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null | Question: Breathing involves differences in what, measured in torr, between the inside of the lungs and the air outside?
Options:
A. pressure
B. gravity
C. temperature
D. resistance
Answer: | A |
null | Question: Called the powerhouses of the cell, what organelles are the site of cellular energy production?
Options:
A. mitochondria
B. nucleus
C. mitosis
D. cell wall
Answer: | A |
null | Question: What element is all life built around?
Options:
A. oxygen
B. neon
C. carbon
D. hydrogen
Answer: | C |
null | Question: Where is food stored?
Options:
A. the stomach
B. The esophagus
C. The gall bladder
D. The liver
Answer: | A |
null | Question: The modern atomic theory states that all matter is composed of what?
Options:
A. molecules
B. quarks
C. atoms
D. ions
Answer: | C |
null | Question: How quickly a population changes in size over time is known as what?
Options:
A. population multiplication rate
B. population impact rate
C. population growth rate
D. population direction rate
Answer: | C |
null | Question: When referring to genes, what term describes the property of having multiple phenotypic effects?
Options:
A. xerophyte
B. prototype
C. archetype
D. pleiotrophy
Answer: | D |
null | Question: A membrane has what property if it can control what molecules or ions enter or leave the cell?
Options:
A. impermeability
B. susceptible permeability
C. indiscreet permeability
D. selective permeability
Answer: | D |
null | Question: What is required for both the synthesis and breakdown of molecules?
Options:
A. heating
B. energy
C. mixing
D. sunlight
Answer: | B |
null | Question: From the uterus, where do sperm travel next?
Options:
A. fallopian tubes
B. urinary tract
C. vagina
D. ovaries
Answer: | A |
null | Question: Labor is the muscular contractions to expel the fetus and placenta from where?
Options:
A. anus
B. uterus
C. tumors
D. lungs
Answer: | B |
null | Question: Carbon behaves as a metal because it conducts which two things well?
Options:
A. heat and water
B. heat and electricity
C. electricity and oxygen
D. heat and magnetism
Answer: | B |
null | Question: What substances that primarily comprise plasma membranes form a bilayer?
Options:
A. steroids
B. amino acids
C. enzymes
D. phospholipids
Answer: | D |
null | Question: The golgi removes some sugar monomers and substitutes others, producing a large variety of what?
Options:
A. fats
B. carbohydrates
C. proteins
D. electrolytes
Answer: | B |
null | Question: Where do plants take in air?
Options:
A. their leaves
B. their flowers
C. their stems
D. their roots
Answer: | A |
null | Question: Gymnamoebas constitute a large and varied group of what?
Options:
A. sporozoans
B. cells
C. amoebozoans
D. newborns
Answer: | C |
null | Question: Water molds are commonly found in moist soil and where else?
Options:
A. standing water
B. methane water
C. crust water
D. surface water
Answer: | D |
null | Question: Most terrestrial vertebrates have what type of lungs?
Options:
A. internal
B. extra
C. external
D. mechanical
Answer: | A |
null | Question: What are non-renewable sources of energy that produce environmental damage?
Options:
A. sunlight
B. crop fuels
C. fossil fuels
D. wind
Answer: | C |
null | Question: What term is used to describe the development of new technology?
Options:
A. technological design
B. Smart Design
C. evident design
D. variation design
Answer: | A |
null | Question: What part of blood releases clotting factors?
Options:
A. white blood cells
B. erythrocytes
C. platelets
D. hemoglobin
Answer: | C |
null | Question: What happens to energy in a closed system?
Options:
A. is replicated
B. is wasted
C. is destroyed
D. is conserved
Answer: | D |
null | Question: Greater reflection off what atmospheric layer allows am radio waves to travel even farther at night than they can during the day?
Options:
A. exosphere
B. troposphere
C. ionosphere
D. stratosphere
Answer: | C |
null | Question: Solid bedrock vibrates less and therefore does less of what to bedrock?
Options:
A. damage
B. dampen
C. block
D. butress
Answer: | A |
null | Question: What sequence is the primary structure of a protein?
Options:
A. processed acid sequence
B. nucleic acid sequence
C. proteins acid sequence
D. amino acid sequence
Answer: | D |
null | Question: What are the nonliving matter that living things need called?
