity
Answer:
|
D
|
sciq
|
What are membrane-bound organelles with their own dna called?
A. chromosomes
B. ribosomes
C. vacuoles
D. plastids
Answer:
|
D
|
sciq
|
What kind of atomic molecule is oxygen gas?
A. aromatic
B. symbiotic
C. dramatic
D. diatomic
Answer:
|
D
|
sciq
|
Why can't fungi make their own food like plants do?
A. no hydrogen
B. no chloroplasts
C. no cells
D. no organelles
Answer:
|
B
|
sciq
|
The vestibulocochlear nerve is responsible for the senses of hearing and what else?
A. awareness
B. sight
C. smell
D. balance
Answer:
|
D
|
sciq
|
What is an alloy of copper and tin?
A. bronze
B. zinc
C. silver
D. gold
Answer:
|
A
|
sciq
|
What spreads sti during sexual contact?
A. blood
B. parasites
C. pathogens
D. viruses
Answer:
|
C
|
sciq
|
How many amino acids are arranged like "beads on a string" to form proteins?
A. 20
B. 25
C. 15
D. 35
Answer:
|
A
|
sciq
|
What do refrigerator magnets contain that make them stick to a refrigerator door?
A. steel
B. copper
C. iron
D. zinc
Answer:
|
C
|
sciq
|
When does most amphibians' parenting end?
A. once eggs have been laid
B. never
C. after adolescence
D. once offspring reach adulthood
Answer:
|
A
|
sciq
|
What helps an insectivorous plant attract and digest insects?
A. spines
B. special seeds
C. specialized flowers
D. specialized leaves
Answer:
|
D
|
sciq
|
E. coli uses how many enzymes to take up and metabolize lactose?
A. 4
B. 3
C. 2
D. 11
Answer:
|
B
|
sciq
|
What forms as a result of decomposition when n2o is heated?
A. calcium and oxygen
B. ammonia and nitrogren
C. nitrogen and hydrogen
D. nitrogen and oxygen
Answer:
|
D
|
sciq
|
Biomass can also be processed to make what kind of fuel?
A. gasoline
B. biofuel
C. fossil
D. hydrogen fuel
Answer:
|
B
|
sciq
|
What is produced when an egg is fertilized by a sperm in a fallopian tube?
A. ovaries
B. fetus
C. uterus
D. zygote
Answer:
|
D
|
sciq
|
What structures receive blood from the atria and pump it out of the heart?
A. Vascular Fibers
B. valves
C. ventricles
D. muscles
Answer:
|
C
|
sciq
|
What are modified leaves that bear sporangia?
A. neutrophils
B. sporozoans
C. sporophylls
D. spines
Answer:
|
C
|
sciq
|
The reverse process of moving material into a cell is the process of what?
A. osmosis
B. exocytosis
C. endocytosis
D. proteolysis
Answer:
|
B
|
sciq
|
Constriction and dilation allow the circulatory system to change the amount of blood flowing to which body parts?
A. tissues
B. arteries
C. muscles
D. organs
Answer:
|
D
|
sciq
|
Focused on evolution, the studies of what man have reshaped and influenced all aspects of biology?
A. Albert Einstein
B. scopes
C. charles darwin
D. Linnaeus
Answer:
|
C
|
sciq
|
Are cnidarians typically found in ocean or fresh water habitats?
A. freshwater
B. ocean
C. lakes
D. rivers
Answer:
|
B
|
sciq
|
Increasing the pressure on a gas has what effect on its solubility?
A. decrease
B. increase
C. halt
D. slow
Answer:
|
B
|
sciq
|
What type of fertilization do most reptiles have?
A. spawning
B. internal
C. budding
D. external
Answer:
|
B
|
sciq
|
The vertebrate endoskeleton is made of bone and what tough, flexible tissue?
A. synovial tissue
B. collagen
C. cuticle
D. cartilage
Answer:
|
D
|
sciq
|
What has hot days and cool nights, and are typically covered with sand dunes or sparse but hardy plants?
A. rain forest
B. deserts
C. arctic
D. tundra
Answer:
|
B
|
sciq
|
In addition to insects, what large invertebrate phylum includes animals such as spiders, centipedes, and lobsters?
