Many north american animal species migrated to the south during pleistocene ice ages and returned to the north during interglacial periods. these observations are consistent with
a. expanded physiological tolerance.
b. distribution shift and habitat tracking.
c. migration barriers.
d. range expansion by adaptation.
e. declining habitat size.

Using the periodic table, determine which material is most likely a good conductor

The transport tubes for food coming down the plants are called?

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