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Insect's antennae are useful for sensing what?
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chemicals
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sciq
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What exactly happens during rna translation?
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protein is synthesized
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sciq
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The body does not exist in isolation. there is a constant input of water and electrolytes into the system. while osmoregulation is achieved across membranes within the body, excess electrolytes and wastes are transported to the kidneys and excreted, helping to maintain this?
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osmotic balance
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sciq
|
Find the overall magnification of what instrument by finding the magnification of the objective, then the magnification of the eyepiece?
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compound microscope
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sciq
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What is a sac filled with fluid or other material?
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a cyst
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sciq
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What is defined as superheated gas with a positive electrical charge?
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plasma
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sciq
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Solids can be divided into amorphous solids and which other group?
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crystalline solids
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sciq
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What are the two types of cells?
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prokaryotes and eukaryotes
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sciq
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Like mitochondria, plastids contain their own what?
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dna
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sciq
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What kind of a relationship do plants and soil have?
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two-way relationship
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sciq
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What force opposes a motion of a moving body? for example a car breaking on a road.
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friction
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sciq
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Lead shielding is used to block what type of rays?
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gamma
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sciq
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Lacking blood vessels, nerve endings, or glands, the epidermis is the outer layer of what?
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skin
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sciq
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What begins approximately six weeks after fertilization in an embryo?
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ossification
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sciq
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Systemic veins return blood low in what to the right atrium?
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oxygen
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sciq
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What do animals observe in others to help solve problems?
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behavior
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sciq
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What type of organism has spores that are spread by water and wind?
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fungi
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sciq
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What is a fibrocartilaginous pad that fills the gap between adjacent vertebral bodies?
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intervertebral disc
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sciq
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What category of joints is immovable?
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synarthrosis
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sciq
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What is formed when nitrogen and sulfur oxides dissolve in rain?
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acid rain
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sciq
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By shocking ocean water, earthquakes can cause what deadly ocean waves?
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tsunamis
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sciq
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The length of a rectangular surface multiplied by its width is equal to what?
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area
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sciq
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What are metals and good electrical conductors that tend to lose their valence electrons in chemical reactions called?
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reductants
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sciq
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What term refers to an animal that sleeps during the day and is active at night?
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nocturnal
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sciq
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What is a capillary bed that filters blood principally based on particle size?
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glomerulus
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sciq
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What forms when a solute dissolves in a solvent?
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solution
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sciq
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What disease can too little calcium cause?
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osteoporosis
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sciq
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Alchemists, as early as the eighth century, knew nitric acid as aqua fortis, which means?
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strong water
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sciq
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What is a group of similar ecosystems with the same general abiotic factors and primary producers?
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biome
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sciq
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What is the standard measurement for mass?
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grams
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sciq
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The magnitude of the momentum vector is the product of what two properties?
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mass and speed
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sciq
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Animals can not produce their own food making them _________.
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heterotrophs
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sciq
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The part of a plant that is responsible for reproduction is the?
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flower
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sciq
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Worms use a hydrostatic type of what anatomical structure to move through their environment?
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skeleton
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sciq
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A species is a subdivision of a genus in what classification system?
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linnaean system
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sciq
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What do earth and the other planets in the solar system make around the sun?
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elliptical orbits
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sciq
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Of the four main wobble base pairs, guanine is paired with what?
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uracil
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sciq
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Kidneys, large intestine, liver, skin, and lungs comprise which system?
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excretory system
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sciq
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What is the term for a mutually beneficial relationship in which one organism lives inside the other?
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endosymbiosis
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sciq
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What is the term for an organism, or single living thing?
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individual
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sciq
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As temperature increases, the solubility of the majority of solid substances does what?
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increases
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sciq
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What is the name of the project concerning genetics that is one of the landmark scientific events of the last 50 years?
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human genome project
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sciq
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Which part of a fish helps them breathe?
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gills
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sciq
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Billions of what inside the human digestive tract help us digest food, make vitamins and play other important roles?
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bacteria
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sciq
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What unit of power is equal to 1 joule of energy per second?
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watt
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sciq
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The energy changes in what reactions are enormous compared with those of even the most energetic chemical reactions, and they result in a measurable change of mass?
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nuclear reactions
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sciq
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Silicon and germanium react with nitrogen at high temperature to form what?
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nitrides
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sciq
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Sand dunes migrate when sand is blown up a slope and this force pulls it down the other side?
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gravity
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sciq
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Earthquakes have both longitudinal and transverse components, and these travel at what?
|
different speeds
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sciq
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Slime molds have several morphological similarities to fungi, including spore-generation, that are thought to be the result of convergent what?
|
evolution
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sciq
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What is the thin coat of phospholipids that surrounds the cell and controls what enters and leaves?
