Thermodynamics
What will be an ideal response?
study of heat and its transformation to mechanical energy, characterized by two principal laws
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What invention about 11,000 years ago led to a
boom in the human population?
a. the wheel b. agriculture c. the printing press d. the steam engine e. all of these
Which of the following is TRUE about the accuracy of DNA replication?
A) Many errors are made during DNA replication, but this does not matter because repair enzymes mend the errors. B) DNA polymerase always makes a perfect copy of the original DNA. C) DNA polymerase makes very few errors, so no repair enzymes are needed. D) Many errors are made during DNA replication, but this does not matter because of the immense size of the DNA molecule. E) The few errors made by DNA polymerase are usually corrected by repair enzymes.
You return home to find that your baby brother has scattered his toy trains and trucks all over the floor of your room. As you begin to pick up the toys and put them away, you realize that even though he is just a baby, he has clearly mastered
A. the second law of thermodynamics. B. potential energy. C. free energy. D. the first law of thermodynamics.
Biological evolution is the process whereby
A. living cells arose from nonliving chemicals. B. prokaryotic cells became eukaryotic cells. C. humans descended from apes. D. only the strongest survive. E. species change through time.