Options:
A. nutrients
B. acids
C. elements
D. fluids
Answer: | A |
null | Question: What term describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell?
Options:
A. endocytosis
B. plasmosis
C. exocytosis
D. biosynthesis
Answer: | C |
null | Question: The scientific method is a method of research with defined steps that include experiments and careful what?
Options:
A. observation
B. estimation
C. consideration
D. discovery
Answer: | A |
null | Question: What releases fatty acids and other components from fats and phospholipids?
Options:
A. enzymatic hydrolysis
B. peristaltic hydrolysis
C. metabolism
D. enzyme respiration
Answer: | A |
null | Question: When thinking of the rate at which two gases mix, it is inverse proportional to the density of what?
Options:
A. matter
B. gas
C. dioxide
D. the container
Answer: | B |
null | Question: What carry messages from our sensory organs and others to the central nervous system?
Options:
A. valves
B. fibers
C. blood vessels
D. nerves
Answer: | D |
null | Question: What period starts after the baby is born, and the placenta is expelled from the body?
Options:
A. postpartum
B. postfetal
C. traumatic
D. fetal
Answer: | A |
null | Question: Asthma affects what tiny branches into which the bronchi are divided?
Options:
A. platelets
B. cilia
C. bronchioles
D. macrophages
Answer: | C |
null | Question: Where are protons found in the atom?
Options:
A. in the orbital
B. within electrons
C. in the nucleus
D. outside the nucleus
Answer: | C |
null | Question: What do you call the angle at which waves strike a wall?
Options:
A. angle of impact
B. incidence impact
C. rotation of incidence
D. angle of incidence
Answer: | D |
null | Question: Temporal and spatial summation at the axon hillock determines whether a neuron generates what?
Options:
A. false potential
B. change potential
C. hidden potential
D. action potential
Answer: | D |
null | Question: Refracting and reflecting telescopes are optical telescopes that use lenses to gather what?
Options:
A. magnetic force
B. sound
C. electricity
D. light
Answer: | D |
null | Question: What are surface currents mainly caused by?
Options:
A. waves
B. lightning
C. rains
D. winds
Answer: | D |
null | Question: Scientists use the principles of what to make predictions, which they then test?
Options:
A. their guesses
B. their hypothesis
C. their faith
D. their teachers
Answer: | B |
null | Question: Lead shielding is used to block what type of rays?
Options:
A. gamma
B. toxic
C. ultraviolet
D. alpha
Answer: | A |
null | Question: Of course, a net external force is needed to cause any acceleration, just as newton proposed in his second law of what?
Options:
A. motion
B. speed
C. gravity
D. land
Answer: | A |
null | Question: What is a copy of an object that is formed by reflected light?
Options:
A. instance
B. example
C. image
D. deflection
Answer: | C |
null | Question: What type of carbon compound is methane?
Options:
A. stable compounds
B. volatile organic compounds
C. dynamic organic compounds
D. alternating compounds
Answer: | B |
null | Question: Gram-positive and gram-negative bacteria are distinguished by thickness of what?
Options:
A. cell length
B. cell weight
C. cell wall
D. cell membrane
Answer: | C |
null | Question: What do cells produce as they age?
Options:
A. proto-oncogenes
B. carcinogens
C. oxidants
D. wrinkles
Answer: | A |
null | Question: What is earth's main source of energy?
Options:
A. the sun
B. the moon
C. the core
D. the atmosphere
Answer: | A |
null | Question: What is the name for a combination of elements that acts as a different substance?
Options:
A. compound
B. contrast
C. solution
D. mixture
Answer: | A |
null | Question: What kind of compounds contain positively and negatively charged ions in a ratio that results in an overall charge of zero?
Options:
A. ionic compounds
B. zeronic ions
C. zero charged compunds
D. neutral compounds
Answer: | A |
null | Question: In a dehydration reaction, what is removed as two monomers are joined together?
Options:
A. air
B. nitrogen
C. water
D. carbon
Answer: | C |
null | Question: Single bonds allow the atoms they join to rotate freely about the what?
Options:
A. electron shell
B. nucleus
C. bond axis
D. atomic orbit
Answer: | C |
null | Question: Simple eyes, like the human eye, have how many lenses?
