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What is the general name for the homogeneous mixture that is formed when a solute dissolves in a solvent?
A. Dissolvant
B. Combination
C. solution
D. Reaction
Answer:
|
C
|
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|
Life itself could not exist without what energy, which plays a vital role in photosynthesis?
A. light energy
B. magnetic energy
C. time energy
D. spin energy
Answer:
|
A
|
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|
What does power imply is happening to energy?
A. being destroyed
B. being transferred
C. is expanding
D. being created
Answer:
|
B
|
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|
Because the masses of subatomic particles are so small, a new unit, called what, was defined?
A. atomic mass unit
B. atomic volume unit
C. particle mass unit
D. nuclear mass unit
Answer:
|
A
|
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|
Which organ breaks down amino acids and toxins that are in the blood?
A. kidney
B. liver
C. small intestine
D. skin
Answer:
|
B
|
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|
Which compound has positively and negatively charged ends?
A. polar compound
B. tumultuous compound
C. real compound
D. non-polar compound
Answer:
|
A
|
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|
What system of the body is responsible for producing hormones?
A. regulatory system
B. nervous system
C. homeostasis system
D. endocrine system
Answer:
|
D
|
sciq
|
What happens to a substance in a liquid state when the temperate is lowed?
A. it dissipates
B. it solidifies
C. it evaporates
D. it melts
Answer:
|
B
|
sciq
|
Sublimation and deposition involve direct transitions between solid and gas without going through which state?
A. liquid
B. carbon
C. homeostasis
D. chemical
Answer:
|
A
|
sciq
|
What is the process by which plants and animals increase in size?
A. grafting
B. growth
C. reproduction
D. splicing
Answer:
|
B
|
sciq
|
Which glands sit atop the kidneys and are composed of an outer cortex and an inner medulla, all surrounded by a connective tissue capsule?
A. thyroid glands
B. adrenal
C. gonads
D. salivary
Answer:
|
B
|
sciq
|
What is it that surrounds cells and serve to keep the insides separated from the outsides?
A. similar membranes
B. abundant membranes
C. inner membranes
D. biological membranes
Answer:
|
D
|
sciq
|
What is the gland in the chest behind the breast bone that stores some types of lymphocytes while they mature?
A. lumbar
B. thymus
C. pineal
D. Montgomery
Answer:
|
B
|
sciq
|
What promotes cell division and are necessary for growing plants in tissue culture?
A. auxins
B. polyamines
C. cytokinins
D. mitochondria
Answer:
|
C
|
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|
What map shows the locations of several genes on the x chromosome?
A. the component map
B. the linkage map
C. The allelic map
D. The genomic map
Answer:
|
B
|
sciq
|
Although they are as different as deserts and wetlands, all of these ecosystem units have populations of interacting species?
A. continents
B. zoos
C. corals
D. biomes
Answer:
|
D
|
sciq
|
What is the name of the bone that forms the forehead?
A. upper bone
B. forebone
C. frontal bone
D. high bone
Answer:
|
C
|
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|
What is the name for a molecule with two atoms?
A. covalent
B. ionized
C. diatomic
D. hydrostatic
Answer:
|
C
|
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|
What type of motor is used in most household devices with moving parts?
A. thermal motors
B. electric motors
C. cooling motors
D. vacuum motors
Answer:
|
B
|
sciq
|
What process determines the dna sequence of an entire genome?
A. genetic factorization
B. chromosomal counting
C. dna replication
D. whole-genome sequencing
Answer:
|
D
|
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|
What disease can too little calcium cause?
A. arthritis
B. anemia
C. osteoporosis
D. psoriasis
Answer:
|
C
|
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|
In a scientific investigation, what do you call a direct, physical observation of something or a process?
A. sighting
B. evidence
C. declaration
D. reason
Answer:
|
B
|
sciq
|
The volume of blood each ventricle pumps per minute is called what?
A. blood output
B. cardiac output
C. trauma output
D. brain output
Answer:
|
B
|
sciq
|
How does consuming enterobactin help our body?
A. builds excess iron
B. eliminates excess iron
C. eliminates excess oxygen
D. eliminates excess fat
Answer:
|
B
|
sciq
|
Green cyanobacteria on a lake produce food through what process?
A. reverse transferase
B. photosynthesis
C. glycolysis
D. spermatogenesis
Answer:
|
B
|
sciq
|
Because the human body is about 70% water by mass, and liquid water has high specific heat, a great deal of what is required to change its temperature?
