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null | Question: What type of cells detect stimuli?
Options:
A. sensory nerve cells
B. muscle cells
C. grid nerve cells
D. expressive nerve cells
Answer: | A |
null | Question: Bivalvia and gastropoda are classes of what phylum?
Options:
A. fishes
B. diatoms
C. mollusks
D. Insects
Answer: | C |
null | Question: The existence of the plasma membrane was identified in the 1890s, and its chemical components were identified in 1915. the principal components identified at that time were these?
Options:
A. carbohydrates and proteins
B. lipids and proteins
C. gasses and proteins
D. lipids and carbohydrates
Answer: | B |
null | Question: What's it called when the reaction is sped up until equilibrium is established?
Options:
A. favoring
B. division
C. pushing
D. limiting
Answer: | A |
null | Question: What sort of gas is found in balloons and blimps, and is used to make them float in the sky?
Options:
A. oxygen
B. radon
C. helium
D. hydrogen
Answer: | C |
null | Question: What is the term for a process that changes some chemical substances into others?
Options:
A. chemical reaction
B. toxic reaction
C. chain reaction
D. acid reaction
Answer: | A |
null | Question: Air flows into the lungs largely due to a difference in what?
Options:
A. thrust
B. pressure
C. resistance
D. gravity
Answer: | B |
null | Question: Many disciplines within the study of biology contribute to understanding how past and present life evolved over time; these disciplines together contribute to building, updating, and maintaining this?
Options:
A. amount of life
B. tree of life
C. root of life
D. forests of life
Answer: | B |
null | Question: According to count rumford, which two are equivalent ways of transferring energy?
Options:
A. heat and work
B. addition and multiplication
C. time and space
D. osmosis and heredity
Answer: | A |
null | Question: What are the two methods in which mutations arise in dna?
Options:
A. accelerated or random
B. induced or spontaneous
C. produced or spontaneous
D. accelerated or spontaneous
Answer: | B |
null | Question: The planet neptune has strange dark spots that sometimes appear on its surface? what are these spots?
Options:
A. earthquakes
B. seas
C. black holes
D. storms
Answer: | D |
null | Question: Each new horizontal row of the periodic table corresponds to the beginning of a new period because a new principal energy level is being filled with what?
Options:
A. electrons
B. neutrons
C. protons
D. photons
Answer: | A |
null | Question: The rate of flow of charge in an electrical circuit is known as what?
Options:
A. velocity
B. output
C. voltage
D. current
Answer: | D |
null | Question: Water is used by the plant to move materials up from the roots to make what?
Options:
A. light
B. fruit
C. food
D. chlorophyll
Answer: | C |
null | Question: What process brings nutrients from the ocean's floor to its surface?
Options:
A. upwelling
B. Tides
C. Down welling
D. coastal swell
Answer: | A |
null | Question: What is the term for when a substance boils and changes to gas?
Options:
A. reaction point
B. changing point
C. activation point
D. boiling point
Answer: | D |
null | Question: An electric stove changes electric current to what form of energy?
Options:
A. thermodynamic
B. nuclear
C. kinetic
D. thermal
Answer: | D |
null | Question: Asci are used by mycelia for what kind of reproduction?
Options:
A. sexual
B. mitosis
C. cloning
D. asexual reproduction
Answer: | A |
null | Question: What do earth and the other planets in the solar system make around the sun?
Options:
A. smooth orbits
B. elevated orbits
C. elliptical orbits
D. radial orbits
Answer: | C |
null | Question: What happens to the pressure when more gas is added to a rigid container?
Options:
A. changes
B. increases
C. Higher
D. occurs
Answer: | B |
null | Question: The large hadron collider is the biggest type of what invention, which boosts particles to high energies?
Options:
A. electron microscope
B. mass spectrometer
C. nuclear reactor
D. particle accelerator
Answer: | D |
null | Question: Fertilization is the union of a sperm and egg, resulting in the formation of what?
Options:
A. a cytoplasm
B. a zygote
C. a nuclei
D. a bacteriophage
Answer: | B |
null | Question: Which acids provide the molecular blueprints for all proteins produced in living systems?
Options:
A. amino acids
B. nitrous acids
C. periodic acids
D. nucleic acids
Answer: | D |
null | Question: What corrosive substances capable of dissolving many metals can cause contamination if spilled?
Options:
A. salts
B. bases
C. acids
D. ions
Answer: | C |
null | Question: What is the midpiece of sperm packed with?
Options:
A. urine
B. protein
C. glucose
D. mitochondria
Answer: | D |
null | Question: Most mammals are viviparous, which refers to what reproductive result?
