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Gymnosperms have seeds but do not have what?
A. flowers
B. roots
C. stems
D. leaves
Answer: | A |
Modern members of what broad animal group live in many different habitats and are found on every continent except antarctica?
A. parasites
B. arachnids
C. reptiles
D. amphibians
Answer: | C |
The right ventricle pumps what type of blood toward the lungs?
A. oxygen-rich
B. oxygenated
C. plasma
D. oxygen-poor
Answer: | D |
Some 96% of the dry mass consists of organic compounds produced by what?
A. electrolysis
B. erosion
C. reproduction
D. photosynthesis
Answer: | D |
What is it called when something is unable to move from place to place?
A. Undrate
B. sessile
C. ovate
D. obovate
Answer: | B |
What waves are the broad range of electromagnetic waves with the longest wavelengths and lowest frequencies?
A. microwaves
B. light
C. radio
D. sound
Answer: | C |
What are the two main types of sedimentary rocks?
A. clastic and chemical
B. shale and limestone
C. basalt and dolomite
D. sandstone and shale
Answer: | A |
Light waves which interfere with themselves after interaction with a small aperture or target are said to what?
A. refract
B. adduce
C. diffract
D. reflect
Answer: | C |
Distance traveled divided by time yields what measurement, which is another word used to describe the speed of a chemical reaction?
A. rate
B. acceleration
C. flow
D. displacement
Answer: | A |
Beryllium, magnesium, calcium, strontium, and barium are classified as what type of metals?
A. alkaline aligned metals
B. acid earth metals
C. alkaline earth metals
D. alkaline support metals
Answer: | C |
Common among mammals and insects, pheromones are often related to what type of behavior?
A. reproductive
B. immune
C. aggressive
D. cardiac
Answer: | A |
Neutron stars are the corpses of left over what?
A. supernova explosions
B. stellar explosions
C. planet explosions
D. gravitational explosions
Answer: | A |
In recent years, however, researchers have discovered that microsporidia actually have tiny organelles derived from what?
A. carbohydrates
B. proteins
C. mitochondria
D. plasma
Answer: | C |
The negative logarithm of the hydroxide-ion concentration of a solution is called?
A. the piel
B. the hil
C. the poh
D. the hop
Answer: | C |
What is the greatest contribution of arthropods to human food supply?
A. reproduction
B. hibernation
C. pollination
D. vegetation
Answer: | C |
What kind of weather change do la nina years usually bring?
A. heat
B. Mass amounts of snow
C. drought
D. moisture
Answer: | C |
In physics, _______ is defined as the average kinetic energy of the particles in an object?
A. heat
B. temperature
C. potential energy
D. climate
Answer: | B |
What are proteins encoded by?
A. DNA
B. genes
C. codons
D. RNA
Answer: | B |
In alcoholic fermentation , which acid changes to alcohol and carbon dioxide?
A. lipoic
B. chloride
C. rain
D. pyruvic
Answer: | D |
What is another term for scale worms?
A. spirogyra
B. wormidanopis
C. trichina
D. halkieria
Answer: | D |
What type of device do scientist use to determine wind speed?
A. photometer
B. anemometer
C. dynamometer
D. barometer
Answer: | B |
Which constellation looks like a rectangle high in winter's south-southeastern sky?
A. Apus
B. orion
C. Caelum
D. Andromeda
Answer: | B |
What mammal is often a pollinator of nocturnal flowers?
A. sunbirds
B. bat
C. rabbits
D. hummingbirds
Answer: | B |
What can reproduce by infecting the cell of a living host?
A. carcinogens
B. virus
C. mucus
D. bacteria
Answer: | B |
The theory that establishes the concepts of atoms and how they compose matter is called what?
A. modern particle theory
B. contemporary atomic theory
C. modern atomic theory
D. unified matter theory
Answer: | C |
How does the heart transport blood?
A. blood vessels
B. blood pellets
C. muscles
D. nerves
Answer: | A |
The gender of a baby is determined by what special pair of chromosomes?
A. reflection chromosomes
B. sex chromosomes
C. diploid chromosomes
D. sister chromatids
Answer: | B |
What does the activity of an organism depend on the totality of?
A. chemical attraction
B. independent cells
C. interdependence
D. adaptations
Answer: | B |
What is solid water that forms when water vapor undergoes deposition?
A. dew
B. distillate
C. glacier
D. frost
Answer: | D |
What gets released into the atmosphere when fossil fuels are burned?
A. chemical dioxide
B. carbon dioxide
C. hydrogen
D. oxygen
Answer: | B |
What is the term for the measure of a fluid's thickness?
A. elasticity
B. viscosity
C. friction
D. salinity
Answer: | B |
Plant cells have structures that animal cells?
A. drink
B. eat
C. lack
D. have
Answer: | C |
What reduces the need for pesticides and other toxic chemicals?
A. helium
B. yeast
C. pollen
D. fungi
Answer: | D |
Matter can be described with what two encompassing types of properties?
