Answer:
Cell membrane
Explanation:
According to the question, Lauren's diseased condition, which is cystic fibrosis, is characterized by her body's inability to control the flow of salt into and out of her cells leading to symptoms include coughing and wheezing when she tries to exercise.
Lauren's inability to control the movement of salt and water into her cells is as a result of an affected CELL MEMBRANE. The cell membrane is the organelle that controls what goes in and out of a cell due to its semi-permeability.
As the earth has active tectonics we know that rocks are recycled and the oldest rocks may therefore just be the oldest rocks that have not been recycled yet. We know the true age of the earth by looking at radioactive isotopes of things like spacedust and meteors that formed at the same time as the earth as they have not been affected by the tectonic process of recycling here on Earth.
Answer:
the answer is D which is CJD
