Which of the following is not a means by which cell signal pathways are terminated?
a) the signal is terminated by the binding of an inactivator molecule to the signal molecule.
b) the signal may be pumped out of the cell or into storage.
c) the extracellular signal molecule may be degraded.
d) the extracellular signal molecule may be transported into cells.

a adaptation is when organism changes itself to fit the environment

ex. when its cold outside i wear a jacket

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equal distribution i think.