Free energy
A. includes the energy lost as heat.
B. is the amount of energy gained by breaking bonds of a chemical.
C. differs for a given reaction depending on the number of steps involved.
D. always results in a decrease in total energy.
E. is the amount of energy gained by breaking bonds of a chemical AND differs for a given reaction depending on the number of steps involved.
B
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The idea that many species that once lived are now extinct due to major geologic events is called ________ and was developed by ________
a. catastrophism / Georges Cuvier b. inheritance of acquired traits / Jean-Baptiste Lamark c. principles of geology / Charles Lyell d. evolution / Charles Darwin
Four of the five answers listed below are characteristics of cnidarians. Select the exception
a. ciliated larvae b. polyp form c. jellylike matrix d. nematocyst e. pharynx
If evolution has occurred:
a) the allele frequencies in a population have changed. b) the mean value for a trait has increased or decreased. c) the individuals in a population have had differential reproductive success. d) one species has split into two distinct species. e) None of the above is correct.
A(n) ________ operon is one whose transcription is decreased by effector molecules.
A. compressible B. coinducible C. inducible D. repressible E. activated