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What is the wavelength of light expressed in?
A. vatts
B. millimeters
C. nanometers (nm)
D. nanoseconds
Answer: | C |
What is found inside the pores of spongy bone?
A. liquid marrow
B. bone marrow
C. green marrow
D. rupture marrow
Answer: | B |
The strength of an acid depends on how many of which ions it produces when it dissolves in water?
A. carbon
B. silicon
C. helium
D. hydrogen
Answer: | D |
How many oxygen ions make up an ozone molecule?
A. three
B. one
C. five
D. eight
Answer: | A |
While light travels at different speeds in different kinds of matter, the speed of light is constant in what condition?
A. under water
B. outer space
C. vacuum
D. through glass
Answer: | C |
What kind of solution might cause animal cells to burst?
A. monatomic
B. eutrophic
C. hypotonic
D. Acid Solution
Answer: | C |
Transition metals are superior conductors of heat as well as what else?
A. radiation
B. light
C. cold
D. electricity
Answer: | D |
Our digestive system breaks down starch to what?
A. Salts
B. simple sugars
C. Waste
D. pattern sugars
Answer: | B |
What happens to a tectonic plate when it subducts?
A. it sinks
B. it warms
C. it cracks
D. it melts
Answer: | D |
A monosaccharide is the simplest carbohydrate and cannot be hydrolyzed to produce a smaller what?
A. carbohydrate molecule
B. amino acid
C. glucose atom
D. quark
Answer: | A |
What is the term for if multiple sperm fuse with an egg?
A. fraternization
B. polyspermy
C. pollenation
D. in vitro fertilization
Answer: | B |
As air pressures inside and outside of the ear equalize, what phenomenon is produced?
A. throat scratching
B. eyes blinking
C. ear popping
D. heart skipping
Answer: | C |
How many pairs of chromosomes are there?
A. 2
B. 23
C. 13
D. 17
Answer: | B |
Food is broken into smaller particles by mastication, a process involving action by what structures?
A. tonsils
B. cilia
C. proteins
D. teeth
Answer: | D |
Cell communication that occurs over short distances is known as what?
A. cell echo
B. contraposition signaling
C. paracrine signaling
D. hypersignaling
Answer: | C |
Triggering a blink when something touches the surface of the eye, the corneal reflex is what type of reflex?
A. dendritic
B. sensory
C. orgasmic
D. somatic
Answer: | D |
Vascular disorders involve problems with the flow of what?
A. mucus
B. bacteria
C. saliva
D. blood
Answer: | D |
In eukaryotes, mrna may be modified before leaving what?
A. epidermis
B. ribosome
C. mitochondria
D. nucleus
Answer: | D |
Velocity affects what type of energy more than mass does?
A. harmonic energy
B. mechanical energy
C. kinetic energy
D. magnetic energy
Answer: | C |
In which way do vertebrates reproduce?
A. asexually
B. unisexually
C. sexually
D. bisexually
Answer: | C |
Neutrons and protons reside in which part of the atom?
A. vacuoles
B. nucleus
C. nucleolus
D. molecules
Answer: | B |
What are the two best known baryons?
A. protons and neutrons
B. flux and neurons
C. electrons and neutrons
D. shafts and neutrons
Answer: | A |
Mutation creates new genetic variation in what?
A. gene pool
B. disease pool
C. form pool
D. mutation pool
Answer: | A |
What hormone controls milk production in mammary glands?
A. pepsin
B. dopamine
C. prolactin
D. melanin
Answer: | C |
Cellular respiration brings hydrogen and oxygen together to form what?
A. Salt
B. water
C. cold
D. air
Answer: | B |
What are the two components of the autonomic nervous system?
A. crystallisation and sympathetic
B. parasympathetic and sympathetic
C. neurons and sympathetic
D. empathetic and sympathetic
Answer: | B |
Where do lancelets live?
A. deep sea caves
B. on land
C. shallow ocean water
D. riverbeds
Answer: | C |
What is caused when circulating blood puts pressure on the walls of blood vessels?
A. atherosclerosis
B. blood pressure
C. aneurysm
D. high cholesterol
Answer: | B |
What is the most common bacterial sti in the u. s.?
A. tuberculosis
B. chlamydia
C. influenza
D. diarrhea
Answer: | B |
In what unit is heat measured in?
A. thermals
B. amperes
C. velocities
D. joules
Answer: | D |
In which type of cells are most organelles not found?
A. eukaryotic cells
B. heterogeneous cells
C. prokaryotic cells
D. endoplasmic cells
Answer: | C |
Which three colors are called the primary colors of light?
A. black, white, red
B. blue, green, violet
C. red, green, blue
D. red, blue, yellow
Answer: | C |
Water dissolving minerals out of rocks makes ocean water what?
A. salty
B. muddy
C. sweet
D. bitter
Answer: | A |
Like the energy content in food, the energy expenditures of exercise are also reported in what units?