A. power
B. energy
C. work
D. digestion
Answer:
|
B
|
sciq
|
The process of making a polymer is called what?
A. reaction
B. polymerization
C. memorization
D. fermentation
Answer:
|
B
|
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|
Behind a ship, what is the giant rectangular bucket that is dragged along from the behind called?
A. prop
B. dredge
C. wig
D. trousers
Answer:
|
B
|
sciq
|
What is it called when multiple faults are located in close proximity to one another?
A. solid zone
B. crystal zone
C. fault zone
D. fog zone
Answer:
|
C
|
sciq
|
Binding of acetylcholine to receptors on the muscle fiber leads to a?
A. excitation
B. conduction
C. depolarization
D. repolarization
Answer:
|
C
|
sciq
|
Most tunicates live a sessile existence in shallow ocean waters and are suspension feeders. the primary foods of tunicates are plankton and this?
A. crustaceans
B. bacteria
C. detritus
D. debris
Answer:
|
C
|
sciq
|
Ginkgo trees are gymnosperms with broad?
A. fruits
B. leaves
C. trunks
D. roots
Answer:
|
B
|
sciq
|
Recrystallization is a process that can remove what, which result when compounds are synthesized?
A. minerals
B. chemicals
C. contaminants
D. substances
Answer:
|
C
|
sciq
|
What is one of the most common biochemical compounds on earth and is found in all plants?
A. sulfur
B. hydrogen
C. cellulose
D. carbon dioxide
Answer:
|
C
|
sciq
|
What man-made structures orbit all of the inner planets as well as jupiter and saturn?
A. moons
B. comets
C. satellites
D. space shuttles
Answer:
|
C
|
sciq
|
What basic structures take in nutrients from the soil and help the plant survive?
A. tissues
B. roots
C. stems
D. leaves
Answer:
|
B
|
sciq
|
What does ubiquitin indicate about a protein's lifespan?
A. reaction ratio
B. transaction
C. completion
D. initiation
Answer:
|
C
|
sciq
|
Which vertebrae carry the greatest amount of body weight and are thus characterized by the large size and thickness of the vertebral body?
A. invertebrae
B. lumbar vertebrae
C. artery vertebrae
D. thickness vertebrae
Answer:
|
B
|
sciq
|
Because of it's repeating pattern, what is mendeleev's table of the elements called?
A. cycles table
B. phases table
C. periodic table
D. serial chart
Answer:
|
C
|
sciq
|
Where does an electron move to after it absorbs energy?
A. a shell farther from the nucleus
B. atomic orbit
C. another electron
D. a shell closer to the nucleus
Answer:
|
A
|
sciq
|
What is needed by all known forms of life?
A. water
B. warmth
C. nitrogen
D. air
Answer:
|
A
|
sciq
|
What lengths are positive for converging lens and negative for diverging lens?
A. differential lengths
B. focal lengths
C. light lengths
D. wavelengths
Answer:
|
B
|
sciq
|
Where does most geological activity takes place?
A. at plate boundaries
B. at ocean bottoms
C. in mountain ranges
D. in coastal areas
Answer:
|
A
|
sciq
|
Birds have light-weight bones that are filled with what?
A. water
B. air
C. blood
D. proteins
Answer:
|
B
|
sciq
|
Why does a large log burn relatively slowly compared to the same mass of wood in the form of small twigs?
A. smaller blade area
B. larger surface area
C. larger surface area
D. smaller surface area
Answer:
|
D
|
sciq
|
What is usually necessary to develop cancer?
A. novel genes mutations
B. crucial genes mutations
C. multiple genes mutations
D. massive genes mutations
Answer:
|
C
|
sciq
|
Consumers are organisms that depend on other organisms for what?
A. shelter
B. reproduction
C. food
D. knowledge
Answer:
|
C
|
sciq
|
Wine, air, and gunpowder are all examples of what kind of common mixtures?
A. contiguous
B. heterogeneous
C. homogeneous
D. combined
Answer:
|
C
|
sciq
|
What is the term for anything that can cause cancer?
A. chemical
B. contaminate
C. contamination
D. carcinogen
Answer:
|
D
|
sciq
|
What system of organs delivers blood to all cells of the body?
A. cardiovascular
B. integumentary
C. respiratory
D. gastrointestinal
Answer:
|
A
|
sciq
|
What part of a chromosome exists in different states of condensation at different times?