Options:
A. one
B. four
C. two
D. none
Answer: | A |
null | Question: What are often formed biologically during the breakdown of proteins in animal cells, having the smell of death and decay?.
Options:
A. amines
B. acids
C. ketones
D. enzymes
Answer: | A |
null | Question: In what type of reproduction do parents of different sexes mate to produce offspring?
Options:
A. subject reproduction
B. sexual reproduction
C. dual reproduction
D. parallel reproduction
Answer: | B |
null | Question: What type of bond generally forms between a metal and non-metal?
Options:
A. unbreakable
B. horizontal
C. ionic
D. soluble
Answer: | C |
null | Question: What forms a ketone when oxidized?
Options:
A. secondary alcohol
B. enzyme
C. aldehyde
D. carbolic acid
Answer: | A |
null | Question: What body part does encephalitis attack?
Options:
A. heart
B. brain
C. lungs
D. liver
Answer: | B |
null | Question: Melting ice cubes and freezing water are examples of change of what?
Options:
A. role
B. role
C. volume
D. state
Answer: | D |
null | Question: What state of hydrogen can be predicted based on the atoms to which it is bonded?
Options:
A. condensation
B. oxidation
C. evaporation
D. precipitation
Answer: | B |
null | Question: Glass, rubber, and plastics are examples of which type of solids?
Options:
A. dubious
B. amorphous
C. porous
D. aqueous
Answer: | B |
null | Question: Momentum is a vector quantity that has the same direction as what?
Options:
A. inertia
B. object ' s velocity
C. object energy
D. initial speed
Answer: | B |
null | Question: Cilia or flagella structures give protists what ability?
Options:
A. movement
B. reproduction
C. eating
D. breathing
Answer: | A |
null | Question: Animals that are endotherms or ectotherms are distinguished by the ability to maintain a constant what?
Options:
A. bearing temperature
B. Moving Tempature
C. body temperature
D. step temperature
Answer: | C |
null | Question: Unlike archaea and eukaryotes, bacteria have a cell wall made of what?
Options:
A. peptidoglycan
B. phospholipids
C. hydrogen
D. substrates
Answer: | A |
null | Question: What type of protein fibers in the cytoskeleton are the narrowest?
Options:
A. microfilaments
B. macrophages
C. capillaries
D. mitosis
Answer: | A |
null | Question: Species that have diverged from their common ancestors have greater differences in what?
Options:
A. life span
B. dna sequence
C. cell structure
D. immunology
Answer: | B |
null | Question: The flood of sodium ions through the symporter provides the energy that allows what to move through the symporter and into the cell?
Options:
A. glucose
B. insulin
C. mitochondria
D. sucrose
Answer: | A |
null | Question: What must be overcome to change the motion of an object?
Options:
A. pressure
B. density
C. inertia
D. weight
Answer: | C |
null | Question: What is an organism that spreads bacteria or other pathogens?
Options:
A. section
B. vector
C. plane
D. arc
Answer: | B |
null | Question: In order to create food, what do photosynthetic protists use?
Options:
A. hydrocarbons
B. thermal energy
C. decayed matter
D. light energy
Answer: | D |
null | Question: Quarks also have a different type of charge, called what?
Options:
A. pure charge
B. contrast charge
C. color charge
D. spontaneous charge
Answer: | C |
null | Question: The oxygen atom in a water molecule pull the electrons away from the hydrogen atoms which leads to an unequal distribution of what?
Options:
A. atomic mass
B. orbits
C. nitrogen
D. charge
Answer: | D |
null | Question: What is the name of the muscular tube that carries urine out of the body?
Options:
A. rectum
B. uterus
C. urethra
D. bladder
Answer: | C |
null | Question: What is the principal cell of connective tissues?
Options:
A. organism
B. neural
C. Cancer
D. fibroblast
Answer: | D |
null | Question: A major step in animal evolution was the evolution of what rigid rod that runs the length of the body?
Options:
A. mitochondria
B. notochord
C. limbic system
D. endoderm
Answer: | B |
null | Question: What relatively new addition to and highest level of the system of taxonomic classification includes just three divisions, the eukarya, the archaea, and the bacteria?
