Which of the following statements about hormones are correct?

(a) hormones can be peptides, steroids, or amino acid derivatives.
(b) hormones can stimulate the synthesis of target proteins through the activation of specific genes.
(c) hormones can directly activate or inhibit enzymes through the action of signal molecules.
(d) hormones can increase the cellular uptake of metabolites.

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

When a population split into two subgroups what is most likely to cause the subgroups to develop different traits?

Why should organisms reproduce more offspring than will survive? select all that apply.