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