A. chromonema
B. pellicle
C. centromeres
D. the chromatin
Answer:
|
D
|
sciq
|
What do the ears have to be protected from in order to avoid hearing loss?
A. loud sounds
B. Cold weather
C. Water
D. Storms
Answer:
|
A
|
sciq
|
What is the first and longest phase of mitosis known as?
A. telophase
B. anaphase
C. metaphase
D. prophase
Answer:
|
D
|
sciq
|
Plants reduce nitrate back to what before incorporating the nitrogen into organic compounds:?
A. sulfide
B. phosphate
C. phosphate
D. ammonium
Answer:
|
D
|
sciq
|
Growth factors and certain plant and animal hormones serve as molecular messengers that initiate pathways of what?
A. cell fusion
B. cell growth
C. cellular decay
D. cell division
Answer:
|
D
|
sciq
|
When a wave travels down a string, the string vibrates up and down at right angles to the wave's what?
A. direction
B. frequency
C. pressure
D. gravity
Answer:
|
A
|
sciq
|
Generally speaking, electronegativity values ______ from left to right across a row in the periodic table and _______ down a column.
A. decrease, increase
B. move, fall
C. reverse, descend
D. increase, decrease
Answer:
|
D
|
sciq
|
The most magnetic material in nature is what?
A. crystals
B. molecules
C. magnetite
D. gold
Answer:
|
C
|
sciq
|
Goldfish, tuna, salmon, perch, and cod are examples of which group of fish?
A. ray-finned fish
B. cartilaginous fish
C. spiny-lobed fish
D. bony fish
Answer:
|
A
|
sciq
|
A bicycle is an example of a compound machine made of many what?
A. simple machines
B. interchangeable machines
C. useful machines
D. linked machines
Answer:
|
A
|
sciq
|
What is the term for a system maintaining a stable internal environment in a changeable external environment?
A. Pregnant
B. fetus
C. hypothesis
D. homeostasis
Answer:
|
D
|
sciq
|
When carbon atoms are not bonded to as many hydrogen atoms as possible, what kind of hydrocarbon results?
A. unsaturated
B. unstable
C. saturated
D. aqueous
Answer:
|
A
|
sciq
|
When magma heats groundwater, it may come to the surface as a hot spring or a what?
A. cave
B. volcano
C. geyser
D. pond
Answer:
|
C
|
sciq
|
Fish have a circulatory system with a two-chambered what?
A. heart
B. brain
C. lung
D. stomach
Answer:
|
A
|
sciq
|
What is the measure of water potential?
A. trials
B. fluctuations
C. spores
D. megapascals
Answer:
|
D
|
sciq
|
What is the largest organelle in a eukaryotic cell?
A. apoptosis
B. nucleus
C. cortex
D. epidermis
Answer:
|
B
|
sciq
|
Neurologists are physicians who specialize in disorders of what system?
A. musculoskeletal system
B. nervous system
C. circulatory system
D. digestive system
Answer:
|
B
|
sciq
|
How is flowing water and blowing wind similar?
A. processes particles
B. phases particles
C. stocks particles
D. transports particles
Answer:
|
D
|
sciq
|
What is the study of heredity called?
A. heretics
B. geriatrics
C. pediatrics
D. genetics
Answer:
|
D
|
sciq
|
What is a disease characterized by high concentrations of glucose in the blood?
A. leukemia
B. myeloma
C. hepatitis
D. diabetes
Answer:
|
D
|
sciq
|
What is responsible for the properties of metals?
A. the metallic yield
B. the metallic properties
C. the metallic bond
D. the metallic presence
Answer:
|
C
|
sciq
|
What is the first year of life following birth called?
A. baby
B. childhood
C. infancy
D. toddler
Answer:
|
C
|
sciq
|
Where are electrons located in relation to the nucleus?
A. In a sack attached to the nucleus
B. though the nucleus
C. outside the nucleus
D. in the nucleus
Answer:
|
C
|
sciq
|
What type of switch automatically opens a circuit if too much current flows through it?
A. circuit breaker
B. kill switch
C. toggle switch
D. regulator switch
Answer:
|
A
|
sciq
|
The net effect of aldosterone is to conserve and increase water levels in the plasma by reducing the excretion of what element, and thus water?
A. potassium
B. sodium
C. lithium
D. oxygen
Answer:
|
B
|
sciq
|
An element that is generally a poor conductor of heat and electricity is known as a ______
A. superconductor
B. nonmetal
C. alloy
D. magnet
Answer:
|
B
|
sciq
|
An electron in an atom is completely described by four of what?
