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Questions (574)
How are red blood cells able to move through narrow vessels to carry oxygen throughout a multicellular organism? (1 point)
1 answer
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What is the function of a nerve cell in a multicellular organism? (1 point) Responses make and move protein make and move
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Which statement is correct about an amoeba and a white blood cell? (1 point) Responses Both an amoeba and a white blood cell can
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How does an amoeba compare with a red blood cell? (1 point) Responses They are both organisms. They are both organisms. An
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Which statement about multicellular organisms is correct? (1 point) Responses A multicellular organism has many specialized
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Unicellular cells must carry out ___ of life.(1 point) Responses specific functions specific functions a few functions a few
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Which part of the cell functions to recognize other cells? (1 point) Responses cell wall cell wall nucleus nucleus cytoplasm
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Which statement correctly describes the function of pumps in the plasma membrane? (1 point) Responses Pumps store water in the
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What helps the plasma membrane function? (1 point) Responses chloroplasts and mitochondria chloroplasts and mitochondria nuclei
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Which were reasons the Inca Empire fell? (1 point) Responses Spanish conquest, natural disaster, disease Spanish conquest,
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How did the Inca adapt their environment to improve farming? (1 point) Responses The Inca cut strips of level land called
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Which statement is correct about rough ER and smooth ER?(1 point) Responses Rough ER contains ribosomes, and smooth ER
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Which organelle is responsible for transporting lipids in the cell? (1 point) Responses rough ER rough ER mitochondrion
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Which structure separates an animal cell from its surrounding environment? (1 point) Responses plasma membrane plasma membrane
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Which statement is correct about organelles that provide energy? (1 point) Responses They are responsible for protein synthesis.
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Read these lines from "Dreams" by Langston Hughes: "Hold fast to dreams For if dreams die Life is a broken-winged bird That
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Read the following lines from "The Road Not Taken" by Robert Frost: "Two roads diverged in a yellow wood, And sorry I could not
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In Maya Angelou's "Still I Rise," the line "But still, like dust, I'll rise" creates a mood of: (1 point) Responses A. Defeat A.
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How does a poet typically create a mysterious mood?(1 point) Responses A. By using loud, energetic words A. By using loud,
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In a poem about winter, which word combination would create a lonely mood? (1 point) Responses A. Snowball fights and sledding
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Which cells contain chloroplasts?(1 point) Responses cells in animal muscles cells in animal muscles cells in animal brains
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One reason animal cells don't need a central vacuole is because they often have smaller vacuoles for storage. What is another
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What made the discovery of cells possible?(1 point) Responses the observation of cells by Hooke and Pasteur the observation of
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Of these things in an environment, which one is a living thing?(1 point) Responses air (wind) air (wind) soil (clay) soil (clay)
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How is an electromagnetic field produced?(1 point) Responses when an object has an electrical charge when an object has an
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Which purpose does a light bulb serve in a circuit?(1 point) Responses switch switch cell cell wire wire load
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A particular circuit is made up of a battery, a switch, a buzzer, and wires connecting the components. All of the components are
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Solar cells are used to power a person’s house. Which statement about the process is correct?(1 point) Responses Energy from
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Which energy transformation happens when a toaster is plugged in to an outlet in the wall and used to make toast?(1 point)
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How does adding a resistor to an electric circuit affect the current?(1 point) Responses The resistor decreases the current by
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19 views
Circuit A has a voltage of 10 V, and circuit B has a voltage of 15 V. Which statement about the circuits is correct?(1 point)
1 answer
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Which statement describes a difference between insulators and conductors?(1 point) Responses Insulators can transmit electric
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Why is glass a good insulator?(1 point) Responses The atoms in glass hold on tightly to their negatively charged particles. The
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Use the table of electric force between objects in two different interactions to answer the question. Interaction Charge on
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Which statement explains how the charges on objects determine the electric force between them?(1 point) Responses Objects with
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Use the image to answer the question. What are the particles demonstrating in this image? (1 point) Responses electromagnetic
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How is a magnetic field produced?(1 point) Responses when a current runs through a conductor when a current runs through a
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What does electric current measure?(1 point) Responses how well electrical energy moves in a circuit how well electrical energy
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An electromagnet is the most powerful type of magnet there is. It is a magnet with a current running through it that can be
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What produces the magnetic force of an electromagnet?(1 point) Responses static charged particles on the wire static charged
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Two electromagnets are made with the same core and the same type of wire. Electromagnet A has a low-intensity current, and
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Which factors directly affect the magnetic force produced by an electromagnet?(1 point) Responses number of turns in the wire,
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Use the table of information about four electromagnets to answer the question. Electromagnet Current Intensity Number of Turns
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Which energy transformation occurs when you rub your hands together to warm them?(1 point) Responses thermal energy to kinetic
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What is chemical energy?(1 point) Responses energy due to the jiggling motion of molecules energy due to the jiggling motion of
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How does the power switch on a computer work?(1 point) Responses Turning the switch on completes the circuit between the power
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The batteries of some flashlights can be charged by turning a handle. Which energy transformation is happening in this
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A circuit in a home provides power to a light fixture. The homeowners want to use a compact fluorescent bulb instead of an
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An electric circuit has an expected current of 80 amps. An electrician measures the current in the circuit at 120 amps. Which
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Which statement best defines the resistance of an electric circuit?(1 point) Responses It is the measurement of the rate of