Options:
A. live birth
B. laying eggs
C. identical twins
D. spawning
Answer: | A |
null | Question: A desmosome is a cell structure that anchors the ends of what fibers together?
Options:
A. smooth muscle
B. cardiac muscle
C. controllable muscle
D. skeletal muscle
Answer: | B |
null | Question: Some plants can produce seeds without fertilization and this method of reproduction is known as what?
Options:
A. gametes
B. amoebas
C. Density
D. apomixis
Answer: | D |
null | Question: What happens do the sound during a resonance?
Options:
A. it becomes quieter
B. it dissipates
C. it echoes
D. amplified, it becomes louder
Answer: | D |
null | Question: The nervous system is made up of these?
Options:
A. blood cells
B. muscles
C. fibers
D. neurons
Answer: | D |
null | Question: What is the second largest planet in the solar system?
Options:
A. Venus
B. Mars
C. saturn
D. jupiter
Answer: | C |
null | Question: The force of attraction between a positively charged metal ion and the valence electrons it shares with other ions of the metal is called?
Options:
A. metallic yield
B. ionic bond
C. metallic bond
D. temporal bond
Answer: | C |
null | Question: Aquatic biomes are determined mainly by distance from shore and what other factor?
Options:
A. water temperature
B. salinity
C. depth of water
D. species populations
Answer: | C |
null | Question: What type of power is generated using a nonrenewable resource?
Options:
A. solar power
B. water power
C. wind power
D. nuclear power
Answer: | D |
null | Question: Triceps and biceps muscles in the upper arm are an example of what type of muscle relationship?
Options:
A. opposing
B. competitive
C. symbiotic
D. synchronized
Answer: | A |
null | Question: How much can the bacteria in your gut weigh?
Options:
A. 2.2 pounds
B. 2 pounds
C. 2 kilograms
D. 2.15 pounds
Answer: | B |
null | Question: What kind of feeders are sponges?
Options:
A. surface feeders
B. primary feeders
C. filter feeders
D. bottom feeders
Answer: | C |
null | Question: The fossil record indicates that anthropoids began diverging from other primates about how many million years ago?
Options:
A. 50
B. 40
C. 60
D. 70
Answer: | A |
null | Question: Associated with hair follicles, what type of oil gland is found all over the body and helps to lubricate and waterproof the skin and hair?
Options:
A. sweat gland
B. gametes gland
C. melanin gland
D. sebaceous gland
Answer: | D |
null | Question: What kind of light ranges from red to violet?
Options:
A. visible light
B. infrared light
C. ultraviolet light
D. x rays
Answer: | A |
null | Question: The elements in group 2 are called what?
Options:
A. metal alloys
B. halogens
C. noble gases
D. alkaline earth metals
Answer: | D |
null | Question: What chemical reaction is the opposite of oxidation?
Options:
A. reduction
B. condensation
C. mutation
D. evaporation
Answer: | A |
null | Question: Inorganic chemical compounds can be broadly classified into two groups: ionic compounds and which other group?
Options:
A. electromagnetic compounds
B. atomic compounds
C. cellular compounds
D. molecular compounds
Answer: | D |
null | Question: Branchiopoda are mostly small, freshwater animals that feed on?
Options:
A. algae and plankton
B. fishery and detritus
C. plankton and detritus
D. nutrient and detritus
Answer: | C |
null | Question: What is the part of the shadow that is partially lit called?
Options:
A. penumbra
B. eclipse
C. pleura
D. pentila
Answer: | A |
null | Question: Illustrating how form follows function, long, slender protein strands that make up what tissue are essential for contracting and relaxing?
Options:
A. muscle
B. tendons
C. veins
D. ligaments
Answer: | A |
null | Question: In the case of transverse waves, the movement of the medium is perpendicular to the direction of the what?
Options:
A. fuel movement
B. energy movement
C. pressure movement
D. friction movement
Answer: | B |
null | Question: What is a ridge of sand that extends away from the shore?
Options:
A. a dig
B. a scoop
C. a spit
D. a depression
Answer: | C |
null | Question: What type of barrier physically blocks pathogens from entering the body?
Options:
A. molecular
B. mechanical
C. Solid
D. potential
Answer: | B |
null | Question: What is the type of energy that involves movement?
Options:
A. molecular energy
B. mechanical energy
C. light energy
D. thermal energy
Answer: | B |
null | Question: What is the name of the tube that joins the mouth to the digestive and respiratory tracts?
