All vertebrates contain a similar pattern of organs, indicating that they are related to one another. This represents which of the following lines of evolutionary evidence?
A. homology
B. development
C. biogeography
D. fossil record
E. convergent evolution
Answer: A
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The primary function of an enzyme or any biological catalyst is to
A. reduce the energy of activation of a reaction. B. increase the rate of a reaction. C. increase the rate of a reaction and change the direction of a reaction. D. reduce the energy of activation and increase the rate of a reaction. E. change the direction of a reaction.
True seals rely on their hindlimbs for forward swimming propulsion
Indicate whether the statement is true or false
Why does yogurt taste sharp?
A) It has not been aged long enough to mellow. B) The taste is from the small amount of alcohol it contains, and alcohol tastes sharp. C) The taste is from the large amount of carbon dioxide it contains, and carbon dioxide tastes sharp. D) The taste is from the lactic acid it contains, and acids taste sharp.
In order to fit within a cell, DNA becomes more compact by
A.) breaking apart into separate genes B.) extending to form very long, thin molecules C.) wrapping tightly around histones D.) being enzymatically changed into a protein