3. If the plasma membrane wasn't selectively permeable, what would happen to your cells when you took a shower? How would this affect
you? (3 points)

Our body will swell.

Explanation:

If the plasma membrane wasn't selectively permeable, the cell will swell and burst due to high concentration of water go inside the cell. If the cell has no selectively permeable membrane, the flow of liquid is incontrollable both inside and outside of the cell. The cell maintain homeostasis due to the selective permeability of plasma membrane so if we took shower all the water go inside the cell and our body swells.

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.