A. photosynthesis numbers
B. decay numbers
C. quantum numbers
D. prime bumbers
Answer:
|
C
|
sciq
|
Organic compounds are molecules built around what element?
A. oxygen
B. helium
C. carbon
D. phosphorus
Answer:
|
C
|
sciq
|
What is the term for the application of science to solve problems?
A. research
B. technology
C. ingenuity
D. mathematics
Answer:
|
B
|
sciq
|
What sorts of collisions do not result in an overall loss of kinetic energy?
A. powerful
B. static
C. soft
D. elastic
Answer:
|
D
|
sciq
|
The human genome has how many more alu elements than the chimpanzee genome?
A. two times
B. six times
C. three times
D. ten
Answer:
|
C
|
sciq
|
What are all of the digits that can be known with certainty in a measurement plus an estimatied last digit called?
A. important figures
B. significant figures
C. miniature figures
D. determined figures
Answer:
|
B
|
sciq
|
The human male and female reproductive cycles are controlled by the interaction of hormones from the hypothalamus and anterior pituitary with hormones from reproductive tissues and organs. in both sexes, the hypothalamus monitors and causes the release of hormones from this?
A. hypothalamus gland
B. pineal gland
C. thyroid gland
D. anterior pituitary gland
Answer:
|
D
|
sciq
|
What property does liquid display when it interacts with glass?
A. property of oxidize
B. property of diffusion
C. property of adhesion
D. property of repulsion
Answer:
|
C
|
sciq
|
Where does chemical digestion mainly occur?
A. liver
B. small intestine
C. apendix
D. pancreas
Answer:
|
B
|
sciq
|
What is the name of the first leaf developed inside an embryo?
A. exon
B. polylepis
C. cotyledon
D. gastromyzon
Answer:
|
C
|
sciq
|
Interconnected pathways through which carbon is recycled through the biotic and abiotic components of what?
A. atmosphere
B. biosphere
C. ozone
D. hemisphere
Answer:
|
B
|
sciq
|
Composed largely of the polysaccharide chitin, the exoskeleton provides an effective barrier defense against most what?
A. parasites
B. white blood cells
C. vaccines
D. pathogens
Answer:
|
D
|
sciq
|
A wall of rocks or concrete that juts out into the ocean perpendicular to the shore is called?
A. shield
B. groin
C. rib
D. fault
Answer:
|
B
|
sciq
|
Oils are liquid lipids that plants use to store what?
A. energy
B. fat
C. Protein
D. carbo
Answer:
|
A
|
sciq
|
A perfectly inelastic collision reduces internal kinetic energy to the minimum it can have while still conserving what?
A. heat
B. momentum
C. energy
D. elements
Answer:
|
B
|
sciq
|
Which theorem states that, if a population meets certain conditions, it will be in equilibrium?
A. hardy-weinberg theorem
B. hardy- jacksons theorem
C. hardy - henkel theorem
D. hardy - zeiss theorem
Answer:
|
A
|
sciq
|
What is greatest source of hazardous waste?
A. heat
B. water
C. study
D. industry
Answer:
|
D
|
sciq
|
A circuit that consists of two loops is called a what?
A. parallel circuit
B. unnatural circuit
C. complex circuit
D. diverse circuit
Answer:
|
A
|
sciq
|
Hyenas and cockroaches are examples of what decomposers that consume the soft tissues of dead animals?
A. parasites
B. predators
C. foragers
D. scavengers
Answer:
|
D
|
sciq
|
What helps to convert some molecules to forms that can be taken up by other organisms?
A. protists
B. prokaryotes
C. eukaryotes
D. scavangers
Answer:
|
B
|
sciq
|
As hydrostatic pressure in the kidneys increases, what happens to the amount of water leaving the capillares?
A. it decreases
B. it increases
C. it evaporates
D. it stays the same
Answer:
|
B
|
sciq
|
What is the percentage of production transferred from one trophic level to the next
A. underlie efficiency
B. trophic efficiency
C. robust efficiency
D. hypothesized efficiency
Answer:
|
B
|
sciq
|
What is the metal part of the compound named as?
A. the element
B. the source
C. the base
D. the basic
Answer:
|
A
|
sciq
|
How do plants and algae both make food?
A. Digestion.
B. atherosclerosis
C. spermatogenesis
D. photosynthesis
Answer:
|
D
|
sciq
|
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