Which one of the following is not in the insect family?
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A protozoan never contains
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Charles Darwin suggested that species evolve by means of
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Coal is formed by the compression of
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Photosynthesis in plants does not require the availability of
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pH is a measure of
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What is mitosis?
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Gamma rays are
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Bases do not have which one of these particles?
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When measured on the pH scale an acid is
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When light travels from one medium into another, the light beam can be bent. This refers to
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The number of cycles per unit time of a wave is
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The outermost layer of the Earth is the crust. The crust has which of the following properties?
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Density is defined as
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Humans have ___ pairs of chromosomes in each cell.
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The site of photosynthesis in a plant is the
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Covalent bonds involve the _____ of electrons.
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Which of the following is not a trait of an anabolism in the metabolism process?
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When two like charges approach each other, they experience
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The volume of a gas varies
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