A. ostracods
B. fungi
C. arthropoda
D. onychophora
Answer:
|
C
|
sciq
|
Monatomic cations have the same name as their parent element. what happens to monatomic anions?
A. ends in - se
B. ends in - de
C. ends in - fe
D. ends in - be
Answer:
|
B
|
sciq
|
What part of the body do hookworms infest?
A. intestines
B. brain
C. skin
D. lungs
Answer:
|
A
|
sciq
|
Parasitic leeches feed off of what?
A. tumor
B. brain
C. blood
D. tissue
Answer:
|
C
|
sciq
|
The mars rover collected round clumps of crystals that, on earth, usually form in what?
A. rocks
B. air
C. water
D. volcanoes
Answer:
|
C
|
sciq
|
Attraction of a material by a magnet is an example of what type of property?
A. thermal
B. transitive
C. physical
D. chemical
Answer:
|
C
|
sciq
|
What phenomenon is essential in order for evolution to occur because it increases genetic variation and the potential for individuals to differ?
A. natural selection
B. replication
C. radiation
D. mutation
Answer:
|
D
|
sciq
|
The two types of glaciers are continental and what other kind?
A. macro
B. rolling
C. valley
D. micro
Answer:
|
C
|
sciq
|
In dioecious animals, females generally produce what contribution to reproduction?
A. warmth
B. intelligence
C. milk
D. eggs
Answer:
|
D
|
sciq
|
The cells of all protists have a what?
A. nucleus
B. protons
C. argon
D. cell walls
Answer:
|
A
|
sciq
|
What type of organism causes many common diseases such as strep throat and food-borne illnesses?
A. virus
B. prion
C. parasite
D. bacteria
Answer:
|
D
|
sciq
|
What type of current do generators in cars use?
A. alternating current
B. magnum current
C. direct current
D. polar current
Answer:
|
A
|
sciq
|
What is the movement of plates called?
A. volcanic activity
B. plate tectonics
C. migration
D. fracking
Answer:
|
B
|
sciq
|
Name a carbonyl in which the carbon atom is bonded to one carbon atom and one hydrogen atom (or two hydrogen atoms).
A. ketone
B. ester
C. aldehyde
D. acetylcholine
Answer:
|
C
|
sciq
|
The color of an object is determined by the what of it's reflected light?
A. wavelength
B. absorption
C. variation
D. luminosity
Answer:
|
A
|
sciq
|
The process in which dna is copied is called what?
A. dna replication
B. dna duplication
C. dna splicing
D. dna transfer
Answer:
|
A
|
sciq
|
What type of seismic waves do the most damage?
A. gravity
B. tension
C. sunlight
D. surface
Answer:
|
D
|
sciq
|
Which continent is the only one that reptiles don't inhabit?
A. Africa
B. antartica
C. Europe
D. South America
Answer:
|
B
|
sciq
|
What is responsible for the foul smell of rancid butt?
A. affixed acid
B. Fatty Acid
C. butyric acid
D. ibogaine acid
Answer:
|
C
|
sciq
|
The carbon cycle can be thought of in terms of two interdependent cycles - cellular respiration and what else?
A. spermatogenesis
B. pollination
C. photosynthesis
D. glycolysis
Answer:
|
C
|
sciq
|
What is the term for the green pigment in leaves that captures energy from the sun?
A. chlorophyll
B. verdye
C. ammonia
D. carbonate
Answer:
|
A
|
sciq
|
Evolutionary adaptation is evidenced by different shapes of what structures in birds with different food preferences?
A. Stomach
B. claws
C. necks
D. beaks
Answer:
|
D
|
sciq
|
Amino acids contain both a carboxylic acid group and what other group?
A. lipid
B. compounds
C. amine
D. fatty
Answer:
|
C
|
sciq
|
What is an alloy of both tin and copper?
A. silver
B. Cobalt
C. Aluminium
D. bronze
Answer:
|
D
|
sciq
|
What is the option to remove kidney stones other than surgery?
A. pump treatments
B. skin treatments
C. ultrasound treatments
D. glandular treatments
Answer:
|
C
|
sciq
|
What does a theory need to be supported by?
