How do signal molecules work in a cancerous cell?
a. cancer cells make their own signal molecules, are insensitive to them, or simply grow without them.
b. cancer cells can never interpret signal molecules correctly.
c. cancer cells interpret them backwards such that growth signals stop growth and growth inhibitors cause growth.
d. cancer cells use signal molecules just the way normal cells do.
e. they don't usually work at all.

1. seamount a raised footwall block between normal fault creates this 2. syncline break between rocks where a hanging wall rises relative to a footwall 3. hot spring on rolling hills, this a dip between hills 4. volcanic neck created when a block with hanging walls slips down between normal faults 5. caldera underwater volcano that never reaches above sea level 6. horst natural hot water on earth's surface containing many minerals 7. graben underwater volcano whose top is eroded flat by waves 8. crater less than a mile in diameter; looks like a bowl at the top of a volcano 9. guyot magma that filled the central vent that remains after the volcano has eroded 10. reverse fault over 1 mile in diameter; looks like a bowl over a volcano