A. thermal and magnetic
B. velocity and energy
C. physical and chemical
D. color and distance
Answer: | C |
When the number of active receptors falls below that threshold, what happens to the cellular response?
A. it increases
B. it responds
C. it ceases
D. it stabilizes
Answer: | C |
Types of neurons include sensory neurons, motor neurons, and?
A. histones
B. synapses
C. anions
D. interneurons
Answer: | D |
Active and passive forms of what enable the body to resist damage from pathogens?
A. stem cells
B. potential
C. autonomy
D. immunity
Answer: | D |
What is the energy of motion called?
A. binary energy
B. mixed energy
C. potential energy
D. kinetic energy
Answer: | D |
What is the term for an infection caused by a fungal parasite?
A. mitosis
B. mycosis
C. acrobasis
D. mydriasis
Answer: | B |
What do you call the ability to sense sound energy and perceive sound?
A. tuning
B. sensory deprivation
C. hearing
D. echolocation
Answer: | C |
Some plants can detect increased levels of what when reflected from leaves of encroaching neighbors?
A. light
B. oxygen
C. air
D. water
Answer: | A |
What are the high points of a transverse wave called?
A. peaks
B. crests
C. troughs
D. ridges
Answer: | B |
What is the transfer of heat by a current?
A. combustion
B. diffusion
C. radiation
D. convection
Answer: | D |
When acellular slime molds swarm, they fuse together to form a single cell with many what?
A. cytoplasm
B. digestive tracts
C. lungs
D. nuclei
Answer: | D |
Potential energy is not only associated with the location of matter, but also with the structure of matter. even a spring on the ground has potential energy if it is what?
A. compressed
B. watched
C. ignored
D. coupled
Answer: | A |
What is the name of film that polyester fibers form?
A. fabric
B. Softness
C. mylar
D. layers
Answer: | C |
Where do germline mutations occur in?
A. in spores
B. in gametes
C. In blood cells
D. in aggregations
Answer: | B |
What a mixture of nitric acid and hydrochloric acid?
A. crystal regia
B. aqua regia
C. sulfate regia
D. acidus regia
Answer: | B |
Most members of what kingdom of spore-making organisms grow on the forest floor, where the dark and damp environment is rich?
A. moss
B. bacteria
C. algae
D. fungi
Answer: | D |
What results when the water vapor from a hot shower contacts the cooler surface of a mirror?
A. foggy mirror
B. cleaner mirror
C. mirror brightens
D. the mirror breaks
Answer: | A |
What type of vascular plants produce seeds in cones?
A. gymnosperms
B. Proteins
C. angiosperms
D. lipids
Answer: | A |
In fruit flies, all homeotic genes are found on one what?
A. enzymes
B. genome
C. chromosome
D. site
Answer: | C |
Certain medications can suppress the immune system. this is an intended effect of drugs given to people with what?
A. genetic disorders
B. transplanted organs
C. benign tumors
D. infections
Answer: | B |
The geometry of the bf 3 molecule is called what?
A. fractal planar
B. spherical planar
C. distorted planar
D. trigonal planar
Answer: | D |
In multicellular organisms, mutations can be subdivided into germline mutations and?
A. comparative mutations
B. somatic mutations
C. resultant mutations
D. elective mutations
Answer: | B |
What is the name for a biologist who studies fungi?
A. oncologists
B. mycologists
C. musicologists
D. egyptologists
Answer: | B |
How many different kinds of ions are produced when sodium chloride dissociates ?
A. one
B. three
C. two
D. five
Answer: | C |
What mineral is made of one silicon atom and two oxygen atoms?
A. pumice
B. cobalt
C. quartz
D. glass
Answer: | C |
How many cycles do cells have?
A. two
B. seven
C. four
D. six
Answer: | C |
Gas particles can move randomly in what directions?
A. one direction
B. few directions
C. all directions
D. some directions
Answer: | C |
The total number of protons and neutorns in an atom is called what?
A. atom number
B. mass number
C. volume number
D. formation number
Answer: | B |
All matter is composed of tiny indivisible particles called atoms. all atoms of an element are identical in mass and this?
A. chemical properties
B. electrical properties
C. liquid properties
D. acid properties
Answer: | A |
Where do lightnings build up?
A. air
B. clouds
C. stratosphere
D. troposphere
Answer: | B |
What do we call zeros that appear after nonzero digits?
A. left-end zeros
B. placeholders
C. right-end zeros
D. significant digits
Answer: | C |
What term is used to describe a bond formed by the overlap of orbitals in an end-to-end fashion, with the electron density concentrated between the nuclei of the bonding atoms?
A. beta bond
B. sigma bond
C. rna bond
D. lattice bond
Answer: | B |
According to count rumford, which two are equivalent ways of transferring energy?
A. osmosis and heredity
B. time and space
C. heat and work
D. addition and multiplication
Answer: | C |
What type of radio waves exist in the 540 to 1600 khz frequency range?
A. sound waves
B. fm radio waves
C. microwaves
D. am radio waves
Answer: | D |
What type of cells make up about one quarter of all white blood cells?
