Assume that water constitutes 60% of a person’s body weight. What fraction of a person’s body weight is due to extracellular body water?

Imagine a saltwater fish is placed into freshwater. What would happen on a cellular level?  How are fish like salmon, who spend the first part of their life in the ocean and then travel to freshwater to spawn, able to overcome potential physiological consequences? Describe three adaptations salmon use to overcome the salinity changes encountered.

Renal tubule cells in the kidney medulla are constantly exposed to high extracellular osmolirity. How do they maintain normal cell volume?

The ability of the Goldenrod Gall Moth caterpillar to avoid freezing is due to ____ which passes through a _____ membrane.   Question options:   Glycerol, permeable   Glycerol, semipermeable   Glucose, semipermeable   Glucose, permeable