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cell membrane
|
sciq
|
What are clouds on earth made of?
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water vapor
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sciq
|
What does the moving piston in an engine turn?
|
crankshaft
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sciq
|
What is used by sensitive systems to detect even low levels of radiation?
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crystals
|
sciq
|
When the hemoglobin loses its oxygen, it changes to what color?
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bluish red
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sciq
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What process creates sperm?
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spermatogensis
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sciq
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It was not until the era of the ancient greeks that we have any record of how people tried to explain the chemical changes they observed and used. at that time, natural objects were thought to consist of only four basic elements: earth, air, fire, and this?
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water
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sciq
|
Ionic compounds contain cations and anions rather than what?
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discrete neutral molecules
|
sciq
|
What kind of reaction do you see when the concentration of reactants is higher?
|
faster reaction rate
|
sciq
|
Solutions of ionic compounds and melted ionic compounds conduct what?
|
electricity
|
sciq
|
What is the process of the transfer of pollen from an anther to a stigma in angiosperms called?
|
pollination
|
sciq
|
A switch in a circuit controls the flow of what, specifically, within the circuit?
|
current
|
sciq
|
What kind of core does mercury have?
|
liquid metal
|
sciq
|
The curie (ci) is one measure of the rate of what?
|
decay
|
sciq
|
Within the petals are two whorls of fertile floral organs that produce what?
|
spores
|
sciq
|
Where do lancelets live?
|
shallow ocean water
|
sciq
|
What is the common measure of how hot or cold something is?
|
temperature
|
sciq
|
On the atomic level, the dissolution of an ionic compound occurs when water interacts with the what in the crystal lattice?
|
ions
|
sciq
|
What is the term for the use of radioactive decay to estimate the ages of fossils and rock?
|
radioactive dating
|
sciq
|
What are xylem and phloem responsible for transporting to the cells of leaves?
|
water and minerals
|
sciq
|
How many weeks are in the life cycle of ladybugs
|
four to six
|
sciq
|
What is the term for a formula that shows the elements in a compound in their lowest whole-number ratio?
|
empirical formula
|
sciq
|
What is the term for a structure composed of more than one type of tissue?
|
organ
|
sciq
|
In what ocean is the mid-atlantic ridge located?
|
atlantic ocean
|
sciq
|
What term is used to describe animals that excrete ammonia?
|
ammonotelic
|
sciq
|
A refrigerator must do work to reverse the normal direction of what?
|
thermal energy flow
|
sciq
|
Neutrophils and lymphocytes are examples of what type of cell?
|
white blood cell
|
sciq
|
What device is used to study charge?
|
electroscope
|
sciq
|
What are the organelles on which proteins are made during protein synthesis called?
|
ribosomes
|
sciq
|
What is the physical area where a specie lives?
|
habitat
|
sciq
|
What are some uses of chlorine gas?
|
cleaning, disinfecting and in swimming pools
|
sciq
|
Group 16 is called what?
|
the oxygen group
|
sciq
|
What are the organic compounds that the body needs in small amounts to function properly; humans need 13 different ones?
|
vitamins
|
sciq
|
Every chemical reaction occurs with a concurrent change in what?
|
energy
|
sciq
|
Most tissues regulated by the autonomic nervous system receive both sympathetic and parasympathetic input from?
|
postganglionic neurons
|
sciq
|
What helps the cell continually renew itself?
|
lysosomes
|
sciq
|
In the humid subtropical climate, summers are ____ but winters are very cold.
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wet
|
sciq
|
What kind of muscle relationship generally produces back-and-forth movement of a body part?
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antagonistic muscles
|
sciq
|
What is the name for an area that is covered in water, or at least has soggy soil, during all or part of the year?
|
a wetland
|
sciq
|
What are the two main parts of the human nervous system?
|
brain, spinal cord
|
sciq
|
Which members of the food chain break down remains of plants and other organisms when they die?
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decomposers
|
sciq
|
What is the unit of evolution?
|
population
|
sciq
|
Radar maps of venus show that it has mountains, canyons and volcanoes surrounded by plains of what?
|
lava
|
sciq
|
What do populations gain through births and immigration?
|
individuals
|
sciq
|
What descend from clouds in funnel-like shapes that spin violently, producing powerful winds?
|
tornadoes
|
sciq
|
Monoecious flowers are also known as “perfect” flowers because they contain both types of what organ?
|
sex organ
|
sciq
|
The white mountains in new hampshire are part of what province?
|
appalachian
|
sciq
|
The color of an object is determined by the what of it's reflected light?
|
wavelength
|
sciq
|
What organ eliminates solid wastes that remain after the digestion of food?
|
the large intestine
|
sciq
|
What type of maps detail detail the types and locations of rocks found in an area?
|
geologic maps
|
sciq
|
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