Biology, 05.05.2020 19:34 umezinwachukwuebuka1
A fern dies and is buried beneath many layers of mud, sand, and/or soil. Many years pass, and the mud, sand, and/or soil harden and turn to rock. Years of erosion erode the top layers of rock away. Eventually, the fossil, which is in the same shape as the fern, appears on the top.
A. Amber
B. Mold
C. Cast
D. Imprint
E. Petrified
Answers: 2
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Which of the following statements is true of enzymes? a)they dont provide an active site for substrates to bind in a reaction b)they act on a specific type of substrate in a reaction c)they unusable after a reaction d)they change shape after a reaction
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Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o
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Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation
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A fern dies and is buried beneath many layers of mud, sand, and/or soil. Many years pass, and the mu...
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