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A series of cell divisions that results in the formation of an embryo is called:
A. mitosis B. meiosis C. osmosis D. cleavage |
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An animal that eats only plants is called a(n):
A. omnivore B. herbivore C. carnivore D. voracious |
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The process by which energy is provided at the cellular level is called:
A. respiration B. recreation C. oxidation D. metabolism |
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Light waves travel at a rate of about:
A. 186,000 miles per hour B. 186,000 miles per minute C. 18,600 miles per hour D. 186,000 miles per second |
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D. 186,000 miles per second |
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The largest moon in the solar system is:
A. Ganymede B. Titan C. Io D. Charon |
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7: The spinal cord is part of the:
A. circulatory system B. nervous system C. respiratory system D. digestive system |
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Joints that hold bones firmly together are called: |
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The top or broadest level of the classification system for living organisms is called:
A. class B. phylum C. kingdom D. genus |
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If there are two full moons in a single month, the second full moon is called:
A. new moon B. full moon C. blue moon D. secondary moon |
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The brainstem connects the brain to the:
A. heart B. lungs C. neck D. spinal cord |
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Red blood cells:
A. produce antibodies B. fight infections C. carry oxygen and carbon dioxide D. are few in number |
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C. carry oxygen and carbon dioxide |
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Protein can be found in all of the following foods EXCEPT:
A. eggs B. meat C. peas D. apples |
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Which inorganic substance is present in the greatest quantity inside animal cells?
A. protein B. oxygen C. sodium chloride D. water |
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Cell protoplasm is made up mostly of:
A. water B. oxygen C. sugar D. protein |
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A meter consists of:
A. 10 centimeters B. 100 millimeters C. 100 centimeters D. 10 millimeters |
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It’s impossible for the sun to turn into a black hole because:
A. it’s too large B. it’s too small C. it’s a yellow star D. it has planets |
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Electrons are particles that are:
A. positively charged B. neutral C. able to move freely D. negatively charged |
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The chamber of the heart that pumps blood to the lungs is called the:
A. right ventricle B. left ventricle C. right atrium D. left atrium |
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The atomic number of an atom is determined by:
A. the size of its nucleus B. the number of protons C. the number of electrons D. its location in the periodic table |
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The smallest part of an element that still acts like an element is:
A. the nucleus B. a compound C. the element itself D. the atom |
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How many planets in the solar system have rings?
A. one B. two C. three D. four |
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The temperature at which a solid becomes a liquid is its:
A. melting point B. boiling point C. freezing point D. concentration point |
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The surface of the earth is called the:
A. mantle B. core C. shawl D. crust |
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Not counting the sun, the closest star to the Earth is:
A. Rigel B. Proxima Centauri C. Antares D. Betel |
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