Humans can have many different eye colors ranging from blue to brown. which of the statements could explain this array of different eye colors? a. the genes affecting eye color must produce pigments that break down over time. b. in human populations there are many alleles of the genes affecting eye color, not just two. c. the genes affecting eye color must be linked and located near each other on a chromosome. d. some alleles are dominant in some people and recessive in others.

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