A. kilocalories
B. gigabytes
C. ironies
D. grams
Answer: | A |
What's the term for an allele that's always expressed over another?
A. recessive
B. mutated
C. prevalent
D. dominant
Answer: | D |
Series and parallel circuits are two basic types of what?
A. electric circuits
B. chemical circuits
C. mechanical circuits
D. mutual circuits
Answer: | A |
Transport of water and solutes in plants water potential is a measure of the difference in potential energy between a water sample and this?
A. green water
B. pure water
C. salty water
D. dirty water
Answer: | B |
Three distinct layers or tunics form the walls of what structures; the first is a smooth, inner lining of endothelial cells in contact with the red blood cells?
A. alveoli
B. white blood cells
C. lungs
D. blood vessels
Answer: | D |
Groundwater does what to the rock beneath the ground surface?
A. erodes it
B. boosts it
C. accelerates it
D. creates it
Answer: | A |
Technetium is named after the greektechnikos, meaning “artificial,” because all its isotopes are what?
A. rare
B. neutral
C. radioactive
D. plastic
Answer: | C |
What is a galvanic process that can be prevented using cathodic protection?
A. sublimation
B. vaporization
C. corrosion
D. explosion
Answer: | C |
What are drumlins, eskers, and kettle lakes formed by?
A. glaciers
B. earthquakes
C. meteors
D. tsunamis
Answer: | A |
What is the vector sum of all the torques acting on the object called?
A. total torque
B. gross torque
C. critical torque
D. net torque
Answer: | D |
An electric current flows in a path called what?
A. electric ring
B. fuse
C. electric course
D. electric circuit
Answer: | D |
What gas can be generated by reacting sodium bromide with elemental chlorine?
A. gaseous bromine gas
B. Molecular Bromine Gas
C. elemental bromine gas
D. photons bromine gas
Answer: | C |
What is a close relationship between two species in which at least one species benefits?
A. symbiosis
B. endosymbiosis
C. parasitism
D. morphogenesis
Answer: | A |
Over many generations, the resulting genetic diversity provides valuable raw material for what?
A. natural selection
B. characteristic selection
C. intelligent selection
D. coral selection
Answer: | A |
What pulls skydivers towards the earth?
A. inertia
B. gravity
C. momentum
D. impact
Answer: | B |
What occurs when a gas passes through an opening that is smaller than the mean free path of the particles?
A. effusion
B. dissipation
C. precipitation
D. malformation
Answer: | A |
What are the preserved remains of animals, plants, and other organisms called?
A. basalt
B. rocks
C. skulls
D. fossils
Answer: | D |
What group of elements cannot conduct electricity?
A. carbonates
B. nonmetals
C. metals
D. phosphates
Answer: | B |
What is the name of a tough, fibrous membrane which protects the outer layer of bone?
A. cartilage
B. marrow
C. the epithelium
D. the periosteum
Answer: | D |
Bond lengths are intermediate between covalent single bonds and what?
A. gravitational double bonds
B. wavefunction double bonds
C. covalent double bonds
D. trivalent bonds
Answer: | C |
Under a microscope, salt crystals are what shape?
A. circles
B. triangles
C. cubes
D. squares
Answer: | C |
Where part of the atmosphere is the uppermost mantle?
A. lithosphere
B. troposphere
C. thermosphere
D. isosphere
Answer: | A |
In a heat map, what color represents the hottest temperatures?
A. bright red
B. pink
C. orange
D. bright yellow
Answer: | D |
All living things require what, which most ecosystems obtain from the sun?
A. energy
B. oxygen
C. heat
D. water
Answer: | A |
Kelvin is a temperature measure in which the lowest temperature is what?
A. definitive zero
B. absolute zero
C. anomalous zero
D. accurate zero
Answer: | B |
The basic fabric of most biological membranes is a double layer of _________ and other lipids?
A. liquids
B. solids
C. phospholipids
D. antibodies
Answer: | C |
What is the name for the organs behind the head of a fish that absorb oxygen from water?
A. pores
B. lungs
C. alveoli
D. gills
Answer: | D |
What system gets less effective with age, that generally makes older people more disease susceptible?
A. reproductive system
B. nervous system
C. infectious system
D. immune system
Answer: | D |
Which type of tides are created when the sun and moon's tides match?
A. spring tides
B. Neap tides
C. low tides
D. weak tides
Answer: | A |
What is the process of creating an exact genetic replica of an organism called?
A. copying
B. reproducing
C. converting
D. cloning
Answer: | D |
An example of hydrolysis working within our bodies is the process of what?
A. absorption
B. digestion
C. breathing
D. filtration
Answer: | B |
What theory can explain virtually all the properties of metals?
A. formation theory
B. property law theory
C. band theory
D. bonding theory
Answer: | C |
Serious imbalances, cancer and other diseases can result when expression of what goes awry?
A. ribosomes
B. genes
C. proteins
D. gametes
Answer: | B |
Which organ's diseases include kidney stones, infections, and kidney failure due to diabetes?
