Which of the following statements best justifies the inclusion of test tubes 3 and 7 in the experiment? A
They will show whether the isolated cellular contents have enzymatic activity.
B )
They will show whether environmental pH affects the function of the enzyme.
They will show the rate of product formation in the absence of bacterial factors.
D
They will show the rate of product formation in the absence of the substrate.
Mi

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time

Explain why phospholipid molecules form a bilayer. (3 marks)

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