Answer:
Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Complete the paragraph by using the drop-down menus.
In this lab, you determined the relative ages of rock layers using the principles of relative dating. The
✔ law of superposition
says that a rock layer found closer to Earth’s surface is
✔ younger than
a rock layer that is deeper in Earth’s surface. The
✔ principle of cross-cutting relationships
states that intrusions are
✔ younger than
the rock layer they cut across. You also determined the absolute ages of rock layers using a
✔ mass spectrometer
. The data you gathered helped you identify an unknown fossil.
Explanation:
the checked ones are the right answers
The mechanisms of reproductive isolation<span> are a collection of evolutionary mechanisms, behaviors and physiological processes critical for speciation. They prevent members of different species from producing offspring, or ensure that any offspring are sterile.</span>
Answer - It will allow the molecules move against the concentration gradient which is pretty much acting against it. (Low concentration gradient TO high concentration)
Reason - It will use energy. For example in a river theres a down flow but if you want to get up top of the river you must go against it by going against the current. Pretty much the same thing but its happening with the cell in a active mode.