A. scientists
B. many observations
C. facts
D. peer reviewed journals
Answer:
|
B
|
sciq
|
What happens when antibodies are transferred to a person who has never been exposed to the pathogen?
A. acquired immunity
B. allergic reaction
C. passive immunity
D. active disease
Answer:
|
C
|
sciq
|
What is the name for electrons closer to the nucleus that do not participate in bonding?
A. radical electrons
B. core electrons
C. odd electrons
D. surface electrons
Answer:
|
B
|
sciq
|
Which acid releases nitrates into soil?
A. sulfuric
B. citric
C. uric
D. lactic
Answer:
|
C
|
sciq
|
What instrument made it possible to study pressure quantitatively?
A. thermometer
B. barometer
C. seismograph
D. anemometer
Answer:
|
B
|
sciq
|
What asymmetrical organ has four chambers and, in humans, is about the size of a clenched fist?
A. liver
B. kidney
C. heart
D. brain
Answer:
|
C
|
sciq
|
Geiger counters can be used to detect what, in general?
A. seismic load
B. radiation
C. convection
D. evaporation
Answer:
|
B
|
sciq
|
What term is used to describe the energy of matter in motion?
A. kinetic energy
B. gravitational energy
C. frictional energy
D. emotional energy
Answer:
|
A
|
sciq
|
What do you call the illness that occurs when harmful bacteria enter the digestive system in food?
A. nutrition poisoning
B. meat poisoning
C. bacteria poisoning
D. food poisoning
Answer:
|
D
|
sciq
|
Herbivores and omnivores have longer alimentary canals compared to what?
A. mammals
B. arthropods
C. carnivores
D. centipedes
Answer:
|
C
|
sciq
|
What do tadpoles turn into?
A. frogs
B. insects
C. fish
D. snakes
Answer:
|
A
|
sciq
|
The heat capacity of an object depends on its chemical composition and what other property?
A. weight
B. volume
C. mass
D. concentrations
Answer:
|
C
|
sciq
|
Human skin color is primarily due to the presence of what pigment in the skin?
A. melatonin
B. tannin
C. melanin
D. cytoplasm
Answer:
|
C
|
sciq
|
What is pollution that enters water at just one point called?
A. point supply pollution
B. point source pollution
C. entry point pollution
D. point supply pollution
Answer:
|
B
|
sciq
|
The various sensory organs are part of what organ system?
A. respiratory
B. digestive
C. nervous
D. lymphatic
Answer:
|
C
|
sciq
|
Down syndrome is caused by having three copies of what, a condition known as trisomy?
A. DNA
B. variation
C. genome
D. chromosome
Answer:
|
D
|
sciq
|
What kind of weathering changes the size of a mineral or rock but does not change its chemical composition?
A. molecular weathering
B. mechanical weathering
C. radiation
D. chemical reaction
Answer:
|
B
|
sciq
|
What do waves do when they are unable to pass through an object?
A. Roll over.
B. produce off
C. reflect off
D. develop off
Answer:
|
C
|
sciq
|
What is used to date older fossils?
A. electron microscopes
B. search engines
C. litmus testing
D. radioactive isotopes
Answer:
|
D
|
sciq
|
What external feature in human beings is responsible for balance?
A. brain
B. hands
C. tails
D. ears
Answer:
|
D
|
sciq
|
What branch of science is the study of human origins?
A. paleoanthropology
B. palaeobiology
C. pharmacology
D. biology
Answer:
|
A
|
sciq
|
Skeletal muscle cells and cardiac muscle cells share what property, which is not shared by smooth muscle cells?
A. overlap
B. filaments
C. surfaces
D. striations
Answer:
|
D
|
sciq
|
Latitude affects the amount of what received by an area, which in turn affects the temperature of a region?
A. current radiation
B. chemical radiation
C. solar radiation
D. geothermal radiation
Answer:
|
C
|
sciq
|
What do you call an abnormal mass formed when cells divide uncontrollably?
A. infection.
B. tumor
C. inflammation
D. layer
Answer:
|
B
|
sciq
|
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