Darwin’s finches evolved on an island. what is the main reason that islands often provide good examples of evolution?
they have many niches.
they have many organisms that live on them.
they allow for automatic biogeographic isolation.
they allow for many variations to exist in species.

Blood made up of red and white blood cells work together to form

Which properties describe all matter?

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