Options:
A. larynx
B. esophagus
C. pharynx
D. fallopian tube
Answer: | C |
null | Question: Conversely, very large forces are created by liquids and solids when they try to expand but are constrained from doing so—which is equivalent to compressing them to less than their normal volume. this often occurs when a contained material warms up, since most materials expand when they do this?
Options:
A. increase mass
B. increase temperature
C. decrease temperature
D. increase density
Answer: | B |
null | Question: Free fatty acids are carboxylic acids that contain long chains of what?
Options:
A. lipds
B. hydrocarbons
C. particles
D. vapors
Answer: | B |
null | Question: What do we call coiled structures made of dna and proteins?
Options:
A. chromosomes
B. Organisms
C. Molecules
D. nodes
Answer: | A |
null | Question: The band disappears before metaphase but predicts the future plane of what?
Options:
A. cell division
B. cell wall
C. cell solution
D. cell matter
Answer: | A |
null | Question: Force times distance is the equation for what?
Options:
A. speed
B. power
C. work
D. gravity
Answer: | C |
null | Question: What is the term for longer chains of monosaccharides ?
Options:
A. hydrocarbons
B. proteins
C. polysaccharides
D. oligosaccharides
Answer: | C |
null | Question: What can be classified as monoprotic or polyprotic based on the number of acidic hydrogens they contain?
Options:
A. salts
B. cations
C. acids
D. ions
Answer: | C |
null | Question: When water freezes, it expands in volume as what is formed?
Options:
A. plasma
B. movement
C. energy
D. ice
Answer: | D |
null | Question: What is telomere shortening associated with?
Options:
A. aging
B. changing
C. reducing
D. sleeping
Answer: | A |
null | Question: What is made by trees and other plants during photosynthesis?
Options:
A. carbon dioxide
B. nitrogen
C. methane
D. oxygen
Answer: | D |
null | Question: All chordates are deuterostomes possessing a what?
Options:
A. notochord
B. zygote
C. hydrochord
D. endoderm
Answer: | A |
null | Question: During an earthquake what causes seismic waves?
Options:
A. Currents
B. low tide
C. high winds
D. rock displacement
Answer: | D |
null | Question: What term describes a way that small molecules or ions move across the cell membrane without input of energy by the cell?
Options:
A. impassive transport
B. physical transport
C. immune transport
D. passive transport
Answer: | D |
null | Question: What is the term for a resource that is used in a way that meets the needs of the present without keeping future generations from meeting their needs?
Options:
A. innovative
B. sustainable
C. structural
D. tolerable
Answer: | B |
null | Question: What type of bacteria change nitrogen gas from the atmosphere to nitrates in soil?
Options:
A. nitrogen fixing bacteria
B. multicellular bacteria
C. spiral bacteria
D. hydrophylic bacteria
Answer: | A |
null | Question: Animals produce most of what chemicals, which are needed to synthesize the fatty acids they need?
Options:
A. hormones
B. enzymes
C. solvents
D. carbohydrates
Answer: | B |
null | Question: Static friction acts on objects when they are resting on what?
Options:
A. a pool of water
B. their laurels
C. a surface
D. a single point
Answer: | C |
null | Question: Acetone is the simplest type of what organic compound that involves a carbonyl in which the carbon atom makes single bonds with two other carbon atoms?
Options:
A. ketone
B. anion
C. enzyme
D. protein
Answer: | A |
null | Question: The way of learning that involves reward and punishment is called?
Options:
A. mixed
B. conditioning
C. pressure
D. foolish
Answer: | B |
null | Question: Why does the heating element of a toaster get hot so quickly?
Options:
A. good insulator
B. magnetic force
C. good conductor
D. charged battery
Answer: | C |
null | Question: What are fungus-like protists?
Options:
A. viruses
B. molds
C. bacteria
D. feces
Answer: | B |
null | Question: An antigen is a macromolecule that reacts with components of what?
Options:
A. digestion system
B. circulatory system
C. pulmonary system
D. immune system
Answer: | D |
null | Question: When skunks are in danger what do they give off?
Options:
A. warning howls
B. foul smell
C. ejected quills
D. sweet odor
Answer: | B |
null | Question: What is the term for going into a dormant state during the winter?
Options:
A. hibernation
B. homeostasis
C. gestation
D. fermentation
Answer: | A |
null | Question: The cochlea is a shell-like structure that is full of fluid and lined with nerve cells called what?
Options:
A. hair cells
B. red cells
C. sperm cells
D. brain cells
Answer: | A |
null | Question: What state is achieved when the body's internal environment is kept more-or-less constant?