Options:
A. domain
B. content
C. element
D. branch
Answer: | A |
null | Question: What are the bones in partly movable joints held in place by?
Options:
A. collagen
B. cartilage
C. tendons
D. socket
Answer: | B |
null | Question: Comparing what sequences provides clues to evolution and development?
Options:
A. DNA
B. genes
C. genome
D. organisms
Answer: | C |
null | Question: What phenomenon sometimes causes harmful alleles to become fixed?
Options:
A. natural selection
B. competition
C. spontaneous mutation
D. genetic drift
Answer: | D |
null | Question: Lactic acid fermentation is common in muscle cells that have run out of what?
Options:
A. oxygen
B. nitrogen
C. carbon
D. helium
Answer: | A |
null | Question: Hybrid orbitals are formed only in which type of bonded atoms?
Options:
A. thermally
B. covalently
C. partially
D. ionically
Answer: | B |
null | Question: Where is glucose carried in the human body?
Options:
A. the brain
B. the heart
C. the blood
D. the liver
Answer: | C |
null | Question: Life itself could not exist without what energy, which plays a vital role in photosynthesis?
Options:
A. spin energy
B. time energy
C. light energy
D. magnetic energy
Answer: | C |
null | Question: What broad category of animals shows adaptations from water-dwelling to land-dweller, including the ability to breathe air and legs to move on land?
Options:
A. birds
B. herbivores
C. reptiles
D. amphibians
Answer: | D |
null | Question: What is the name of earth’s only natural satellite?
Options:
A. titan
B. moon
C. venus
D. sun
Answer: | B |
null | Question: What is the last step in a scientific investigation?
Options:
A. verifying findings
B. retesting findings
C. documenting findings
D. communicating findings
Answer: | D |
null | Question: Cells may enter a period of rest known as what?
Options:
A. stationary phase
B. interkinesis
C. respiration
D. anaphase
Answer: | B |
null | Question: A light bulb converts electrical energy to light and what?
Options:
A. visible energy
B. chemical energy
C. kinetic energy
D. thermal energy
Answer: | D |
null | Question: During sexual reproduction, the macronucleus dissolves and is replaced by what?
Options:
A. chromosomes
B. micronucleus
C. sporozoans
D. fluctuations
Answer: | B |
null | Question: What is a double membrane of the nucleus that encloses the genetic material?
Options:
A. nuclear wall
B. cell wall
C. nuclear enevelope
D. cell membrane
Answer: | C |
null | Question: Ionic compound atoms of various elements gain or lose electrons to?
Options:
A. become ions
B. expel ions
C. flatten ions
D. produce ions
Answer: | D |
null | Question: How can people access water in an aquifer that does not flow from a spring or a geyser?
Options:
A. generate electricity
B. evaporation
C. mound building
D. dig a well
Answer: | D |
null | Question: What consists mainly of parenchymal cells with chloroplasts?
Options:
A. mitochondria
B. chlorophyll
C. mesophyll
D. periosteum
Answer: | C |
null | Question: Land plants are classified into two major groups according to the absence or presence of what tissue?
Options:
A. vascular
B. disease
C. root
D. bacterial
Answer: | A |
null | Question: What is an organic compound made up of small molecules called amino acids called?
Options:
A. a fat
B. a protein
C. a compound
D. a carbohydrate
Answer: | B |
null | Question: What kind of power plant uses energy to heat water that becomes steam and spins turbines?
Options:
A. coal
B. wind
C. hydroelectric
D. nuclear power plants
Answer: | D |
null | Question: The amniotic egg first evolved in what species?
Options:
A. birds
B. mammals
C. amphibians
D. reptiles
Answer: | D |
null | Question: What science includes many fields of science related to our home planet?
Options:
A. biology
B. earth science
C. meteorology
D. zoology
Answer: | B |
null | Question: What is it called when sound is reflected off an object?
Options:
A. amplification
B. reverberation
C. echo
D. signal
Answer: | C |
null | Question: In mammals what does the zona pellucida protect?
Options:
A. egg
B. fetus
C. testes
D. sperm
Answer: | A |
null | Question: Under a microscope, salt crystals are what shape?
Options:
A. circles
B. squares
C. triangles
D. cubes
Answer: | D |
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