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Circuit A has a resistance of 7.5 ohms, and circuit B has a resistance of 5 ohms. Which statement about the circuits must be
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Use the information in the table about four different electric circuits to answer the question. Circuit Resistance (ohms)
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A person plugs a power cord into an electrical outlet in the wall. The power cord is covered in black rubber. Which statement is
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Pure water and pure salt are poor conductors of electricity. When salt is dissolved in water, the resulting solution conducts
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How does the magnitude of the electrical charge on objects affect the electric force between them?(1 point) Responses As the
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Use the table of observations about the electric force between charged objects to answer the question. Charge of Object 1 (C)
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Object A has a charge of –1 Coulomb. At a given distance, the object with which charge would be most strongly attracted by
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A student observes interactions between two sets of electrically charged objects. In each set, the objects carry either a charge
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Why are the turbines for hydroelectric dams located far below the top of the dam?(1 point) Responses to ensure that the water
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Four rivers have the same volume of water flow over time but fall from different heights to power hydroelectric dams. Which dam
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This image of a roller coaster is designed to show important information about potential and kinetic energy. One of these
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Which falling object will result in the least kinetic energy when it collides with the ground?(1 point) Responses 10 grams of
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A student wants to determine the effect of mass on kinetic energy. She will drop two balls of the same size into a pool of
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Use the table of information from an investigation to answer the question. Student Depth of Object in Sand (cm) Maddie 1.8
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A person throws a ball up into the air. At which point in its path will the ball have the greatest potential energy?(1 point)
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Some population experts say Earth cannot sustain a population of more than 10 billion people. How would you write an inequality
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The level of noise in decibels (n) that is permitted during the night in the United Kingdom can be described as n≤24 . What
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The water pressure supplied to a residence should be no less than 55 pounds per square inch. What inequality expresses the
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The number of small fish you can keep in a 20-gallon tank can be expressed as f≤15 . What does that inequality mean?(1 point)
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Suppose a scientist finds that the average female gorilla needs to have at least 2.1 surviving offspring in order for the
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What would a number line representing g≠7 look like?(1 point) Responses hollow circle at 7, with an arrow extending to the
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Describe what a number line representing d>−4 would look like. (1 point) Responses hollow circle at −4 , with an arrow
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In which of the given sets of numbers are all the numbers solutions of 4x+7≠23 ? (1 point) Responses 1, 2, 3, 4 1, 2, 3, 4 4,
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In which of the given sets of numbers are all the numbers solutions of 18+2x≥36 ?(1 point) Responses 0, 3, 9, 12 0, 3, 9, 12
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A baking club has a bake sale, selling brownies at $1.50 per brownie. Write an equation using two variables to show the
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Lola drives her car at 35 miles per hour. Write an equation using two variables to show the relationship between the number of
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Gabriel owns a babysitting service. He charges $8 per hour to babysit. Write an equation using two variables to show the
1 answer
19 views
Anja buys gas for her car at $3 per gallon. Write an equation using two variables to show the relationship between the number of
1 answer
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A baker needs 4 cups of flour per loaf of bread. Write an equation using two variables to show the relationship between the
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Troy is selling homemade cake slices at the football game. The number of cakes slices he sells determines how much money he
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In an agricultural report, lime trees receiving the most water produced the most limes. Identify the dependent and independent
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Marjorie is conducting a science experiment to measure the amount of pollution produced by cars that used gasoline containing
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Robin is baking a cake for the first time. Even though the box says to set the oven to 350 degrees, Robin is thinking that the
1 answer
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Which statement is sarcastic?(1 point)
Responses “Thanks, this dinner is great,” he said as he served the food. “Thanks,
1 answer
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Which phrase describes verbal irony?(1 point)
Responses irony that is expressed through speech irony that is expressed through
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Which statement is the best description of irony?(1 point)
Responses The description of an event or viewpoint is clear and
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15 views
Write an argumentative essay about whether scientists should or should not continue pushing for de-extinction in species.
Your
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Write an argumentative essay about whether scientists should or should not continue pushing for de-extinction in species.
Your
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Ellie has x dollars in her savings account. She withdrew $32.65 for a purchase, which left her with $125.35 in the account.
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Solve the equation 8.2y=53.3 using inverse operations.(1 point) Responses y=6.5 y equals 6.5 y=61.5 y equals 61.5 y=45.1 y
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Solve the equation 178.56=m−76.9 using inverse operations.(1 poinjavascript:void(0)t) Responses 101.66=m 101.66 equals m
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Solve for v . Simplify if needed. v−6/15=24/15 (1 point) Responses 18/0=undefined Start Fraction 18 over 0 End Fraction equals
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In Gloria’s class, 14 students’ favorite drink is lemonade. If this is 2/3 of the class, how many students are in the
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The Kievan Rus developed close ties with the Byzantines, leading early Russia to adopt The Kievan Rus developed close ties with
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Ahmed is making omelets for six of his friends. He plans on using two eggs for each omelet. How many eggs will Ahmed need to
1 answer
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Solve for x : 4x/9=18 (1 point) Responses 4.5 4.5 18 18 8 8 40.5
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Solve for x : 4x9=18 (1 point) Responses 4.5 4.5 18 18 8 8 40.5
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Solve for x : 53x=25 (1 point) Responses 25 25 15 15 41.67 41.67 75
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Susan and Benjamin are getting married. They ordered 225 invitations. Three members of the bridal party agreed to help them mail
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A large pile of books is divided into four equal-sized stacks. How many books are in each pile if there are 156 books total?(1
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13 views
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