Options:
A. cancerous
B. hypothesis
C. homeostasis
D. consciousness
Answer: | C |
null | Question: What is a high concentrated solution typically referred to as?
Options:
A. stock solution
B. share solution
C. percent solution
D. saline sollution
Answer: | A |
null | Question: What analytical technique, using stained gel, can separate dna fragments or rna molecules and proteins?
Options:
A. surface electrophoresis
B. microwave electrophoresis
C. static electrophoresis
D. gel electrophoresis
Answer: | D |
null | Question: Splitting of the nucleus of a radioactive atom into two smaller nuclei yields what type of reaction, which releases a great deal of energy from a small amount of matter?
Options:
A. nucleation
B. nuclear fission
C. solar fission
D. nuclear fusion
Answer: | B |
null | Question: Which system in the human body consists of the heart, a network of blood vessels, and blood?
Options:
A. cardiac system
B. cardiovascular system
C. nervous system
D. circulatory system
Answer: | B |
null | Question: In response to changing environmental conditions, prokaryotic populations can undergo what process in short periods of time?
Options:
A. fusion
B. reproduction
C. evolution
D. extinction
Answer: | C |
null | Question: Specialized peroxisomes called glyoxysomes are found in the fat-storing tissues of what?
Options:
A. plant seeds
B. chloroplasts
C. plant stems
D. plant leaves
Answer: | A |
null | Question: The biological electron transport chain provides for an orderly, stepwise transfer of electrons. both nadh (reduced nicotinamide adenine dinucleotide) and fadh2 (reduced flavin adenine dinucleotide) are energy rich molecules that liberate a large amount of energy during what?
Options:
A. extrapolation
B. oxidation
C. conduction
D. evaporation
Answer: | B |
null | Question: The cytoskeleton is a cellular "scaffolding" or "skeleton" that crisscrosses what?
Options:
A. cerebellum
B. cytoplasm
C. cell membrane
D. golgi apparatus
Answer: | B |
null | Question: What is the organ system that brings oxygen into the body and releases carbon dioxide?
Options:
A. liver
B. lungs
C. brain
D. kidneys
Answer: | B |
null | Question: Algae is a promising alternative to traditional crops for what type of fuels?
Options:
A. non-renewable
B. fossil
C. biofuel
D. fertilizer
Answer: | C |
null | Question: An estimated 100 trillion of these live in the gut of an average person?
Options:
A. bacteria
B. algae
C. pathogens
D. viruses
Answer: | A |
null | Question: Do amphibians and reptiles maintain a constant body temperature?
Options:
A. no, they have about the same body temperature as their surroundings
B. no, they have a higher body temperature than their surroundings
C. no, they have a lower body temperature than their surroundings
D. yes
Answer: | A |
null | Question: A change in species over time is known as?
Options:
A. variation
B. divergence
C. evolution
D. generation
Answer: | C |
null | Question: When both momentum and kinetic energy are conserved in a closed system, the collision is called what?
Options:
A. a spontaneous collision
B. a static collision
C. an elastic collision
D. an accidental collision
Answer: | C |
null | Question: How many people die from air pollution each year?
Options:
A. 22 million
B. 5 million
C. 17 million
D. 14 million
Answer: | A |
null | Question: Hypertension, or high blood pressure, can increase the risk of what?
Options:
A. physiological disease
B. cardiovascular disease
C. bone disease
D. abnormal disease
Answer: | B |
null | Question: What is the key to the demographic transition?
Options:
A. higher death rates
B. higher birth rates
C. reduced family size
D. higher expatriation
Answer: | C |
null | Question: What environment do animals with gills live in?
Options:
A. cold
B. underground
C. water
D. air
Answer: | C |
null | Question: What is one of the most common biochemical compounds on earth and is found in all plants?
Options:
A. sulfur
B. hydrogen
C. cellulose
D. carbon dioxide
Answer: | C |
null | Question: In response to high blood osmolarity, which can occur during dehydration or following a very salty meal, the osmoreceptors signal the posterior pituitary to release this?
Options:
A. oxygen
B. antidiuretic hormone (adh)
C. salt
D. adrenaline
Answer: | B |
null | Question: What word describes a carbonyl where the carbon atom makes single bonds with two others?
Options:
A. acetone
B. ions
C. photons
D. ketones
Answer: | D |
null | Question: What occurs whenever an unbalanced force acts on an object?
Options:
A. compression
B. acceleration
C. vibration
D. inertia
Answer: | B |
null | Question: Bases are ionic compounds consisting of hydroxide ions and a what?
Options:
A. sulfate
B. carbonate
C. cinion
D. cation
Answer: | D |
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