A. erythrocytes
B. tumors
C. lymphocytes
D. Fat
Answer: | C |
The mass of the objects and the distance between them affect the strength of what universal force?
A. gravity
B. motion
C. states of matter
D. weight
Answer: | A |
Without the dominant disturbance, the fire-adapted species are usually outcompeted and biodiversity is what?
A. immaterial
B. reduced
C. increased
D. unaffected
Answer: | B |
Constantly going through some form of growth and repair is a characteristic of all what?
A. viruses
B. mass
C. living things
D. bacteria
Answer: | C |
Positive charges move in the direction of the electric field and the same direction as what current?
A. conventional current
B. direct current
C. alternating current
D. relativity current
Answer: | A |
Redox reactions, like other chemical reactions, begin with a product and end with what?
A. reactant
B. decomposition
C. plasma
D. stimulant
Answer: | A |
How does alcohol expand over a wide range of temperatures?
A. exponentially
B. variably
C. uniformly
D. erratically
Answer: | C |
How many years ago may the earliest fungi have evolved?
A. 500 million
B. .350 million
C. 600 million
D. .250 million
Answer: | C |
What are the bones in partly movable joints held in place by?
A. collagen
B. tendons
C. socket
D. cartilage
Answer: | D |
Sepals, petals, stamens, and carpels are what kind of organs?
A. animal
B. marine
C. floral
D. reproductive
Answer: | C |
How do most growing plant cells expand?
A. through water uptake
B. through cell respiration
C. through photosynthesis
D. through germination
Answer: | A |
What is the common term for the chemical formula h 2 0?
A. water
B. air
C. hydrogen
D. oxygen
Answer: | A |
What kind of reaction is needed to prepare amides?
A. lipophilic acid reaction
B. carboxylic acid reaction
C. oxidize acid reaction
D. amino acid reaction
Answer: | B |
What is the process by which the egg is fertilized by the pollen of the same flower?
A. self realization
B. self pollination
C. self condensation
D. self formation
Answer: | B |
In moss, what becomes elongated to elevate the capsule to enhance spore dispersal?
A. seta
B. risa
C. sera
D. porta
Answer: | A |
What is the base unit that frequency is typically measured in?
A. watt
B. volume
C. degrees
D. hertz
Answer: | D |
Controlling muscles and maintaining balance are just two of the roles of what system?
A. bacterial system
B. digestive system
C. nervous system
D. electrical system
Answer: | C |
Displacement divided by time is equal to the average what?
A. force
B. speed
C. velocity
D. acceleration
Answer: | C |
The complete hydrolysis of starch yields what?
A. sucrose
B. insulin
C. glutamate
D. glucose
Answer: | D |
What term describes an imbalance of attractive forces between liquid molecules at the surface of a liquid?
A. surface tension
B. molecular tension
C. currents tension
D. obsolute tension
Answer: | A |
In mammals, four specialized types of what serve to cut, tear, and grind food?
A. spines
B. scales
C. plates
D. teeth
Answer: | D |
Atherosclerosis and coronary heart disease are examples of what type of body system disease?
A. connective system
B. excretory system
C. cardiovascular system
D. digestive system
Answer: | C |
When cats mark their territory by rubbing their face against an object, they deposit chemicals released by what structures?
A. taste buds
B. pituitary glands
C. scent glands
D. whiskers
Answer: | C |
Like other bryophytes, moss plants spend most of their life cycle as?
A. bacteriophages
B. spores
C. copepods
D. gametophytes
Answer: | D |
What is a benefit of low sulfur coal over high sulfur coal?
A. lower cost
B. greater enerty
C. less erosion
D. less pollution
Answer: | D |
Wings of bats and birds serve the same function. which body part should you study to understand ancestral differences?
A. skin inside wings
B. skull size
C. skin and feathers
D. bones inside wings
Answer: | D |
The best thermal conductors are also the best conductors of what, which is also related to the density of free electrons in them?
A. light
B. pollution
C. electricity
D. sound
Answer: | C |
What tissue do clubmosses have that mosses do not?
A. dioxide tissue
B. chorophyll
C. vascular tissue
D. nuclei
Answer: | C |
The average human body contains 5,830 g of what?
A. water
B. bacteria
C. blood
D. muscle
Answer: | C |
What type of speciation occurs when groups from the same species are geographically isolated for long periods?
A. symbiotic
B. asexual
C. prokaryotic
D. allopatric
Answer: | D |
What can damage the hair cells lining the cochlea of the inner ear?
A. amelodic sounds
B. wavering sounds
C. loud sounds
D. unexpected sounds
Answer: | C |
The boiling point of a solution is higher than the boiling point of the pure solvent, but the opposite occurs with this?
A. freezing point
B. evaporation point
C. dissolving point
D. liquidity point
Answer: | A |
What is the network of vessels and tissues that carry a clear fluid called lymph called?
A. vessel system
B. lymphatic system
C. excretory system
D. cleansing system
Answer: | B |
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