A. lungs
B. pancreas
C. kidney
D. heart
Answer: | C |
What single-celled organism can be either a predator, decomposer, herbivore, or parasite in the food chain?
A. mites
B. vertebrates
C. protozoa
D. Diatoms
Answer: | C |
What layer, made of hot, solid rock, is beneath the earth's crust?
A. mantle
B. core
C. magma
D. marble
Answer: | A |
Some bacteria can contaminate food and cause what illness?
A. natural poisoning
B. bacterial poisoning
C. food poisoning
D. bacterial spoilage
Answer: | C |
The enzyme pepsin works only in the presence of what?
A. carbohydrates
B. oxygen
C. sodium
D. acid
Answer: | D |
What organisms known as decomposers break down wastes and dead organisms into smaller molecules?
A. trees
B. consumers
C. herbivores
D. bacteria
Answer: | D |
Both flukes and tapeworms are parasites with what kind of host?
A. insect
B. cells
C. trees
D. vertebrate
Answer: | D |
What is the transfer of information from rna to dna called?
A. reverse differentiation
B. reverse transcription
C. forward transcription
D. confront transcription
Answer: | B |
In science, anything that has mass and volume is considered what?
A. matter
B. an element
C. renewable
D. visible
Answer: | A |
Cells with different functions often differ in what physical property?
A. weight
B. density
C. shape
D. size
Answer: | C |
Wich disorder arises when defective valves allow blood to accumulate within the veins?
A. cataracts veins
B. bulging veins
C. vascular disease
D. varicose veins
Answer: | D |
Ocean water has what property because water dissolves minerals out of rocks?
A. salty
B. fizzy
C. sweet
D. muddy
Answer: | A |
What term refers to patterns of stars seen from earth?
A. astronomers
B. constellations
C. astrology
D. horoscope
Answer: | B |
What gives the plant cell strength and protection?
A. a cell wall
B. the protons
C. the genes
D. the cell nucleus
Answer: | A |
If pollination occurs, what does the zygote develop into?
A. a sperm
B. an egg
C. an embryo
D. an ovum
Answer: | C |
Hiv has proteins called what, internal to the envelope, which help stabilize virion shape?
A. reduction proteins
B. sphere proteins
C. matrix proteins
D. step proteins
Answer: | C |
What are two basic types of pollutants in the air?
A. pesticides and smog
B. smog and coal
C. primary and secondary pollutants
D. organic and inorganic
Answer: | C |
How do humans learn behaviors?
A. Verbal pressure
B. conditioning
C. pressure
D. Aural pressure
Answer: | B |
Just about all life processes depend on what?
A. carbon
B. water
C. air
D. meat
Answer: | B |
During labor, what do contractions of the muscular walls of the uterus cause?
A. spontaneous abortion
B. premature birth
C. excretion
D. cervical dilation
Answer: | D |
How is communication initiated and maintained with spacecraft?
A. radio waves
B. sonar
C. telegraph
D. wi-fi
Answer: | A |
Dna replication is the first step in what process for both eukaryotic and prokaryotic cells?
A. cell division
B. cell growth
C. cell transfer
D. cell death
Answer: | A |
The prostate is formed of both muscular and which other tissues?
A. nonvascular tissue
B. scar
C. glandular
D. cartilage tissue
Answer: | C |
A mammal that reproduces by laying eggs is called what?
A. mammal
B. monotreme
C. maidenhair
D. cactaceae
Answer: | B |
Adaptations that go along with the active, carnivorous lifestyle of sharks are known as?
A. acute senses
B. Relative traits
C. acute parameters
D. similar senses
Answer: | A |
What is considered to be the control center for homeostatic mechanisms?
A. thyroid
B. adrenal cortex
C. hypothalamus
D. hippocampus
Answer: | C |
What molecules with a nitrogen base are the basic components of nucleic acids?
A. nuclides
B. nucleiotides
C. sporozoans
D. enzymes
Answer: | B |
What were the first vertebrates to evolve?
A. trees
B. fish
C. snail
D. shark
Answer: | B |
What is defined as the rate of energy transferred?
A. pressure
B. power
C. capacity
D. charge
Answer: | B |
The cochlea and vestibul make up what part of the ear?
A. middle
B. inner
C. upper
D. outer
Answer: | B |
An individual with the appropriate number of what for their species is called euploid; abnormalities in this number include trisomy and monosomy?
A. chromosomes
B. genes
C. neutrons
D. ribosomes
Answer: | A |
A, t, g, and c pairs are associated with what substance that is important in genetics?
A. dna
B. plasma
C. blood
D. bacteria
Answer: | A |
What female flower structure, which is part of the pistil, receives the pollen grains and passes them to the ovary?
A. sepal
B. stigma
C. ovary
D. style
Answer: | B |
What is used by sensitive systems to detect even low levels of radiation?
A. radars
B. electrons
C. ions
D. crystals
Answer: | D |
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